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Quick Details

  • Steel Grade: 420
  • Standard: AISI, ASTM, BS, DIN
  • Dimensions: 10mm to 1000mm
  • Place of Origin: Maharashtra, India
  • Brand Name: AISI 420
  • Technique: Hot Rolled
  • Application: GENERAL
  • Alloy Or Not: Non-alloy
  • Special Use: Cold Heading Steel

Packaging & Delivery

Packaging Details container or wooden box
Delivery Time 30 days max.


AISI 420AMS 5506AMS 5621ASTM A276ASTM A314ASTM A473ASTM A580DIN 1.4007DIN 1.4021QQ S763

Principal Design Features This alloy is a general purpose heat treatable chromium steel which is a popular cutlery grade.

Applications Dental and surgical instruments, cutlery, pump shafts, plastic molds and dies, steel balls, and various hand tools.

Machinability Similar to machining some of the high carbon tool steel, this alloy has tough, stringy chip build-up.

Welding Not commonly welded due to its air hardening characteristics. Welding may be performed after preheating to 300-400 F (149-204 C) with post weld tempering at temperature for 2 hours . Filler metal should be AWS E/ER420.

Hot Working Bring temperatures slowly up to 1400 F (760 C), then on to 2000-2200 F (1097-1204 C), after working, furnace cool slowly to avoid cracking. Reheat often to keep the working temperature above 1600 F.

Cold Working 420 will withstand only minor cold work. Radical forming operations will result in cracking.


Hardening Soak at 1850-1950 F (1010-1066 C) at quench in heated oil.
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