A618 Grade Ia

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America ASTM A618GradeIa 热成形焊接及无缝高强度低合金结构管材规格 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: A618GradeIa / A618 Grade Ia

Category	Grade	Standard	Region/Area	Standard Content
Metals	A618 Grade Ia	ASTM A618/A618M	America	热成形焊接及无缝高强度低合金结构管材规格

Chemical composition(mass fraction)(wt.%) of the A618 Grade Ia

Element	Min	Max	Similar

The data is being updated,

Mechanical Properties of steel grade A618 Grade Ia

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)
512 (≥)	648 (≥)	31	21	11	Solution and Aging, Annealing, Ausaging, Q+T,etc	321

Physical Properties of steel grade A618 Grade Ia

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
34	-	-			0.43	-
591	292	-	13.3	223		-
365	-	22	24.2			211	423

Heat Treatment of steel grade A618 Grade Ia

Heat treated : 1332°C - 1655°C

Technological Curves of steel grade A618 Grade Ia

No Curve

Cross Reference Table (Equivalent Grade) of A618 Grade Ia

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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