ASTM 8Q

This page provides ASTM 8Q datasheet, ASTM 8Q mechanical properties, chemical element ASTM 8Q, technical specifications of ASTM 8Q steel material properties. ASTM 8Q performance specifications.

AISI ASTM 8Q
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Alloy ASTM 8Q AISI USA
ICI 1040
ICI 1050
ASTM 4A,4Q
ICI 6120
ASTM 5N
ASTM 6N
ICI 4020
ASTM 7Q
ICI 4130
ICI 4140
Datasheet for:Steel Grades:Special Alloy:ASTM 8Q

Chemical composition(mass fraction)(wt.%) of the ASTM 8Q

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) Mo(%) W(%) Cu(%)
0.35-0.45 0.20-0.80 0.70-1.00 Max 0.04 Max 0.045 0.80-1.10 Max 0.50 0.15-0.25 Max 0.10 Max 0.50

Mechanical properties / Mechanische Eigenschaften / Caracteristiques mecaniques of grade ASTM 8Q

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)
159 (≥) 447 (≥) 33 33 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 244
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
42 - -     0.24 -  
993 354 - 44.3 413   -  
914 - 42 41.2   334 211
Heat treated : 1274°C - 1165°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 8Q

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