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France AFNOR NF S355ML 热轧结构钢产品 - 交货技术条件第4部分:热机械轧制可焊接细晶粒结构钢 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: S355ML / S 355 ML
Category Grade Standard Region/Area Standard Content
Metals S 355 ML NF EN 10025-4 France 热轧结构钢产品 - 交货技术条件第4部分:热机械轧制可焊接细晶粒结构钢

Chemical composition(mass fraction)(wt.%) of the S 355 ML

Element Min Max Similar
V - 0.1200 -
Ti - 0.0600 -
Si - 0.5500 -
S - 0.0250 -
P - 0.0300 -
Ni - 0.5500 -
Nb - 0.0600 -
N - 0.0170 -
Mo - 0.1300 -
Mn - 1.7000 -
Cu - 0.6000 -
Cr - 0.3500 -
CEV - 0.3900 -
C - 0.1600 -
Al 0.0150 - -

Mechanical Properties of steel grade S 355 ML

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)
972 (≥) 544 (≥) 31 33 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 314

Physical Properties of steel grade S 355 ML

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
12 - -     0.31 -  
511 695 - 14.3 341   -  
785 - 42 41.2   413 244

Heat Treatment of steel grade S 355 ML

Heat treated : 1548°C - 1293°C

Technological Curves of steel grade S 355 ML

Cross Reference Table (Equivalent Grade) of S 355 ML

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