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Global 企业标准 SPEC340 不锈钢弹簧 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: SPEC340 / SPEC 340
Category Grade Standard Region/Area Standard Content
Metals SPEC 340 -- Global 不锈钢弹簧

Chemical composition(mass fraction)(wt.%) of the SPEC 340

Element Min Max Similar

Mechanical Properties of steel grade SPEC 340

Yield
Rp0.2 (MPa)
Tensile
Rm (MPa)
Impact
KV/Ku (J)
Elongation
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
339 (≥) 967 (≥) 33 41 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 342

Physical Properties of steel grade SPEC 340

Temperature
(°C)
Modulus of elasticity
(GPa)
Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)
Specific thermal capacity
(J/kg·°C)
Specific electrical resistivity
(Ω mm²/m)
Density
(kg/dm³)
Poisson’s coefficient, ν
23 - -     0.24 -  
578 642 - 41.3 113   -  
436 - 12 33.2   413 213

Heat Treatment of steel grade SPEC 340

Heat treated : 1199°C - 1866°C

Technological Curves of steel grade SPEC 340

Cross Reference Table (Equivalent Grade) of SPEC 340

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