A540 Grade B21 Class 5

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America ASTM A540GradeB21Class5 特殊用途的合金钢螺栓材料 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: A540GradeB21Class5 / A540 Grade B21 Class 5

Category	Grade	Standard	Region/Area	Standard Content
Metals	A540 Grade B21 Class 5	ASTM A540/A540M	America	特殊用途的合金钢螺栓材料

Chemical composition(mass fraction)(wt.%) of the A540 Grade B21 Class 5

Element	Min	Max	Similar

The data is being updated,

Mechanical Properties of steel grade A540 Grade B21 Class 5

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)
332 (≥)	333 (≥)	33	32	22	Solution and Aging, Annealing, Ausaging, Q+T,etc	114

Physical Properties of steel grade A540 Grade B21 Class 5

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
44	-	-			0.32	-
131	893	-	33.3	414		-
362	-	23	32.2			432	234

Heat Treatment of steel grade A540 Grade B21 Class 5

Heat treated : 1578°C - 1468°C

Technological Curves of steel grade A540 Grade B21 Class 5

No Curve

Cross Reference Table (Equivalent Grade) of A540 Grade B21 Class 5

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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