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W209 Extra

Description

USA SAE SAE J 437 (1970), SAE J 438 (1970), W209 Extra Tool Die Steels Tool and die steels and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Tool Die Steels: W209 Extra
Category Class Grade Standard Country Application
Steel GradesTool Die Steels W209 Extra SAE USA Tool and die steels

Chemical composition(mass fraction)(wt.%) of the W209 Extra

C Si Mn Cr V
0.85 -0.95 0.10 -0.40 0.10 -0.40 ≤ ≥ 0.15 -0.35

Mechanical Properties of steel grade W209 Extra

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 (≥) 853 (≥) 31 34 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 442

Physical Properties of steel grade W209 Extra

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 - -     0.21 -  
414 469 - 12.3 313   -  
259 - 11 33.2   444 132

Heat Treatment of steel grade W209 Extra

Heat treated : 1322°C - 1743°C

Technological Curves of steel grade W209 Extra

Cross Reference Table (Equivalent Grade) of W209 Extra

Relevant standard of W209 Extra

SAE J 437 (1970) Selection and heat treatment of tool and die steels SAE-J-437-(1970).pdf
SAE J 438 (1970) Tool and die steels SAE-J-438-(1970).pdf

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