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

Characteristics of the material 18G2Fps   ( 18G2Fps,   182 ).

Material : 18G2Fps   ( 18G2Fps,   182 )
Substitute: 162, 10, 15
Classification : Low alloy structural steel for welding construct


Chemical composition in % of the material 18G2Fps   ( 18G2Fps,   182 ) .
C Si Mn Ni S P Cr V N Cu As
0.14 - 0.22max   0.171.3 - 1.7max   0.3max   0.04max   0.035max   0.30.08 - 0.150.015 - 0.03max   0.3max   0.08


Temperature of critical points of the grade 18G2Fps   ( 18G2Fps,   182 ).
Ac1 = 720 ,      Ac3(Acm) = 880 ,       Ar3(Arcm) = 780 ,       Ar1 = 620


Mechanical properties under =20o of the material 18G2Fps   ( 18G2Fps,   182 ) .
Assortment Dimension Direct. s sT d5 y KCU Heat treatment
- mm - MPa MPa % % kJ / m2 -
Rolled stock 4   600   19    
Sheet 5 - 9   600 450 19    


Technological properties of the material 18G2Fps   ( 18G2Fps,   182 ) .
  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]

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

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