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40cr 20crmnti
Car,Automobile, machine tool, aviation, mould
1 Box- 1 P
CNC Tool
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Stainless Steel Taps for High-Strength Alloys are corrosion-resistant tools engineered for threading nickel-based super alloys (Inconel 718), titanium alloys (Ti-6Al-4V), and duplex stainless steel (2205). Their 420 stainless steel body (HRC 50–52) undergoes passivation treatment (ASTM A967 Type II) to enhance corrosion resistance, forming a chromium oxide layer (20–30nm thick) that withstands 500+ hours of salt spray testing (ASTM B117). The variable pitch flute design (1.2×–1.5× thread pitch) is optimized via computational fluid dynamics (CFD) simulations to minimize work-hardening in high-strength materials with tensile strengths exceeding 1000 MPa.
Stainless Steel Material: 420 martensitic stainless steel provides resistance to salt spray (500+ hours per ASTM B117) and chemical exposure in industrial environments (pH 4–10). It maintains hardness up to 300°C, suitable for high-temperature machining applications.
Enhanced Cutting Geometry: 3-flute design with 30° helix angle and polished flutes (Ra 0.4μm) for efficient chip removal in Inconel 718. The flute root radius (0.5mm) reduces stress concentration, while the relief angle (8°) minimizes flank wear, reducing thread galling by 40% compared to standard taps.
Heat-Resistant Coating: Optional TiN coating (450°C max service temperature) applied via physical vapor deposition (PVD) increases surface hardness to 2800 HV, extending tool life in high-temperature machining of nickel alloys by 25–30%.
Critical applications include aerospace turbine components (titanium blades with tensile strength 900–1100 MPa), nuclear reactor fasteners (duplex stainless steel 2205 with PREN ≥35), and oilfield downhole tools (Inconel 718 for sour service environments). It meets aerospace standards (SAE AS9100) for thread quality and is certified for use in NORSOK M-630 offshore applications.
Q: What coolant is recommended for titanium alloys?
A: Water-soluble synthetic coolants with EP additives (chlorine-free) at 8–10% concentration. Maintain coolant temperature ≤35°C to prevent titanium hydride formation.
Q: Can it thread Hastelloy C276?
A: Yes, with reduced speed (3–5 m/min) and incremental depth of cut (0.5mm per pass). Use sulfurized mineral oil coolant to manage work-hardening in this nickel-molybdenum alloy.
Q: What is the thread tolerance class?
A: Produces Class 3B threads in imperial (UN/UNF) or 4H in metric (ISO), suitable for critical aerospace applications requiring leak-tight joints or fatigue resistance.
Stainless Steel Taps for High-Strength Alloys are corrosion-resistant tools engineered for threading nickel-based super alloys (Inconel 718), titanium alloys (Ti-6Al-4V), and duplex stainless steel (2205). Their 420 stainless steel body (HRC 50–52) undergoes passivation treatment (ASTM A967 Type II) to enhance corrosion resistance, forming a chromium oxide layer (20–30nm thick) that withstands 500+ hours of salt spray testing (ASTM B117). The variable pitch flute design (1.2×–1.5× thread pitch) is optimized via computational fluid dynamics (CFD) simulations to minimize work-hardening in high-strength materials with tensile strengths exceeding 1000 MPa.
Stainless Steel Material: 420 martensitic stainless steel provides resistance to salt spray (500+ hours per ASTM B117) and chemical exposure in industrial environments (pH 4–10). It maintains hardness up to 300°C, suitable for high-temperature machining applications.
Enhanced Cutting Geometry: 3-flute design with 30° helix angle and polished flutes (Ra 0.4μm) for efficient chip removal in Inconel 718. The flute root radius (0.5mm) reduces stress concentration, while the relief angle (8°) minimizes flank wear, reducing thread galling by 40% compared to standard taps.
Heat-Resistant Coating: Optional TiN coating (450°C max service temperature) applied via physical vapor deposition (PVD) increases surface hardness to 2800 HV, extending tool life in high-temperature machining of nickel alloys by 25–30%.
Critical applications include aerospace turbine components (titanium blades with tensile strength 900–1100 MPa), nuclear reactor fasteners (duplex stainless steel 2205 with PREN ≥35), and oilfield downhole tools (Inconel 718 for sour service environments). It meets aerospace standards (SAE AS9100) for thread quality and is certified for use in NORSOK M-630 offshore applications.
Q: What coolant is recommended for titanium alloys?
A: Water-soluble synthetic coolants with EP additives (chlorine-free) at 8–10% concentration. Maintain coolant temperature ≤35°C to prevent titanium hydride formation.
Q: Can it thread Hastelloy C276?
A: Yes, with reduced speed (3–5 m/min) and incremental depth of cut (0.5mm per pass). Use sulfurized mineral oil coolant to manage work-hardening in this nickel-molybdenum alloy.
Q: What is the thread tolerance class?
A: Produces Class 3B threads in imperial (UN/UNF) or 4H in metric (ISO), suitable for critical aerospace applications requiring leak-tight joints or fatigue resistance.
