Chinese
Available 24/7 at contact@steel-grades.com
SGSG
Toggle menu

ASTM 4140

Favorite Datasheet
UNS G41420 ASTM 4145
#ASTM # #4140

Description

ASTM 4140 Carbon Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Carbon Steel: ASTM 4140
Category Type Steel Grade Standard Country Application
Steel GradesCarbon Steel ASTM 4140
ASTM 4130
UNS G41300
ASTM 4135
UNS G41350
ASTM 4137
UNS G41370
ASTM 4140
UNS G41400
ASTM 4142
UNS G41420

Chemical composition(mass fraction)(wt.%) of the ASTM 4140

C
≤		 Si
≤		 Mn
≤		 P
≤		 S
≤		 Cr Ni
0.38-0.43 0.15-0.35  0.75-1.0  0.035 0.04  0.8-1.1  
Mo Al Cu Nb Ti V Ce
0.15-0.25            
N Co Pb B Other    
             
             

Mechanical Properties of steel grade ASTM 4140

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)
827 (≥) 212 (≥) 44 23 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 433

Physical Properties of steel grade ASTM 4140

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
21 - -     0.31 -  
826 198 - 34.3 421   -  
451 - 23 34.2   312 124

Heat Treatment of steel grade ASTM 4140

Heat treated : 1677°C - 1791°C

Technological Curves of steel grade ASTM 4140

Cross Reference Table (Equivalent Grade) of ASTM 4140

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 G41420 ASTM 4145
Available Suppliers
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...

REQUEST FOR QUOTATION
  • Do you supply this ASTM 4140?
  • List your company on S&G now? Join
  • Non-paying users only
Sidebar RFQs Menu My Account
Top