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ASTM 7Q

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ICI 4020 ICI 4130
#ASTM # #7Q

Description

China AISI ASTM 7Q and ASTM 7Q Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Alloy: ASTM 7Q
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Alloy ASTM 7Q AISI China
ASTM 2A,2Q
ICI 1030
ASTM 3A,3Q
ICI 1040
ICI 1050
ASTM 4A,4Q
ICI 6120
ASTM 5N
ASTM 6N
ICI 4020

Chemical composition(mass fraction)(wt.%) of the ASTM 7Q

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Mo(％) W(%) Cu(%)
0.25-0.35 0.20-0.80 0.40-0.70 Max 0.04 Max 0.045 0.80-1.10 0.15-0.25 Max 0.10 Max 0.50

Mechanical Properties of steel grade ASTM 7Q

Yield
Rp0.2 (MPa)		 Tensile
Rm (MPa)		 Impact
KV/Ku (J)		 Elongation
A (%)		 Reduction in cross section on fracture
Z (%)		 As-Heat-Treated Condition Brinell hardness (HBW)
455 (≥) 644 (≥) 24 41 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 313

Physical Properties of steel grade ASTM 7Q

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 - -     0.13 -  
998 569 - 11.3 231   -  
114 - 13 24.2   442 322

Heat Treatment of steel grade ASTM 7Q

Heat treated : 1433°C - 1155°C

Technological Curves of steel grade ASTM 7Q

Cross Reference Table (Equivalent Grade) of ASTM 7Q

Grade Standard Country Application
ASTM 1030 ASTM USA General use carbon steel bar
ASTM 1005 ASTM USA General use carbon steel bar
ASTM 1006 ASTM USA General use carbon steel bar
ASTM 1008 ASTM USA General use carbon steel bar
ASTM 1010 ASTM USA General use carbon steel bar
ASTM 1013 ASTM USA General use carbon steel bar
ASTM 1015 ASTM USA General use carbon steel bar
ASTM 1016 ASTM USA General use carbon steel bar
ASTM 1017 ASTM USA General use carbon steel bar
ASTM 1018 ASTM USA General use carbon steel bar
ASTM 1019 ASTM USA General use carbon steel bar
ASTM 1020 ASTM USA General use carbon steel bar
ASTM 1021 ASTM USA General use carbon steel bar
ASTM W1-A ASTM USA Carbon tool steel
ASTM A182 F55 ASTM USA Super Duplex
ASTM 431 ASTM USA Martensitic special steel
ASTM 440A ASTM USA Martensitic special steel
ASTM 440B ASTM USA Martensitic special steel
ASTM 440C ASTM USA Martensitic special steel
ASTM 501 ASTM USA Martensitic special steel
ICI 4020 ICI 4130
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