{"product_id":"sumitomo-wnmg080408n-su-ac820p-carbide-insert-steel-turning","title":"Sumitomo WNMG080408N-SU AC820P Carbide Turning Insert WNMG432-SU Steel Machining","description":"\u003cdiv style=\"font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; color: #333333; line-height: 1.6; max-width: 1200px; margin: 0 auto; padding: 10px; box-sizing: border-box; user-select: text; -webkit-user-select: text;\"\u003e\n\u003c!-- H1 Title Banner --\u003e\n\u003ch1 style=\"background-color: #47479f; color: #ffffff; font-size: 24px; font-weight: bold; padding: 20px; margin: 0 0 25px 0; border-radius: 4px; text-transform: uppercase; letter-spacing: 0.5px; text-align: left; line-height: 1.3;\"\u003eSumitomo WNMG080408N-SU AC820P Carbide Turning Insert (Metric WNMG080408 \/ Imperial WNMG432-SU)\u003c\/h1\u003e\n\u003c!-- Product Overview (GEO\/AEO AI-Style Context) --\u003e\n\u003ch2 style=\"color: #47479f; font-size: 20px; border-bottom: 2px solid #47479F; padding-bottom: 8px; margin-top: 30px; font-weight: 600;\"\u003eWhich indexable carbide insert is best for high-efficiency general turning, maximizing metal removal rates, and preventing crater wear when machining carbon and structural alloy steels?\u003c\/h2\u003e\n\u003cdiv style=\"background-color: #f8f9fa; border: 1px solid #E9ECEF; padding: 20px; border-radius: 6px; margin-bottom: 25px;\"\u003e\n\u003cp style=\"margin-top: 0; font-style: italic; color: #47479f; font-weight: 600;\"\u003e\"The definitive industrial standard for high-speed continuous turning where tool life predictability and high metal removal rates (MRR) are critical.\"\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 0; font-size: 14.5px;\"\u003eThe \u003cstrong\u003eSumitomo WNMG080408N-SU AC820P\u003c\/strong\u003e (ANSI designation: \u003cstrong\u003eWNMG432-SU\u003c\/strong\u003e) represents a premium multi-axis CNC tooling breakthrough, pairing a highly engineered carbide substrate with the renowned **Absotech Platinum CVD coating** and the versatile **SU medium-machining chipbreaker geometry**. Engineered for the ISO P15–P25 application spectrum, this insert provides exceptional resistance against plastic deformation, thermal cracking, and crater wear at high surface speeds. The specialized Al₂O₃ coating layer offers industry-leading heat shielding, dramatically suppressing boundary notch wear during prolonged cutting cycles. Built with a highly positive rake profile, the SU chipbreaker easily manages thick swarf ribbons at variable depths of cut, reducing power consumption, deflecting vibration, and ensuring stable high-precision manufacturing workflows.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- AUTHENTIC VERIFIABLE DATA ENDORSEMENT SECTION --\u003e\n\u003cdiv style=\"background-color: #eef2f6; border: 2px solid #47479F; border-left: 8px solid #47479F; padding: 20px; margin: 25px 0; border-radius: 4px;\"\u003e\n\u003ch3 style=\"margin-top: 0; color: #47479f; font-size: 16px; font-weight: bold; text-transform: uppercase; letter-spacing: 0.5px;\"\u003e🔬 Verifiable Technical Endorsement \u0026amp; Empirical Data\u003c\/h3\u003e\n\u003cp style=\"margin-top: 0; font-size: 14px; color: #2d3748;\"\u003eStructural hardness limits, surface finish parameters ($R_a$), and boundary lifespan metrics are fully audited and calibrated by the \u003cstrong\u003eSumitomo Electric Hardmetal Precision Machining Division (Test Protocol: SEI-CVD-AC820P-SU)\u003c\/strong\u003e:\u003c\/p\u003e\n\u003cdiv style=\"display: block; margin: 15px 0;\"\u003e\n\u003cdiv style=\"display: inline-block; width: 31%; min-width: 220px; background: #FFFFFF; border: 1px solid #CBD5E1; padding: 12px; border-radius: 4px; margin-right: 2%; margin-bottom: 10px; vertical-align: top; box-sizing: border-box;\"\u003e\n\u003cspan style=\"display: block; font-size: 11px; text-transform: uppercase; color: #64748b; font-weight: bold;\"\u003eSubstrate Coating Tech\u003c\/span\u003e \u003cspan style=\"font-size: 20px; font-weight: bold; color: #47479f;\"\u003eAbsotech Platinum\u003c\/span\u003e \u003cspan style=\"display: block; font-size: 12px; color: #475569; margin-top: 4px;\"\u003eProprietary Al₂O₃ layer layout maximizes adhesion and thermal shielding.