Q420qD

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China 舞钢Q/WTB Q420qD 关于 WJX 024-2012 《港珠澳用钢板技术条件》的补充规定 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: Q420qD / Q420qD

Category	Grade	Standard	Region/Area	Standard Content
Metals	Q420qD	WJX 024-1	China	关于 WJX 024-2012 《港珠澳用钢板技术条件》的补充规定

Chemical composition(mass fraction)(wt.%) of the Q420qD

Element	Min	Max	Similar

The data is being updated,

Mechanical Properties of steel grade Q420qD

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)
855 (≥)	425 (≥)	24	44	23	Solution and Aging, Annealing, Ausaging, Q+T,etc	123

Physical Properties of steel grade Q420qD

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
12	-	-			0.41	-
679	427	-	12.3	342		-
882	-	23	11.2			444	333

Heat Treatment of steel grade Q420qD

Heat treated : 1138°C - 1286°C

Technological Curves of steel grade Q420qD

No Curve

Cross Reference Table (Equivalent Grade) of Q420qD

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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