440C Stainless Steel Bar

440C stainless steel is a high carbon type of stainless, this is the alloy most often used for knife-making. Can be heat treated for high strength and hardness. 440C stainless steel has greater abrasion and wear resistance for use in bearing and bushing applications. Corrosion resistant only in the hardened condition.

Applications:

  • Ball bearings and races
  • Nozzles
  • Knives and measuring instruments
  • Surgical tools
  • Valves

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Specification
Manufacture Method
Grade
Diameter

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SKU Description Manufacture Method Diameter Shape Specification
Sku: A4362 Description: 440C Cond A AMS5630 1.0625" DIA Manufacture Method: HOT ROLLED ANNEALED & PICKLED Diameter: 1.0625 Shape: STEEL ROD/BAR ROUND Specification: AMS 5630 AMS-QQS-763
Sku: A4361 Description: 440C Cond A AMS5630 .9375" DIA Manufacture Method: HOT ROLLED ANNEALED & PICKLED Diameter: 0.9375 Shape: STEEL ROD/BAR ROUND Specification: AMS 5630 AMS-QQS-763
Sku: A4357 Description: 440C Cond A AMS5630 .5625" DIA Manufacture Method: HOT ROLLED ANNEALED & PICKLED Diameter: 0.5625 Shape: STEEL ROD/BAR ROUND Specification: AMS 5630 AMS-QQS-763
Sku: 89481 Description: 440C Cond A AMS5630 1.250" DIA Manufacture Method: HOT ROLLED ANNEALED & PICKLED Diameter: 1.2500 Shape: STEEL ROD/BAR ROUND Specification: AMS 5630 AMS-QQS-763
Sku: 89465 Description: 440C Cond A AMS5630 1.00" DIA Manufacture Method: HOT ROLLED ANNEALED & PICKLED Diameter: 1.0000 Shape: STEEL ROD/BAR ROUND Specification: AMS 5630 AMS-QQS-763
Sku: 89482 Description: 440C Cond A AMS5630 1.50" DIA Manufacture Method: HOT ROLLED ANNEALED & PICKLED Diameter: 1.5000 Shape: STEEL ROD/BAR ROUND Specification: AMS 5630 AMS-QQS-763
Sku: 81728 Description: 440C COND A AMS 5630 .500" DIA Manufacture Method: NOT REQUIRED Diameter: 0.5000 Shape: STEEL ROD/BAR ROUND Specification: AMS5630 L ASTM A276 16
Sku: A4363 Description: 440C Cond A AMS5630 1.1250" DIA Manufacture Method: HOT ROLLED ANNEALED & PICKLED Diameter: 1.1250 Shape: STEEL ROD/BAR ROUND Specification: AMS 5630 AMS-QQS-763
Sku: 89532 Description: 440C Cond A AMS5630 2.0"DIA Manufacture Method: HOT ROLLED ANNEALED & PICKLED Diameter: 2.0000 Shape: STEEL ROD/BAR ROUND Specification: AMS 5630 AMS-QQS-763
Sku: 89534 Description: 440C Cond A AMS5630 2.25" DIA Manufacture Method: HOT ROLLED ANNEALED & PICKLED Diameter: 2.2500 Shape: STEEL ROD/BAR ROUND Specification: AMS 5630 AMS-QQS-763

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Grade 440C ss is a high carbon martensitic stainless with moderate corrosion resistance good strength, and the ability to obtain and hold excellent hardness (Rc 60) and wear resistance. 440C stainless steel is considered to be slightly cold workable by common practices and does respond to heat treatment.

Chemistry
440C Stainless
Nickel (Ni) .75%
Molybdenum .75%
Copper (Cu) .5%
Manganese 1% max
Iron (Fe) Balance
Carbon (C) .95 – 1.2%
Chromium (Cr) 16 – 18%
Manganese (Mn) 1% max
Phosphorus (P) 0.04% max
Sulphur (S) 0.03% max
Silicon (Si) 1% max