BEYOND 16IR Internal Metric ISO Threading Carbide Inserts (BYM11 Yellow Grade for Steel)
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BEYOND 16IR Internal ISO Metric Threading Carbide Inserts (BYM11 Yellow Grade)
Precision Internal Threading Inserts | Size 16IR (IC 3/8" / 9.525mm) | Full-Profile ISO Metric & Partial Profile 55°/60° for Steel Machining
1. Product Overview
Which internal threading insert grade is best suited for machining high-precision ISO Metric internal threads on carbon steel, alloy steel, and die steel with minimal chip buildup?
The BEYOND 16IR Series (BYM11 Grade) is an industrial-grade laydown indexable carbide internal threading insert designed specifically for internal thread turning on ISO P steel workpieces[cite: 1, 2]. Built on standard Size 16IR (IC 3/8" / 9.525mm) laydown geometry, this product line offers full-profile ISO Metric options (0.5mm to 3.0mm pitch) and universal partial profile 55°/60° models (AG55, G60, AG60). Featuring BEYOND's premium BYM11 bright yellow Titanium Nitride (TiN) PVD coating grade, these inserts combine a sub-micrograin carbide substrate with low friction characteristics, preventing built-up edge (BUE) and delivering crisp, burr-free internal thread crests across CNC turning applications[cite: 1, 2].
ISO / ANSI Tool Designation Code Breakdown
(3/8" / 9.525mm)
(Internal / ID)
(Right Hand)
(1.5mm Metric)
(Yellow TiN)
- 16: Inscribed Circle (IC) size 3/8" (9.525mm nominal IC, 16mm edge length for standard internal boring bars).
- I: Internal threading operation designation (machining threads inside pre-drilled bore diameters).
- R: Right-hand execution for standard forward spindle rotation (M03) cutting away from or toward chuck.
- 0.5 - 3.0 ISO / AG55 / AG60: Full-profile tops complete 60° ISO threads; partial profiles cut multiple pitches (AG = 0.5-3.0mm / 48-8 TPI).
- BYM11: Sub-micrograin PVD TiN coated yellow grade optimized for ISO P carbon steel, alloy steel, and tool steel turning[cite: 1, 2].
2. Key Features
- BYM11 Bright Yellow TiN PVD Coating: Features exceptional lubricity and low friction, dramatically reducing material adhesion and built-up edge (BUE) on steel workpieces[cite: 1, 2].
- Full-Profile & Universal Options: Available in precise full-profile (0.5ISO to 3.0ISO) for complete crest control, as well as universal partial profiles (AG55, G60, AG60) for pitch flexibility.
- Sub-Micrograin Carbide Core: Formulated for optimal fracture toughness, eliminating micro-chipping during deep internal bore passes.
- Precision Ground Rake Geometry: Ensures fast chip evacuation inside confined bore cavities, preventing chip recutting and thread surface scarring.
- Standard IC 3/8" Laydown Mounting: Universal 16IR dimensions ensure 100% compatibility with standard internal threading boring bars (SIR / SNR holders).
