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Metals -> Structural steel -> Alloy structurall steel

Characteristics of the material 50G2   ( 50G2,   502 ).

Material : 50G2   ( 50G2,   502 )
Substitute: 452, 60
Classification : Alloy structurall steel


Chemical composition in % of the material 50G2   ( 50G2,   502 ) .
C Si Mn Ni S P Cr Cu
0.46 - 0.550.17 - 0.371.4 - 1.8max   0.3max   0.035max   0.035max   0.3max   0.3


Temperature of critical points of the grade 50G2   ( 50G2,   502 ).
Ac1 = 710 ,      Ac3(Acm) = 660 ,       Ar3(Arcm) = 680 ,       Ar1 = 600


Mechanical properties under =20o of the material 50G2   ( 50G2,   502 ) .
Assortment Dimension Direct. s sT d5 y KCU Heat treatment
- mm - MPa MPa % % kJ / m2 -
Forging to 100   570 315 17 38390Normalizing
Forging 100 - 300   570 315 14 35340Normalizing


    Brinell hardness of the material   50G2   ( 50G2,   502 )   (annealing) ,       HB 10 -1= 229   MPa


Physical properties of the material 50G2   ( 50G2,   502 ) .
T E 10- 5 a 10 6 l r C R 10 9
Grade MPa 1/Grade Watt/(mGrade) kg/m3 J/(kgGrade) Ohmm
20 2.04     7500    
100   11.3 41      
200   12.2 40      
300   12.3 38      
400     36      
500     35      
600   14.7        
T E 10- 5 a 10 6 l r C R 10 9


Technological properties of the material 50G2   ( 50G2,   502 ) .
  Weldability: is not used.
 Flakes : weakly predisposed
Temper brittleness: predisposed



Specification :
Mechanical properties :
s - Tensile strength , [MPa]
sT - Yield stress, [MPa]
d5 - Specific elongation at fracture , [ % ]
y - Reduction of area , [ % ]
KCU - Impact strength , [ kJ / m2]
HB - Brinell hardness , [MPa]

Physical properties :
T - Test temperature , [Grade]
E - Young modulus , [MPa]
a - Coefficient of linear expansion (range 20o - T ) , [1/Grade]
l - Termal (heat) condition coefficient , [Watt/(mGrade)]
r - Density , [kg/m3]
C - Specific heat ( range 20o - T ), [J/(kgGrade)]
R - Electrical resistance , [Ohmm]

Weldability :
without limitations - welding is done without heating and subsequent heat treeting
limited weldability - welding is possible under heating up to 100-120 grade and subsequent heat treeting
hard weldability - obtaining the quality welding needs the additional operations:heating up to 200-300 grade; the heat treeting ia annealing

Database of steels and alloys (Marochnik) contains information about chemical composition and properties of 1500 steels and alloys (stainless steel, alloy steel, carbone steel, structural steel, tool steel, cast iron, aluminum alloy, titanium alloy, copper alloy, nickel alloy, magnesium alloy and others).
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