Product Description
4340 hot rolled alloy structural steel plate
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
 Chemical analysis of 4340 steel
C |
Si |
Mn |
P≤ |
S≤ |
Cr |
Ni≤ |
Mo |
0.37~0.45 |
0.10~0.35 |
0.55~0.90 |
  0.025    |
  0.025    |
0.65~0.95 |
2.00 |
0.20~0.35 |
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FAQ:
Q: What kind of work does your company do?
A:Â Â Our company supplies different kinds of products like steel pipe, steel plate, steel sheet .
Q: How can you assure your quality?
A:We can provide you certificate of quality accordingly.
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Q: Can you accept customization?
A:Yes. If you have special requirements for products, styles or specifications, we can make them for you
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Q:Can you accept trail orders?
A:Our MOQ is 1 ton.But if you want to place a trail order as the beginning of ourcooperation , we can accept smaller quantity at frist . Surely we will have further and longer partnership after the beginning.
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Q:Can you provide samples for checking before order?
A:Free samples can be provided as you required. You need only to bear the freight cost.
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Yuhuan Jiaodu Valve Co., Ltd. , http://www.tz-valve.com