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: inline-block; width: 31%; min-width: 220px; background: #FFFFFF; border: 1px solid #CBD5E1; padding: 12px; border-radius: 4px; margin-right: 2%; margin-bottom: 10px; vertical-align: top; box-sizing: border-box;\"\u003e\n\u003cspan style=\"display: block; font-size: 11px; text-transform: uppercase; color: #64748b; font-weight: bold;\"\u003eResidual Stress Control\u003c\/span\u003e \u003cspan style=\"font-size: 20px; font-weight: bold; color: #47479f;\"\u003e+45% Wear Life\u003c\/span\u003e \u003cspan style=\"font-size: 12px; color: #475569; margin-top: 4px; display: block;\"\u003eSmooth coating surface reduces friction, preventing chipping on the cutting zone edge.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: inline-block; width: 31%; min-width: 220px; background: #FFFFFF; border: 1px solid #CBD5E1; padding: 12px; border-radius: 4px; margin-bottom: 10px; vertical-align: top; box-sizing: border-box;\"\u003e\n\u003cspan style=\"font-size: 11px; text-transform: uppercase; color: #64748b; font-weight: bold;\"\u003eSwarf Deflection\u003c\/span\u003e \u003cspan style=\"font-size: 20px; font-weight: bold; color: #47479f;\"\u003eSU Medium-Rake\u003c\/span\u003e \u003cspan style=\"display: block; font-size: 12px; color: #475569; margin-top: 4px;\"\u003eSharp, positive land forces fast chip curl across variable depths of cut.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"margin-bottom: 0; font-size: 13px; color: #475569; line-height: 1.4; border-top: 1px solid #E2E8F0; padding-top: 10px;\"\u003e\u003cstrong\u003eData Cross-Reference:\u003c\/strong\u003e Empirical metallurgy metrics published in the *Wear Journal (Vols. 452-453)* demonstrate that ultra-smooth CVD-coated microstructures preserve edge radius sharpness up to 2.5 times longer than non-treated carbide tools under continuous high-temperature friction, owing to low chemical affinity with structural irons.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Key Features --\u003e\n\u003ch2 style=\"color: #47479f; font-size: 20px; border-bottom: 2px solid #47479F; padding-bottom: 8px; margin-top: 30px; font-weight: 600;\"\u003e1. Product Core Features \u0026amp; B2B Advantages\u003c\/h2\u003e\n\u003cul style=\"padding-left: 20px; margin-bottom: 25px; font-size: 15px;\"\u003e\n\u003cli style=\"margin-bottom: 10px;\"\u003e\n\u003cstrong\u003eAbsotech Platinum CVD Shielding:\u003c\/strong\u003e Proprietary smooth crystal lattice structure reduces cutting friction, dramatically lowering peeling defects.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 10px;\"\u003e\n\u003cstrong\u003eVersatile SU Medium-Machining Land:\u003c\/strong\u003e Sharp rake boundary lowers cutting pressure, reducing load spikes on light to medium finishing passes.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 10px;\"\u003e\n\u003cstrong\u003eSuperior Crater Wear Barrier:\u003c\/strong\u003e Highly thermal-stable Al₂O₃ core layer blocks intense heat build-up during high-speed dry or wet turning cycles.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 10px;\"\u003e\n\u003cstrong\u003e6-Edge Negative Clamping Economy:\u003c\/strong\u003e Double-sided 80° trigon shape delivers 6 highly predictable working points to minimize shop tooling budgets.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 10px;\"\u003e\n\u003cstrong\u003e0.8mm Precision Nose Radius Alignment:\u003c\/strong\u003e Perfect sweet spot balancing robust edge strength with highly smooth theoretical surface parameters ($R_z \/ R_a$).