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ASTM B4Q

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UNS J31500 ASTM B4N
#ASTM # # #B4Q

Description

ASTM B4Q Carbon Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Carbon Steel: ASTM B4Q
Category Type Steel Grade Standard Country Application
Steel GradesCarbon Steel ASTM B4Q
UNS J91540
ASTM A1Q
ASTM A2Q
UNS J02503
ASTM B2Q
ASTM B2N
UNS J22501
ASTM B3Q
ASTM B3N
UNS J31500

Chemical composition(mass fraction)(wt.%) of the ASTM B4Q

 

 

C
≤		 Si
≤		 Mn
≤		 P
≤		 S
≤		 Cr Ni
0.15 0.6 0.5-0.8 0.025 0.025 0.4 4.0-5.0
Mo Al Cu Nb Ti V Ce
0.25   0.5     0.03  
N Co Pb B Other    
             
             

Mechanical Properties of steel grade ASTM B4Q

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)
783 (≥) 342 (≥) 14 42 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 342

Physical Properties of steel grade ASTM B4Q

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
44 - -     0.22 -  
346 318 - 32.3 212   -  
336 - 32 31.2   413 123

Heat Treatment of steel grade ASTM B4Q

Heat treated : 1458°C - 1667°C

Technological Curves of steel grade ASTM B4Q

Cross Reference Table (Equivalent Grade) of ASTM B4Q

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
UNS J31500 ASTM B4N
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