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X12CrNiCoMoW21-20

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Germany DIN X12CrNiCoMoW21-20 Aerospace series - Heat resisting alloy FE-PA4901 (X12CrNiCoMoW21-20) - AS forged - Forging stock - a or D <= 200 mm - 690 Mpa <=Rm <= 960Mpa and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: X12CrNiCoMoW21-20 / X12CrNiCoMoW21-20
Category Grade Standard Region/Area Standard Content
Metals X12CrNiCoMoW21-20 DIN EN 4263 Germany Aerospace series - Heat resisting alloy FE-PA4901 (X12CrNiCoMoW21-20) - AS forged - Forging stock - a or D <= 200 mm - 690 Mpa <=Rm <= 960Mpa

Chemical composition(mass fraction)(wt.%) of the X12CrNiCoMoW21-20

Element Min Max Similar
C 0.0800 0.1600 -
Mn 1.0000 2.0000 -
P - 0.0400 -
S - 0.0300 -
Si - 1.0000 -
Ni 19.0000 21.0000 -
Cr 20.0000 22.5000 -
Mo 2.5000 3.5000 -
Cu - 0.5000 -
W 2.0000 3.0000 -
N 0.1000 0.2000 -
Nb 0.7500 1.2500 -
Fe - - -
Co 18.5000 21.0000 -
C 0.0800 0.1600 -
Mn 1.0000 2.0000 -
P - 0.0400 -
S - 0.0300 -
Si - 1.0000 -
Ni 19.0000 21.0000 -
Cr 20.0000 22.5000 -
Mo 2.5000 3.5000 -
Cu - 0.5000 -
W 2.0000 3.0000 -
N 0.1000 0.2000 -
Nb 0.7500 1.2500 -
Fe - - -
Co 18.5000 21.0000 -

Mechanical Properties of steel grade X12CrNiCoMoW21-20

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)
945 (≥) 826 (≥) 12 32 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 443

Physical Properties of steel grade X12CrNiCoMoW21-20

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 - -     0.44 -  
312 368 - 23.3 324   -  
477 - 32 11.2   333 142

Heat Treatment of steel grade X12CrNiCoMoW21-20

Heat treated : 1318°C - 1476°C

Technological Curves of steel grade X12CrNiCoMoW21-20

Cross Reference Table (Equivalent Grade) of X12CrNiCoMoW21-20

Grade Standard Country Application
ASTM 5140
AISI 201
AISI 202
1.2767
17-4PH
AISI 1052
AISI 416Se
AISI 1330
AISI 205 Stainless Steel
AISI A10
AISI A2
AISI A3
AISI A4
1.0036
1.0037
SAE J403
UNS G10100
AMS 4924
ASTM A36
Electrode 100S-1
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