ML20Mn

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China GB ML20Mn 冷镦钢丝第1部分：热处理型冷镦钢丝 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: ML20Mn / ML20Mn

Category	Grade	Standard	Region/Area	Standard Content
Metals	ML20Mn	GB/T 5953.1	China	冷镦钢丝第1部分：热处理型冷镦钢丝

Chemical composition(mass fraction)(wt.%) of the ML20Mn

Element	Min	Max	Similar
Al	0.0200	-	-
S	-	0.0350	-
P	-	0.0300	-
Mn	0.7000	1.0000	-
Si	-	0.1000	-
C	0.1800	0.2300	-

Mechanical Properties of steel grade ML20Mn

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)
983 (≥)	445 (≥)	44	12	22	Solution and Aging, Annealing, Ausaging, Q+T,etc	231

Physical Properties of steel grade ML20Mn

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
32	-	-			0.33	-
845	953	-	44.3	342		-
738	-	23	43.2			433	232

Heat Treatment of steel grade ML20Mn

Heat treated : 1814°C - 1858°C

Technological Curves of steel grade ML20Mn

No Curve

Cross Reference Table (Equivalent Grade) of ML20Mn

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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