30CrNi4MoA

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China GJB 30CrNi4MoA 航空用高纯洁度合金结构钢棒规范 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 30CrNi4MoA / 30CrNi4MoA

Category	Grade	Standard	Region/Area	Standard Content
Metals	30CrNi4MoA	GJB 6487	China	航空用高纯洁度合金结构钢棒规范

Chemical composition(mass fraction)(wt.%) of the 30CrNi4MoA

Element	Min	Max	Similar
C	0.2600	0.3400	-
Si	0.1000	0.3500	-
Mn	0.4500	0.7000	-
P	-	0.0250	-
S	-	0.0200	-
Cr	1.1000	1.4000	-
Ni	3.9000	4.3000	-
Mo	0.2000	0.3500	-
Cu	-	0.2000	-

Mechanical Properties of steel grade 30CrNi4MoA

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)
448 (≥)	998 (≥)	34	23	22	Solution and Aging, Annealing, Ausaging, Q+T,etc	221

Physical Properties of steel grade 30CrNi4MoA

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
21	-	-			0.31	-
791	435	-	33.3	131		-
977	-	33	22.2			234	311

Heat Treatment of steel grade 30CrNi4MoA

Heat treated : 1174°C - 1913°C

Technological Curves of steel grade 30CrNi4MoA

No Curve

Cross Reference Table (Equivalent Grade) of 30CrNi4MoA

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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