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Metals -> Structural steel -> Low alloy structural steel for welding construct

Characteristics of the material 20KHG2TS   ( 20HG2TS,   202 ).

Material : 20KHG2TS   ( 20HG2TS,   202 )
Classification : Low alloy structural steel for welding construct


Chemical composition in % of the material 20KHG2TS   ( 20HG2TS,   202 ) .
C Si Mn Ni S P Cr Cu Zr
0.19 - 0.260.4 - 0.71.5 - 1.9max   0.3max   0.045max   0.0450.9 - 1.2max   0.30.05 - 0.14


Temperature of critical points of the grade 20KHG2TS   ( 20HG2TS,   202 ).
Ac1 = 770 ,      Ac3(Acm) = 835 ,       Ar3(Arcm) = 740 ,       Mn = 345


Mechanical properties under =20o of the material 20KHG2TS   ( 20HG2TS,   202 ) .
Assortment Dimension Direct. s sT d5 y KCU Heat treatment
- mm - MPa MPa % % kJ / m2 -
Rebar 10 - 18   900 600 6    


Physical properties of the material 20KHG2TS   ( 20HG2TS,   202 ) .
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            
100   12.3        
200   12.3        
300   12.5        
400   13.1        
500   13.5        
600   13.9        
700   14.2        
T E 10- 5 a 10 6 l r C R 10 9


Technological properties of the material 20KHG2TS   ( 20HG2TS,   202 ) .
  Weldability: without limitations.



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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