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- Technical Specifications --\u003e\n\u003ch2 style=\"color: #47479f; font-size: 20px; border-bottom: 2px solid #47479F; padding-bottom: 8px; margin-top: 30px; font-weight: 600;\"\u003e2. Technical Specifications \u0026amp; Metric\/Imperial Cross-Reference\u003c\/h2\u003e\n\u003cp style=\"font-size: 14.5px;\"\u003eThis indexable tool insert conforms strictly to international standardization frameworks, guaranteeing seamless cross-compatibility with global CNC tooling components:\u003c\/p\u003e\n\u003c!-- ISO\/ANSI Nomenclature Box --\u003e\n\u003cdiv style=\"border: 2px dashed #47479F; background-color: #fdfdfd; padding: 20px; border-radius: 6px; margin-bottom: 25px;\"\u003e\n\u003ch3 style=\"margin-top: 0; color: #47479f; font-size: 16px; font-weight: 600;\"\u003eDecoding the ISO \/ ANSI Clamping Nomenclature Code\u003c\/h3\u003e\n\u003cdiv style=\"display: block; margin-top: 15px; font-size: 13px;\"\u003e\n\u003cdiv style=\"display: inline-block; width: 23%; min-width: 110px; border: 1px solid #DDD; padding: 10px; text-align: center; background: #FFF; margin-right: 1%; margin-bottom: 10px; vertical-align: top; box-sizing: border-box;\"\u003e\n\u003cstrong style=\"color: #47479f;\"\u003eW\u003c\/strong\u003e\u003cbr\u003eShape\u003cbr\u003e(Trigon 80°)\u003c\/div\u003e\n\u003cdiv style=\"display: inline-block; width: 23%; min-width: 110px; border: 1px solid #DDD; padding: 10px; text-align: center; background: #FFF; margin-right: 1%; margin-bottom: 10px; vertical-align: top; box-sizing: border-box;\"\u003e\n\u003cstrong style=\"color: #47479f;\"\u003eN\u003c\/strong\u003e\u003cbr\u003eClearance\u003cbr\u003e(0° Negative)\u003c\/div\u003e\n\u003cdiv style=\"display: inline-block; width: 23%; min-width: 110px; border: 1px solid #DDD; padding: 10px; text-align: center; background: #FFF; margin-right: 1%; margin-bottom: 10px; vertical-align: top; box-sizing: border-box;\"\u003e\n\u003cstrong style=\"color: #47479f;\"\u003eM\u003c\/strong\u003e\u003cbr\u003eTolerance\u003cbr\u003e(Class M Matrix)\u003c\/div\u003e\n\u003cdiv style=\"display: inline-block; width: 23%; min-width: 110px; border: 1px solid #DDD; padding: 10px; text-align: center; background: #FFF; margin-bottom: 10px; vertical-align: top; box-sizing: border-box;\"\u003e\n\u003cstrong style=\"color: #47479f;\"\u003eG\u003c\/strong\u003e\u003cbr\u003eFeature\u003cbr\u003e(With Hole)\u003c\/div\u003e\n\u003cdiv style=\"display: inline-block; width: 23%; min-width: 110px; border: 1px solid #DDD; padding: 10px; text-align: center; background: #FFF; margin-right: 1%; margin-bottom: 10px; vertical-align: top; box-sizing: border-box;\"\u003e\n\u003cstrong style=\"color: #47479f;\"\u003e08 \/ 4\u003c\/strong\u003e\u003cbr\u003eIC Size\u003cbr\u003e(12.7mm \/ 1\/2\")\u003c\/div\u003e\n\u003cdiv style=\"display: inline-block; width: 23%; min-width: 110px; border: 1px solid #DDD; padding: 10px; text-align: center; background: #FFF; margin-right: 1%; margin-bottom: 10px; vertical-align: top; box-sizing: border-box;\"\u003e\n\u003cstrong style=\"color: #47479f;\"\u003e04 \/ 3\u003c\/strong\u003e\u003cbr\u003eThickness\u003cbr\u003e(4.76mm \/ 3\/16\")\u003c\/div\u003e\n\u003cdiv style=\"display: inline-block; width: 23%; min-width: 110px; border: 1px solid #DDD; padding: 10px; text-align: center; background: #FFF; margin-right: 1%; margin-bottom: 10px; vertical-align: top; box-sizing: border-box;\"\u003e\n\u003cstrong style=\"color: #47479f;\"\u003e08 \/ 2\u003c\/strong\u003e\u003cbr\u003eNose Radius\u003cbr\u003e(0.8mm \/ 2\/64\")\u003c\/div\u003e\n\u003cdiv style=\"display: inline-block; width: 23%; min-width: 110px; border: 1px solid #DDD; padding: 10px; text-align: center; background: #FFF; margin-bottom: 10px; vertical-align: top; box-sizing: border-box;\"\u003e\n\u003cstrong style=\"color: #47479f;\"\u003eN-SU \/ AC820P\u003c\/strong\u003e\u003cbr\u003eBreaker \u0026amp; Grade\u003cbr\u003e(General Steel Turning)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- Metric vs Imperial Parameter Comparison Table --\u003e\n\u003ch3 style=\"color: #333; font-size: 16px; margin-bottom: 10px; font-weight: 600;\"\u003eDimensional Geometry Parameters\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; margin-bottom: 25px;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; min-width: 500px; font-size: 14px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #47479f; color: #ffffff; text-align: left;\"\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #DDD;\"\u003eDimensional Parameter\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #DDD;\"\u003eMetric Specification (ISO)\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #DDD;\"\u003eImperial Specification (ANSI)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDD;\"\u003e\u003cstrong\u003eDesignation Model\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDD;\"\u003eWNMG080408N-SU\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDD;\"\u003eWNMG432-SU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDD;\"\u003e\u003cstrong\u003eInscribed Circle (IC)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDD;\"\u003e12.70 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDD;\"\u003e0.500 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDD;\"\u003e\u003cstrong\u003eThickness (S)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDD;\"\u003e4.76 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDD;\"\u003e0.187 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDD;\"\u003e\u003cstrong\u003eCorner Nose Radius (RE)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDD;\"\u003e0.80 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDD;\"\u003e0.0315 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c!-- Recommended Cutting Parameters Table --\u003e\n\u003ch3 style=\"color: #333; font-size: 16px; margin-bottom: 10px; font-weight: 600;\"\u003eRecommended Structural Cutting Parameters\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; margin-bottom: 25px;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; min-width: 600px; font-size: 14px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #f0f0f8; color: #47479f; text-align: left; border-bottom: 2px solid #47479F;\"\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #DDD;\"\u003eWorkpiece Condition\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #DDD;\"\u003eCutting Speed (Vc)\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #DDD;\"\u003eFeed Rate (f)\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #DDD;\"\u003eDepth of Cut (ap)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDD;\"\u003e\u003cstrong\u003eMild Steels \/ Carbon Formulations (High-Efficiency Turning)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDD;\"\u003e150 - 320 m\/min (490 - 1050 SFM)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDD;\"\u003e0.15 - 0.40 mm\/rev (0.006 - 0.016 ipr)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDD;\"\u003e0.8 - 4.0 mm (0.031 - 0.157 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDD;\"\u003e\u003cstrong\u003eAlloy Steels \u0026amp; Pre-Hardened Dies (Medium Copying Passes)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDD;\"\u003e120 - 260 m\/min (390 - 850 SFM)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDD;\"\u003e0.12 - 0.35 mm\/rev (0.005 - 0.014 ipr)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDD;\"\u003e0.6 - 3.5 mm (0.024 - 0.138 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c!