FE-PA4901

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Germany DIN FE-PA4901 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: FE-PA4901 / FE-PA4901

Category	Grade	Standard	Region/Area	Standard Content
Metals	FE-PA4901	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 FE-PA4901

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 FE-PA4901

Yield R_p0.2 (MPa)	Tensile R_m (MPa)	Impact KV/Ku (J)	Elongation A (%)	Reduction in cross section on fracture Z (%)	As-Heat-Treated Condition	Brinell hardness (HBW)
344 (≥)	472 (≥)	31	41	42	Solution and Aging, Annealing, Ausaging, Q+T,etc	123

Physical Properties of steel grade FE-PA4901

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
31	-	-			0.14	-
734	389	-	13.3	423		-
495	-	13	21.2			323	334

Heat Treatment of steel grade FE-PA4901

Heat treated : 1829°C - 1818°C

Technological Curves of steel grade FE-PA4901

No Curve

Cross Reference Table (Equivalent Grade) of FE-PA4901

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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