72MnA

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China YB 72MnA 预应力钢丝及钢绞线用热轧盘条 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 72MnA / 72MnA

Category	Grade	Standard	Region/Area	Standard Content
Metals	72MnA	YB/T 146	China	预应力钢丝及钢绞线用热轧盘条

Chemical composition(mass fraction)(wt.%) of the 72MnA

Element	Min	Max	Similar
Cu	-	0.2000	-
S	-	0.0250	-
P	-	0.0250	-
Mn	0.6000	0.9000	-
Si	0.1200	0.3200	-
C	0.7000	0.7500	-

Mechanical Properties of steel grade 72MnA

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)
851 (≥)	655 (≥)	12	42	32	Solution and Aging, Annealing, Ausaging, Q+T,etc	113

Physical Properties of steel grade 72MnA

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	-	-			0.34	-
277	419	-	41.3	314		-
277	-	34	43.2			412	231

Heat Treatment of steel grade 72MnA

Heat treated : 1546°C - 1895°C

Technological Curves of steel grade 72MnA

No Curve

Cross Reference Table (Equivalent Grade) of 72MnA

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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