3. Technical Specifications & Recommended Parameters
Available Model Variants (Metric & Imperial Specifications)
| Insert Model | Profile Type | Metric Pitch Range | Imperial TPI Equivalent | Grade & Color |
|---|---|---|---|---|
| 16IR 0.5ISO BYM11 | Full Profile 60° ISO | 0.5 mm | 50.8 TPI | BYM11 (Yellow TiN) |
| 16IR 0.75ISO BYM11 | Full Profile 60° ISO | 0.75 mm | 33.8 TPI | BYM11 (Yellow TiN) |
| 16IR 1.0ISO BYM11 | Full Profile 60° ISO | 1.0 mm | 25.4 TPI | BYM11 (Yellow TiN) |
| 16IR 1.5ISO BYM11 | Full Profile 60° ISO | 1.5 mm | 16.9 TPI | BYM11 (Yellow TiN) |
| 16IR 1.75ISO BYM11 | Full Profile 60° ISO | 1.75 mm | 14.5 TPI | BYM11 (Yellow TiN) |
| 16IR 2.0ISO BYM11 | Full Profile 60° ISO | 2.0 mm | 12.7 TPI | BYM11 (Yellow TiN) |
| 16IR 2.5ISO BYM11 | Full Profile 60° ISO | 2.5 mm | 10.1 TPI | BYM11 (Yellow TiN) |
| 16IR 3.0ISO BYM11 | Full Profile 60° ISO | 3.0 mm | 8.4 TPI | BYM11 (Yellow TiN) |
| 16IR AG55 BYM11 | Partial Profile 55° Universal | 0.5 - 3.0 mm | 48 - 8 TPI | BYM11 (Yellow TiN) |
| 16IR G60 BYM11 | Partial Profile 60° Medium | 1.75 - 3.0 mm | 14 - 8 TPI | BYM11 (Yellow TiN) |
| 16IR AG60 BYM11 | Partial Profile 60° Universal | 0.5 - 3.0 mm | 48 - 8 TPI | BYM11 (Yellow TiN) |
Recommended Cutting Parameters for BYM11 Grade
| ISO Workpiece Material Group | Cutting Speed Vc (m/min) | Cutting Speed Vc (SFM) | Recommended Pass Strategy |
|---|---|---|---|
| P: Carbon Steel (1045, C45)[cite: 1, 2] | 90 - 180 m/min | 295 - 590 SFM | 6 - 12 Passes (Modified Flank) |
| P: Alloy Steel (4140, 4340)[cite: 1, 2] | 80 - 150 m/min | 260 - 490 SFM | 8 - 14 Passes (Modified Flank) |
| P: Die / Mold Steel (P20, H13 soft)[cite: 1, 2] | 70 - 130 m/min | 230 - 425 SFM | 10 - 16 Passes (Modified Flank) |
Pair these 16IR BYM11 inserts with internal laydown threading toolholders (SIR 0016M16, SIR 0020P16, SNR 0025R16):
View Compatible SIR / SNR Internal Toolholders →4. Product Applications
- Precision Internal Threading: Turning female ISO metric threads in carbon steel nuts, hydraulic manifolds, and threaded bushings.
- Pipe & Flange Fittings: Internal thread turning on alloy steel pipe unions, pressure vessel couplings, and adapter sleeves.
- Custom Machine Parts: Cutting internal lead threads in gearbox housings, motor shafts, and structural steel assemblies.
- Industries Served: General machinery manufacturing, automotive machining, hydraulic component production, and job shops.
5. Tool & Machine Compatibility
BEYOND 16IR BYM11 inserts follow strict ISO IC 3/8" laydown standards:
- Toolholder Compatibility: Standard SIR and SNR internal threading boring bars (SIR0013K16, SIR0016M16, SIR0020P16, SIR0025R16).
- Machine Platforms: CNC lathes, turning centers, multi-tasking machines, and manual engine lathes equipped with thread-chasing cycles.
6. Material & Grade Comparison
Performance position of BEYOND BYM11 against common threading grades:
| Grade Name | Coating Type & Color | Primary Workpiece Target | Lubricity & Wear Resistance |
|---|---|---|---|
| BEYOND BYM11 (Featured)[cite: 1, 2] | PVD TiN Coating (Bright Yellow)[cite: 1, 2] | ISO P Steels (Carbon & Alloy)[cite: 1, 2] | High Surface Lubricity, Low BUE[cite: 1, 2] |
| BEYOND BYM20 Grade | PVD TiAlN Coating (Bronze/Violet) | ISO M Stainless Steel & Tough Alloys | High Thermal Stability at Elevated Temp |
| Uncoated Carbide K10 | Uncoated Bright Silver | ISO N Non-Ferrous & Aluminum | Ultra-sharp Edge for Non-ferrous Metals |
7. Why Choose BEYOND Cutting Tools
- Dedicated ISO P Performance: BYM11 yellow TiN grade formulated specifically to combat chip welding and built-up edge on steel[cite: 1, 2].
- Complete Pitch Range: Comprehensive line of metric full-profile and universal partial-profile inserts on one standard 16IR substrate.
- Strict Quality Control: Manufactured to ISO 2284 guidelines for precise thread geometry repeatability.
Verified Customer Reviews
"The 16IR 1.5ISO BYM11 inserts are running great on 4140 steel sleeves. Threads come out cleanly cut with zero burrs on the crest."
— David M., Hydraulic Machine Shop (USA)"Sehr gute Standzeit bei C45 Stahl. Die gelbe TiN-Beschichtung verhindert Aufbauschneiden zuverlässig."