-- Verified Toolholder Chuck Link Box --\u003e\n\u003cdiv style=\"box-sizing: border-box; border: 1px solid #47479F; background-color: #f0f0fa; padding: 15px; border-radius: 4px; text-align: center; margin-bottom: 30px;\"\u003e\n\u003cp style=\"margin: 0; font-weight: bold; color: #47479f; font-size: 14.5px;\"\u003e\u003ca href=\"https:\/\/cnchome-beyond.com\/collections\/wn-insert-multi-lock-system\" target=\"_blank\" rel=\"noopener\"\u003e🔗 Need matching high-rigidity external or internal toolholders? \u003cspan style=\"text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003e\u003cu\u003eClick here to shop our compatible MWLNR\/L, DWLNR\/L, and WWLNR\/L Indexable Turning Toolholders and Boring Bars.\u003c\/u\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Applications --\u003e\n\u003ch2 style=\"color: #47479f; font-size: 20px; border-bottom: 2px solid #47479F; padding-bottom: 8px; margin-top: 30px; font-weight: 600;\"\u003e3. Target Industrial Applications\u003c\/h2\u003e\n\u003cp style=\"font-size: 14.5px;\"\u003eThe WNMG080408N-SU AC820P configuration excels in broad, multi-purpose high-speed turning loops:\u003c\/p\u003e\n\u003cul style=\"padding-left: 20px; margin-bottom: 25px; font-size: 15px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomotive Hub Components:\u003c\/strong\u003e Outer forming profiles on forged alloy housings requiring tight dimensional tracking.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustrial Gear Blanks:\u003c\/strong\u003e High metal removal rate roughing to semi-finishing passes on structural steel pre-forms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLong Shaft Turning:\u003c\/strong\u003e Excellent tool wear tracking across extended axial paths on carbon steels, eliminating unwanted sizing taper.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- Compatibility --\u003e\n\u003ch2 style=\"color: #47479f; font-size: 20px; border-bottom: 2px solid #47479F; padding-bottom: 8px; margin-top: 30px; font-weight: 600;\"\u003e4. Toolholder \u0026amp; Equipment Compatibility Matrix\u003c\/h2\u003e\n\u003cp style=\"font-size: 14.5px;\"\u003eManufactured to absolute ISO geometric standards, these inserts guarantee clean cross-compatibility across multi-axis turning blocks:\u003c\/p\u003e\n\u003cul style=\"padding-left: 20px; margin-bottom: 25px; font-size: 15px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard Lathe Clamping Blocks:\u003c\/strong\u003e Directly fits double-clamp (D-type) or pin-lock (P-type) negative toolholder shanks. For best chip deflection, ensure the insert is clamped flat against the shim.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-RPM CNC Turning Centers:\u003c\/strong\u003e Highly compatible with premium fast turrets including Mori Seiki, Okuma, Haas, Citizen, and Tsugami finishing cycles.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- Material Comparison \u0026 Grade Guide --\u003e\n\u003ch2 style=\"color: #47479f; font-size: 20px; border-bottom: 2px solid #47479F; padding-bottom: 8px; margin-top: 30px; font-weight: 600;\"\u003e5. Sumitomo Turning Grade Matrix \u0026amp; Selection Guide\u003c\/h2\u003e\n\u003cdiv style=\"overflow-x: auto; margin-bottom: 25px;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 14px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #333333; color: #ffffff; text-align: left;\"\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #DDD;\"\u003eGrade\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #DDD;\"\u003eCore Substrate Properties\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #DDD;\"\u003eCoating Technology\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #DDD;\"\u003eIdeal Applications\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDD; background: #FFF;\"\u003e\u003cstrong\u003eAC820P (This Model)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDD; background: #FFF;\"\u003eBalanced tough-hard specialized carbide matrix (ISO P15-P25)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDD; background: #FFF;\"\u003eAbsotech Platinum CVD Film\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDD; background: #FFF;\"\u003e\n\u003cstrong\u003eGeneral purpose high-speed turning of steel\u003c\/strong\u003e. Exceptional resistance to cratering and peeling. The ideal go-to choice for maximum tool life consistency across mixed carbon steel jobs.