ASTM 7Q

This page provides ASTM 7Q datasheet, ASTM 7Q mechanical properties, chemical element ASTM 7Q, technical specifications of ASTM 7Q steel material properties. ASTM 7Q performance specifications.

AISI 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
Datasheet for:Steel Grades:Special Alloy:ASTM 7Q

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 / Mechanische Eigenschaften / Caracteristiques mecaniques of 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)
673 (≥) 434 (≥) 22 23 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 422
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
31 - -     0.23 -  
653 559 - 11.3 234   -  
621 - 11 34.2   312 124
Heat treated : 1776°C - 1595°C
Directory is being updated.
The material does not have direct Metallography properties.
Directory is being updated.
The material does not have direct Metallography properties.
Directory is being updated.
Cross Reference Table(Equivalent Grade)
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 1011 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 7Q

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