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440C Stainless Steel for Custom Parts

440C is a high-carbon martensitic stainless steel known for strength, hardness, and wear resistance. Heat treatment can further increase hardness. It is used for bearing housings, surgical instruments, and components with demanding wear requirements.

  • High hardness
  • Wear resistant
  • Heat treatable
CNC machined Stainless Steel part 1

440C Stainless Steel Overview

440C is a high-carbon martensitic stainless steel known for strength, hardness, and wear resistance. Heat treatment can further increase hardness. It is used for bearing housings, surgical instruments, and components with demanding wear requirements.

  • High hardness: 440C delivers high hardness for demanding parts.
  • Wear resistant: Its wear resistance suits bearing and tooling components.
  • Heat treatable: Heat treatment can further increase hardness.

Selection note: 440C is selected for hard, wear-resistant components such as bearings and surgical instruments.

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Manufacturing Processes for 440C Stainless Steel

CNC machined Stainless Steel part 1

440C CNC Machining

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440C Stainless Steel Material Specifications

Mechanical Properties

Tensile strength, yield450–1900 MPa
Fatigue strength275 MPa
Elongation at break10–20 %
Hardness285–600 Brinell

Physical Properties

Density7.75 g/cm³

440C Stainless Steel Manufacturing Facilities

440C Stainless Steel FAQs

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