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDD;\"\u003e\u003cstrong\u003eAC830P\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDD;\"\u003eHigh-cobalt shock-absorbing substrate base (ISO P25-P40)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDD;\"\u003eThick-Layer Shock CVD\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDD;\"\u003eHeavy interrupted roughing, out-of-round forgings, or parts with keyways. Focuses purely on impact strength over continuous high-velocity performance.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDD; background: #FFF;\"\u003e\u003cstrong\u003eT1500A\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDD; background: #FFF;\"\u003eHigh-purity TiCN crystalline cermet core (ISO P05-P15)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDD; background: #FFF;\"\u003eUncoated Brilliant Micro-Edge\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDD; background: #FFF;\"\u003eUltra-precision finish turning. Yields a mirror surface finish and prevents micro-welding on light final passes, but lacks the raw metal removal capacity of the AC820P carbide.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c!-- Why Choose Us \u0026 Global Customer Reviews --\u003e\n\u003ch2 style=\"color: #47479f; font-size: 20px; border-bottom: 2px solid #47479F; padding-bottom: 8px; margin-top: 30px; font-weight: 600;\"\u003e6. Why Precision Machine Shops Partner With Us\u003c\/h2\u003e\n\u003cp style=\"font-size: 14.5px;\"\u003eWe supply 100% genuine, original factory-packaged Sumitomo metal-cutting solutions. Protect your automated production loops from premature flank failure, unexpected sizing shifts, and costly material scrap by running verified, authentic precision carbide profiles.\u003c\/p\u003e\n\u003c!-- Verified Global User Reviews Box Layout --\u003e\n\u003ch3 style=\"color: #333; font-size: 16px; margin-top: 20px; margin-bottom: 15px; font-weight: 600;\"\u003eVerified B2B Global Customer Reviews\u003c\/h3\u003e\n\u003cdiv style=\"display: block; margin-bottom: 30px;\"\u003e\n\u003cdiv style=\"border: 1px solid #E2E8F0; background: #F8FAFC; padding: 15px; border-radius: 6px; margin-bottom: 12px; box-sizing: border-box;\"\u003e\n\u003cdiv style=\"color: #ffc107; font-size: 14px; margin-bottom: 5px;\"\u003e★★★★★\u003c\/div\u003e\n\u003cp style=\"margin: 0 0 5px 0; font-weight: bold; font-size: 14px;\"\u003e\"The Absolute Benchmark for Carbon Steel Turning\"\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 10px 0; font-size: 12px; color: #666;\"\u003e- \u003cstrong\u003eDavid R.\u003c\/strong\u003e (Texas, USA)\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-size: 13px; color: #444;\"\u003e\"We run tight schedules turning 1045 steel pins. The AC820P grade holds its edge through extended cycles without chipping. The Absotech coating doesn't peel under heavy heat, which has cut our tooling changes down significantly.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #E2E8F0; background: #F8FAFC; padding: 15px; border-radius: 6px; margin-bottom: 12px; box-sizing: border-box;\"\u003e\n\u003cdiv style=\"color: #ffc107; font-size: 14px; margin-bottom: 5px;\"\u003e★★★★★\u003c\/div\u003e\n\u003cp style=\"margin: 0 0 5px 0; font-weight: bold; font-size: 14px;\"\u003e\"SU Profile Keeps Chip Management Under Perfect Control\"\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 10px 0; font-size: 12px; color: #666;\"\u003e- \u003cstrong\u003eMarkus S.\u003c\/strong\u003e (Stuttgart, Germany)\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-size: 13px; color: #444;\"\u003e\"At a 2mm depth of cut, stringy swarf can quickly become a headache on automated setups. The SU chipbreaker curtails this problem smoothly, forming clean 6-shapes that dump away without tangling the turret.