50Cr21Mn9Ni4Nb2WN

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China GB 50Cr21Mn9Ni4Nb2WN 内燃机气阀用钢及合金棒材 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 50Cr21Mn9Ni4Nb2WN / 50Cr21Mn9Ni4Nb2WN

Category	Grade	Standard	Region/Area	Standard Content
Metals	50Cr21Mn9Ni4Nb2WN	GB/T 12773	China	内燃机气阀用钢及合金棒材

Chemical composition(mass fraction)(wt.%) of the 50Cr21Mn9Ni4Nb2WN

Element	Min	Max	Similar
W	0.8000	1.5000	-
Si	-	0.4500	-
S	-	0.0300	-
P	-	0.0500	-
Ni	3.5000	5.0000	-
Nb	1.8000	2.5000	-
N	0.4000	0.6000	-
Mn	8.0000	10.0000	-
Cu	-	0.3000	-
Cr	20.0000	22.0000	-
C	0.4500	0.5500	-

Mechanical Properties of steel grade 50Cr21Mn9Ni4Nb2WN

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)
438 (≥)	667 (≥)	21	44	31	Solution and Aging, Annealing, Ausaging, Q+T,etc	221

Physical Properties of steel grade 50Cr21Mn9Ni4Nb2WN

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
13	-	-			0.24	-
955	317	-	24.3	314		-
812	-	11	41.2			232	334

Heat Treatment of steel grade 50Cr21Mn9Ni4Nb2WN

Heat treated : 1471°C - 1333°C

Technological Curves of steel grade 50Cr21Mn9Ni4Nb2WN

No Curve

Cross Reference Table (Equivalent Grade) of 50Cr21Mn9Ni4Nb2WN

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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