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B.S. 708 A 42

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B.S. 708 A 37 B.S. 708 M 40
#B.S. #708 #A #42

Description

BS B.S. 708 A 42 Alloy Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Alloy Steel: B.S. 708 A 42
Category Type Steel Grade Standard Country Application
Steel GradesAlloy Steel B.S. 708 A 42 BS
B.S. 530 A 36
B.S. 530 A 40
B.S. 530 H 32
B.S. 530 H 36
B.S. 530 H 40
B.S. 530 I-I 30
B.S. 530 M 40
B.S. 530 M 40
B.S. 640 M 40
B.S. 708 A 37

Chemical composition(mass fraction)(wt.%) of the B.S. 708 A 42

Element Weight %
C 0.35-0.40
Mn 0.70-0.90
P 0.035 (max)
S 0.04 (max)
Si 0.15-0.30
Cr 0.80-1.10
Mo 0.15-0.25

Mechanical Properties of steel grade B.S. 708 A 42

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)
433 (≥) 381 (≥) 12 34 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 243

Physical Properties of steel grade B.S. 708 A 42

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
13 - -     0.23 -  
394 216 - 24.3 124   -  
225 - 24 11.2   242 342

Heat Treatment of steel grade B.S. 708 A 42

Heat treated : 1888°C - 1693°C

Technological Curves of steel grade B.S. 708 A 42

Cross Reference Table (Equivalent Grade) of B.S. 708 A 42

Grade Standard Country Application
S31708 China Stainless steel bars
GH4708 China wrought Fe/Ni-base superalloy
GH708 China wrought Fe/Ni-base superalloy
K4708 China conventional cast superalloy
K708 China conventional cast superalloy
Q255 A China Engineering and welding
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
7Mn15Cr2A13V2WMo China Alloy tool steel - Without magnetic steel mold
B.S. 708 A 37 B.S. 708 M 40
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Jiangyou Longhai Special Steel Co.,Ltd.
Jiangyou Longhai Special Steel Co.,Ltd.

Our main peoducts of steel are many kinds of special steel, like tool steel, mould steel, alloy steel, alloy constructural steel, heat-resistant steel, high speed tool steel,spring steel and bearing steel , stainless steel and so on, which have formed 12 series and more than 350 varieties with n...

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