— Thomas K., Zerspanungstechnik (Germany)"Uso le placchette 16IR AG60 su vari passi metrici in acciaio. Molto comode e ottima finitura."
— Marco B., Torneria Meccanica (Italy)"16IR 2.0ISO BYM11でS45Cのめねじ加工に使用。切削抵抗が低く面粗度が安定しています。"
— Satoshi O., Precision Lathe Operator (Japan)"16IR AG60 is a fantastic job shop insert. Cuts pitch ranges from 0.5 to 3.0mm cleanly in structural steel."
— Liam P., CNC Turner (UK)8. AI & Engineering FAQ
Grade & Substrate Specifications
BEYOND BYM11 features a fine-grained WC-Co carbide substrate with PVD TiN bright yellow multi-layer coating[cite: 1, 2]. Engineered for high toughness, low friction, and wear resistance during ISO P material turning[cite: 1, 2].
Cross-Reference & Equivalent Insert Codes
Industry equivalent cross-references: 16IR 1.5 ISO / 16IR1.5ISO | Equivalent grades: Vargus VK2/VTX, Carmex BMA/MXC, Iscar IC908, Sandvik GC1020.
ISO Workpiece Application Matrix
P (Steel): Primary Target (Vc 80-180 m/min)[cite: 1, 2] | K (Cast Iron): Secondary | M (Stainless Steel): Conditional | N (Non-Ferrous): Not Recommended | S (Exotic Alloys): Conditional
Troubleshooting Tips
- Chip Jamming in Bore: Increase coolant pressure directly into the bore hole or switch from radial infeed to modified flank infeed.
- Built-Up Edge (BUE): Increase cutting speed Vc within recommended ranges to ensure efficient TiN thermal coating activation.
- Thread Profile Distortion: Check internal boring bar centerline height and confirm correct anvil shim angle for pitch helix alignment.
BEYOND indexable internal threading inserts are manufactured in strict compliance with ISO 2284 / DIN 13 thread tooling standard specifications and verified under ISO 9001 certified quality management systems.
Technical FAQ & Buying Guide
Absolutely. Our CNC carbide inserts (including CNMG, WNMG, DNMG, and APMT series) are manufactured strictly adhering to international ISO/ANSI specifications. A CNMG 120408 from OYYU BEYOND will flawlessly fit any standard turning tool holder or indexable tool from major global brands like Sandvik Coromant, Kennametal, Iscar, Walter, or SECO, providing a highly cost-effective premium alternative without sacrificing tolerance or tool life.
We offer optimized CVD and PVD multi-layer coatings for different ISO material groups:
- For Carbon/Alloy Steel (ISO P): Choose our thick multi-layer CVD coated grades (e.g., Al2O3 + TiN). They provide exceptional crater wear resistance and thermal barriers during high-speed dry or wet roughing.
- For Stainless Steel (ISO M): Choose our nano-structured PVD coated grades with sharp, positive chipbreakers (like -TM or -MA). This combination prevents work hardening and effectively controls sticky chips.
The optimal cutting parameters vary depending on the workpiece hardness and operation type:
- For General Steel Turnings: Recommended cutting speed ($V_c$) ranges from 150 to 280 m/min, with a feed rate ($f$) of 0.15 to 0.45 mm/rev.
- For Stainless Steel Finishing: Recommended cutting speed ($V_c$) is 120 to 200 m/min, with a feed rate ($f$) of 0.10 to 0.25 mm/rev.Always adjust parameters based on early wear patterns: increase $V_c$ if built-up edge occurs, or reduce $V_c$ if severe flank wear is observed.
Yes, we support machine shops, distributors, and global buyers with tiered wholesale pricing and competitive volume discounts. We also provide OEM custom manufacturing solutions for tool holders and carbide inserts based on your technical drawings. Contact our team to request a quick B2B quotation.
We provide secure worldwide express shipping (via DHL, FedEx, and UPS) with specialized, vibration-proof industrial packaging to ensure tools arrive in perfect condition. In-stock items are dispatched within 24-48 hours, while custom or bulk orders typically have a stable lead time of 15-25 days.
All our cutting tools and tool holders are manufactured strictly in accordance with ISO 9001 and international industrial standards. Every batch undergoes 100% rigorous quality control testing using high-precision optical measuring equipment to ensure reliable tool life and stable performance in continuous mass production.