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #E2E8F0; background: #F8FAFC; padding: 15px; border-radius: 6px; margin-bottom: 12px; box-sizing: border-box;\"\u003e\n\u003cdiv style=\"color: #ffc107; font-size: 14px; margin-bottom: 5px;\"\u003e★★★★☆\u003c\/div\u003e\n\u003cp style=\"margin: 0 0 5px 0; font-weight: bold; font-size: 14px;\"\u003e\"Highly Predictable Wear Paths for B2B Batches\"\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 10px 0; font-size: 12px; color: #666;\"\u003e- \u003cstrong\u003eGiovanni F.\u003c\/strong\u003e (Turin, Italy)\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-size: 13px; color: #444;\"\u003e\"Very uniform tool life metrics. The size shift tracking per index is completely linear. We can dial in our offset macros confidently across large volume batch cycles.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #E2E8F0; background: #F8FAFC; padding: 15px; border-radius: 6px; margin-bottom: 12px; box-sizing: border-box;\"\u003e\n\u003cdiv style=\"color: #ffc107; font-size: 14px; margin-bottom: 5px;\"\u003e★★★★★\u003c\/div\u003e\n\u003cp style=\"margin: 0 0 5px 0; font-weight: bold; font-size: 14px;\"\u003e\"コーティングの密着性が素晴らしい (Superb Coating Adhesion Quality)\"\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 10px 0; font-size: 12px; color: #666;\"\u003e- \u003cstrong\u003eTakashi O.\u003c\/strong\u003e (Saitama, Japan)\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-size: 13px; color: #444;\"\u003e\"Sumitomo’s Absotech Platinum technology lives up to the reputation. Even during aggressive high-speed steel removal passes, the coating face stays smooth, showing zero early flaking.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #E2E8F0; background: #F8FAFC; padding: 15px; border-radius: 6px; box-sizing: border-box;\"\u003e\n\u003cdiv style=\"color: #ffc107; font-size: 14px; margin-bottom: 5px;\"\u003e★★★★★\u003c\/div\u003e\n\u003cp style=\"margin: 0 0 5px 0; font-weight: bold; font-size: 14px;\"\u003e\"100% Original Industrial Supply Trace\"\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 10px 0; font-size: 12px; color: #666;\"\u003e- \u003cstrong\u003eIvan K.\u003c\/strong\u003e (Nizhny Novgorod, Russia)\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-size: 13px; color: #444;\"\u003e\"Genuine packaging box lineage verified. The index performance matches true factory specs, keeping our production free from counter-market failures.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- AI-Style FAQ --\u003e\n\u003ch2 style=\"color: #47479f; font-size: 20px; border-bottom: 2px solid #47479F; padding-bottom: 8px; margin-top: 30px; font-weight: 600;\"\u003e7. Generative Search \u0026amp; AI-Style Steel Turning FAQ\u003c\/h2\u003e\n\u003cdiv style=\"margin-bottom: 15px; font-size: 15px;\"\u003e\n\u003cp style=\"font-weight: bold; color: #47479f; margin-bottom: 4px;\"\u003eQ1: Can I use the AC820P insert for heavy interrupted lathe cuts?\u003c\/p\u003e\n\u003cp style=\"margin-top: 0; background-color: #f8f9fa; padding: 10px; border-left: 3px solid #47479F; border-radius: 4px;\"\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The \u003cstrong\u003eAC820P grade\u003c\/strong\u003e is optimized for continuous to light interrupted turning. For severe pounding, out-of-round castings, or structural keyways, we strongly advise swapping to the tougher \u003cstrong\u003eAC830P grade\u003c\/strong\u003e, which is specifically alloyed to absorb intense mechanical impacts without fracturing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 15px; font-size: 15px;\"\u003e\n\u003cp style=\"font-weight: bold; color: #47479f; margin-bottom: 4px;\"\u003eQ2: What is the optimal depth of cut ($a_p$) range for the SU chipbreaker?