ZCC.CT RT16.01N-AG55PB YBG205 Carbide Insert – 55° Full Profile BSP Internal Thread
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RT16.01N-AG55PB YBG205 Threading Insert
High-Performance Nano-PVD Solution for 55° Internal Whitworth & Pipe Threads
Product Overview
"How can I achieve stable tool life and clean surface finishes when cutting 55° internal pipe threads in gummy stainless steel or heat-resistant alloys?"
The ZCC.CT RT16.01N-AG55PB YBG205 is a premium internal threading insert featuring a 55° Partial Profile (AG55). The "AG" designation indicates an extended pitch range, allowing one insert to handle various 55-degree Whitworth (BSW) and British Standard Pipe (BSPP/G) thread sizes.
Engineered with the YBG205 Grade, this insert features an advanced nano-structured TiAlN PVD coating. It is specifically designed for Stainless Steel (M) and Superalloys (S), where superior heat resistance and edge sharpness are required to prevent built-up edge (BUE) and thermal cracking.
Key Features
- YBG205 Nano-PVD Coating: Offers exceptional hardness and thermal stability, making it the industry standard for machining tough stainless steel (304, 316, Duplex).
- Wide Range AG55 Profile: Versatile enough to cut multiple 55° Whitworth pitches with a single insert, optimizing tool management and cost-per-part.
- Internal Geometry Optimization: Designed for internal boring bars to ensure stable cutting and efficient chip evacuation in tight internal diameters.
- Superior Edge Toughness: Resists micro-chipping even under the heat-intensive conditions of machining high-alloy steels and superalloys.
Technical Specifications
| Parameter | Specification |
|---|---|
| Thread Profile | 55° Whitworth / BSPP (Internal) |
| Pitch Range (AG55) | 0.5 - 3.0 mm / 48 - 8 TPI |
| Insert Size (I.C.) | 16 (9.525 mm) |
| Grade / Coating | YBG205 / Nano-PVD |
| Primary Material | Stainless Steel (M) / Superalloys (S) |
Standard ISO compatible. Best paired with SNR 0016 R16, SNR 0020 R16, or SNR 0025 S16.
Shop SNR Internal Threading Boring Bars →
Typical Applications
- Internal 55° Whitworth (BSW) and Gas (BSPP/G) threads.
- Excellent for Stainless Steel valves, couplings, and adapters.
- Ideal for Marine, Food Processing, and Oil & Gas components.
- Precision boring and threading in aerospace-grade materials.
The YBG205 Advantage
The YBG205 grade is ZCC.CT's ultimate solution for high-temperature and gummy materials. Its nano-structured coating creates a thermal barrier that protects the substrate, significantly extending tool life compared to standard PVD grades when machining 300-series stainless steel.
Verified User Performance
"The YBG205 grade is a game changer for our 316 stainless pipe fittings. No more edge build-up or messy threads."
— Derek S., UK"Very versatile insert. The AG55 profile covers all our British standard internal work with perfect accuracy."
— Alan J., Australia
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.