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America UNS S34740 奥氏体铬镍 高速切削合金不锈钢 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: S34740 / S34740
Category Grade Standard Region/Area Standard Content
Metals S34740 -- America 奥氏体铬镍 高速切削合金不锈钢

Chemical composition(mass fraction)(wt.%) of the S34740

Element Min Max Similar
Si - 1.0000 -
S 0.1800 0.3500 -
P - 0.0400 -
Ni 9.0000 12.0000 -
Nb - - -
Mn - 2.0000 -
Cr 17.0000 19.0000 -
C - 0.0800 -

Mechanical Properties of steel grade S34740

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)
587 (≥) 366 (≥) 24 32 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 342

Physical Properties of steel grade S34740

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
11 - -     0.34 -  
639 161 - 21.3 431   -  
145 - 14 14.2   211 414

Heat Treatment of steel grade S34740

Heat treated : 1615°C - 1125°C

Technological Curves of steel grade S34740

Cross Reference Table (Equivalent Grade) of S34740

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