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Carbide Threading Mill for Stainless Steel

Machining stainless steel presents unique challenges that demand cutting tools of exceptional quality. Standard tools often struggle with stainless steel's high work hardening rate and toughness, leading to premature wear, poor surface finishes, and inefficient production cycles. To overcome these obstacles and achieve superior thread quality with maximum efficiency, a specialized tool is essential. The Carbide Threading Mill for Stainless Steel is engineered specifically for this demanding application. Utilizing premium micro-grain carbide substrates and advanced geometries, this threading mill delivers the necessary hardness, wear resistance, and thermal stability to cut through tough stainless steel alloys consistently. For applications requiring the ultimate in precision and longevity, our High-precision PCD Threading Mill offers an unparalleled solution, ideal for finishing operations on non-ferrous materials or composites where surface integrity is critical. When tool life is the primary concern in abrasive environments, the Wear-resistant PCD Threading Mill provides exceptional durability. Furthermore, our portfolio includes specialized tools for various thread profiles, such as the Carbide Fine Thread Threading Mill for delicate, high-precision threads and the robust Carbide Coarse Thread Threading Mill designed for heavy-duty threading tasks.


The core advantage of the Carbide Threading Mill for Stainless Steel lies in its optimized design parameters that directly address the material's machining characteristics. The tool features a reinforced core and a variable helix angle, which effectively dampens vibrations and minimizes chatter—a common issue when threading stainless steel. This results in significantly improved thread surface finish and dimensional accuracy. The specific rake and clearance angles are calibrated to produce a shearing cut that reduces cutting forces and prevents material adhesion or built-up edge. By controlling heat generation and promoting efficient chip evacuation, the Carbide Threading Mill for Stainless Steel maintains its cutting edge integrity over extended periods, enabling higher feed rates and longer uninterrupted machining runs compared to conventional tools.

Key Specifications & Technical Data

  • Material: Premium Micro-grain Carbide (Grade K30-K40)
  • Coating: Multi-layer PVD AlTiN (Optional TiCN, AlCrN)
  • Shank Tolerance: h6
  • Operating Temperature: Up to 800°C (1472°F)
  • Primary Application: Austenitic (304, 316), Duplex, and Martensitic Stainless Steels
  • Compatible Machine: CNC Machining Centers, Thread Milling Machines
Thread Size Range (Metric) Shank Diameter (mm) Overall Length (mm) Flute Count Recommended Cutting Speed Vc (m/min) Recommended Feed per Tooth (mm)
M3 - M12 6, 8, 10 60 - 85 4 60 - 90 0.015 - 0.035
M12 - M24 10, 12, 16 85 - 120 4 - 6 50 - 80 0.025 - 0.06
M24 - M48 16, 20, 25 120 - 160 6 - 8 40 - 70 0.04 - 0.10
1/4" - 1" (UNC/UNF) 10, 12, 16, 20 75 - 140 4 - 6 50 - 85 0.020 - 0.070

Optimal Machining Parameters for Common Stainless Steels

Stainless Steel Grade Hardness (HB) Cutting Speed Vc (m/min) Feed per Tooth fz (mm) Coolant Recommendation
304 / 304L 150 - 200 70 - 90 0.02 - 0.05 Emulsion or Mist (High Pressure)
316 / 316L 150 - 200 60 - 80 0.02 - 0.045 Emulsion or Mist (High Pressure)
Duplex 2205 280 - 320 50 - 70 0.015 - 0.035 Neat Oil or High-Pressure Emulsion
17-4 PH (H900) 380 - 450 40 - 60 0.01 - 0.025 Neat Oil Preferred

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