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Stainless Steel - Grade 420C / 1.4034

Description

420C / 1.4034,is a martensitic stainless steel known for its high hardness, wear resistance, and moderate corrosion resistance. It is commonly used in applications requiring good mechanical properties and resistance to wear and tear.

Chemical Composition

The chemical composition of 420C stainless steel is as follows:

Element Composition (%)
Carbon (C) 0.43 - 0.50
Silicon (Si) 1.00 max
Manganese (Mn) 1.00 max
Phosphorus (P) 0.040 max
Sulfur (S) 0.030 max
Chromium (Cr) 12.50 - 14.50

Mechanical Properties

The mechanical properties of 420C include:

  • Hardness: 54 - 60 HRC
  • Ultimate Tensile Strength: 1700 - 1900 MPa
  • Yield Strength: 650 - 800 MPa (varies with heat treatment)
  • Elongation (A5): Minimum 7% (depending on size)

    • Thermal & Physical Properties

  • Specific Heat: 7.73 g/cm³/li>
  • Maximum Working Temperature: 400 °C
  • Magnetism: Magnetic

    • Other Designations

    420C is also known by various designations, including:

  • DIN: 1.4034
  • EN: X46Cr13
  • AISI: 420C
  • JS: SUS420J2

    • Fabrication and Heat Treatment

  • Heat Treatment: 420C / 1.4034 can be quenched and tempered to enhance its mechanical properties. Typical heat treatment involves heating to 950-1050 °C followed by quenching in oil or air and tempering at 650-700 °C.

    • Applications

    420C / 1.4034 is widely used in:

  • Special bearings
  • Anti-friction bearings
  • Valves and pumps
  • Lighters
  • Ballpoint pens
  • Automotive components

    • Supplied Forms

    420C / 1.4034 stainless steel is typically supplied in the form of:

  • Balls (3.00 mm to 76.20 mm)
  • Bars
  • Sheets

    • Features

  • Excellent hardness and wear resistance
  • Good corrosion resistance in specific environments
  • Suitable for high-stress applications

    • This datasheet provides a comprehensive overview of the 420C / 1.4034 grade, highlighting its key properties and applications relevant to various industries.

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