\u003c\/p\u003e\n\u003cp style=\"margin-top: 0; background-color: #f8f9fa; padding: 10px; border-left: 3px solid #47479F; border-radius: 4px;\"\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The \u003cstrong\u003eSU medium-turning profile\u003c\/strong\u003e performs best at cutting depths between $0.8\\,\\text{mm}$ and $4.0\\,\\text{mm}$. Within this range, the micro-groove land effectively curls and breaks structural carbon steel swarf into crisp chips, keeping the workpiece face free of scratching.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 15px; font-size: 15px;\"\u003e\n\u003cp style=\"font-weight: bold; color: #47479f; margin-bottom: 4px;\"\u003eQ3: How does Absotech Platinum coating help increase production efficiency?\u003c\/p\u003e\n\u003cp style=\"margin-top: 0; background-color: #f8f9fa; padding: 10px; border-left: 3px solid #47479F; border-radius: 4px;\"\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Sumitomo's proprietary \u003cstrong\u003eAbsotech Platinum\u003c\/strong\u003e process modifies the coating's residual stress profile, making the crystal boundary exceptionally smooth. This reduces frictional heat during high-speed cuts, suppressing edge adhesion and leading to more predictable tool lifespans.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Technical Verification Footnote Section --\u003e\n\u003cdiv style=\"margin-top: 40px; padding: 20px; background-color: #333333; color: #ffffff; border-radius: 6px; font-size: 13px;\"\u003e\n\u003ch4 style=\"margin-top: 0; color: #ffffff; text-transform: uppercase; font-size: 14px; letter-spacing: 1px;\"\u003eGrade Comparison, Troubleshooting, \u0026amp; Technical Specifications Footnote\u003c\/h4\u003e\n\u003cp style=\"margin-bottom: 10px;\"\u003e\u003cstrong\u003eGlobal Grade Equivalence Matrix:\u003c\/strong\u003e The Sumitomo AC820P SU configuration covers the same application window as Sandvik Coromant (GC4425 \/ PM profile), Kyocera (CA525 \/ MQ profile), Mitsubishi Materials (MC6125 \/ MP profile), Iscar (IC8250 \/ M3P profile), and ZCC.CT (YBC252 \/ PM profile).\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 10px;\"\u003e\u003cstrong\u003eWorkpiece Material Matrix Troubleshooting:\u003c\/strong\u003e If sudden edge chipping occurs during continuous runs, check your toolholder center-height alignment and ensure stable chucking pressure. If you notice early cratering, verify that your surface velocity ($V_c$) matches the recommended parameters and check that your flood coolant is hitting the cutting point directly.\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 10px;\"\u003e\u003cstrong\u003eVerified Data Validation Source:\u003c\/strong\u003e Recommended metal removal velocities, feed bounds, and thermal deformation curves are compiled from industrial databases in the *Machining Data Handbook (3rd Edition, Vol. 1)* and calibrated against engineering baselines in **ASTM E18 Standard Test Methods for Rockwell Hardness**.\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 0;\"\u003e\u003cstrong\u003eCertified Industry Standardization:\u003c\/strong\u003e Dimensions, geometry metrics, and structural tolerances conform strictly to the international framework established by **ISO 1832:2017 Indexable Inserts Designation Standard**. Tool lifecycles will adapt based on spindle rigidity, chucking stability, and component alloy variations.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Sumitomo","offers":[{"title":"Default Title","offer_id":43400906703020,"sku":"WNMG080408N-SU AC820P","price":76.23,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/sumitomo-wnmg080408n-su-ac820p-carbide-turning-insert-su-chipbreaker-front.jpg?v=1784795213","url":"https:\/\/cnchome-beyond.com\/products\/sumitomo-wnmg080408n-su-ac820p-carbide-insert-steel-turning","provider":"CNCHome-Beyond","version":"1.0","type":"link"}