A139 Grade A

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America ASTM A139GradeA 电熔(电弧)焊钢管(4英寸以上的) and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: A139GradeA / A139 Grade A

Category	Grade	Standard	Region/Area	Standard Content
Metals	A139 Grade A	ASTM A139/A139M	America	电熔(电弧)焊钢管(4英寸以上的)

Chemical composition(mass fraction)(wt.%) of the A139 Grade A

Element	Min	Max	Similar

The data is being updated,

Mechanical Properties of steel grade A139 Grade A

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)
644 (≥)	234 (≥)	11	32	14	Solution and Aging, Annealing, Ausaging, Q+T,etc	423

Physical Properties of steel grade A139 Grade A

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
22	-	-			0.31	-
819	667	-	41.3	113		-
955	-	41	24.2			324	143

Heat Treatment of steel grade A139 Grade A

Heat treated : 1613°C - 1855°C

Technological Curves of steel grade A139 Grade A

No Curve

Cross Reference Table (Equivalent Grade) of A139 Grade A

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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