- Steel Grade: AISI 4340
- Standard: AISI
- Dimensions: Dia 16 to Dia 300
- Place of Origin: Japan
- Brand Name: Nickel Chrome High Tensile Steel
- Model Number: 4340 steel
- Application: Tool Steel Bar
- Alloy Or Not: Is Alloy
- Special Use: Mold Steel
- Type: Alloy Steel Bar
Packaging & Delivery
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|Delivery Detail:||between 7 days upon receive TT|
Specifications4340 is a 1.8% nickel - chromium - molybdenum high hardenability high tensile steel
4340 High Tensile Steel
4340 is a 1.8% nickel - chromium - molybdenum high hardenability high tensile steel - generally
supplied hardened and tempered in the tensile range of 930 - 1080 Mpa (condition U) - (Rc 28 - 36)..
Characterised by high strength and toughness in relatively large sections.
Pre hardened and tempered 4340 can be further surface hardened by flame or induction hardening
and by nitriding.
4340 is used in most industry sectors for applications requiring higher tensile/yield strength than
4140 can provide.
Typical applications are: Heavy Duty Shafts, Gears, Axles, Spindles, Couplings, Pins etc.
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