A621 HRDQ

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America ASTM A621HRDQ 深冲性冷轧碳素钢薄板和带材规格 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: A621HRDQ / A621 HRDQ

Category	Grade	Standard	Region/Area	Standard Content
Metals	A621 HRDQ	ASTM A621/A621M	America	深冲性冷轧碳素钢薄板和带材规格

Chemical composition(mass fraction)(wt.%) of the A621 HRDQ

Element	Min	Max	Similar
V	-	0.0080	-
S	-	0.0300	-
P	-	0.0200	-
Ni	-	0.2000	-
Nb	-	0.0080	-
Mo	-	0.0600	-
Mn	-	0.5000	-
Cu	-	0.2000	-
Cr+Ni+Cu+Mo	-	0.5000	-
Cr	-	0.1500	-
C	-	0.1000	-

Mechanical Properties of steel grade A621 HRDQ

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)
924 (≥)	576 (≥)	42	41	21	Solution and Aging, Annealing, Ausaging, Q+T,etc	243

Physical Properties of steel grade A621 HRDQ

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
23	-	-			0.33	-
184	569	-	42.3	433		-
168	-	33	41.2			421	422

Heat Treatment of steel grade A621 HRDQ

Heat treated : 1218°C - 1645°C

Technological Curves of steel grade A621 HRDQ

No Curve

Cross Reference Table (Equivalent Grade) of A621 HRDQ

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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