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Description

8620 Carbon Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Carbon Steel: 8620
Category Type Steel Grade Standard Country Application
Steel GradesCarbon Steel 8620
3310
4320
4620
4720
4820
52100
52100 Mod.1
52100 Mod.2
52100 Mod.3
52100 Mod.4

Chemical composition(mass fraction)(wt.%) of the 8620

C
Si
Mn
P
S
Cr Ni
 0.18-0.23 0.15-0.35  0.7-0.9  0.015   0.015 0.4-0.6  0.4-0.7 
Mo Al Cu Nb Ti V Ce
0.15-0.25    ≤ 0.35        
N Co Pb B Other    
             
             

Mechanical Properties of steel grade 8620

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)
691 (≥) 387 (≥) 13 22 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 343

Physical Properties of steel grade 8620

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
14 - -     0.13 -  
748 922 - 32.3 133   -  
342 - 24 44.2   421 244

Heat Treatment of steel grade 8620

Heat treated : 1485°C - 1639°C

Technological Curves of steel grade 8620

Cross Reference Table (Equivalent Grade) of 8620

Grade Standard Country Application
ICI 8620 AISI USA
8620 Australia Structural steel
8620H Australia Structural steel
8620 USA Carbon and Low Alloy Steel for General Application, and Cobalt Alloy for High Strength at Elevated Temperatures
8620 USA Carbon and Low Alloy Steel for General Application, and Cobalt Alloy for High Strength at Elevated Temperatures

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