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Global 企业标准 TL4227 表面淬火钢 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: TL4227 / TL4227
Category Grade Standard Region/Area Standard Content
Metals TL4227 -- Global 表面淬火钢

Chemical composition(mass fraction)(wt.%) of the TL4227

Element Min Max Similar
C 0.1400 0.2200 -
Si - 0.1200 -
Mn 1.0000 1.5000 -
P - 0.0350 -
S 0.0200 0.0350 -
Cr 0.8000 1.3000 -
Al 0.0150 0.0400 -
N - 0.0150 -

Mechanical Properties of steel grade TL4227

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)
855 (≥) 484 (≥) 43 33 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 141

Physical Properties of steel grade TL4227

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
44 - -     0.34 -  
784 342 - 11.3 442   -  
965 - 13 33.2   342 231

Heat Treatment of steel grade TL4227

Heat treated : 1769°C - 1852°C

Technological Curves of steel grade TL4227

Cross Reference Table (Equivalent Grade) of TL4227

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