Metals -> Structural steel -> Low alloy structural steel for welding construct Characteristics of the material 16GS ( 16GS, 16ÃÑ ).
Material : 16GS ( 16GS, 16ÃÑ ) Substitute: 17ÃÑ, 15ÃÑ, 20Ã2Ñ, 20ÃÑ, 18Ã2Ñ Classification : Low alloy structural steel for welding construct
Chemical composition in % of the material 16GS ( 16GS, 16ÃÑ ) . C Si Mn Ni S P Cr N Cu As 0.12 - 0.18 0.4 - 0.7 0.9 - 1.2 max 0.3 max 0.04 max 0.035 max 0.3 max 0.008 max 0.3 max 0.08
Temperature of critical points of the grade 16GS ( 16GS, 16ÃÑ ).
Ac1 = 736 - 745 , Ac3 (Acm ) = 920 - 927 , Ar3 (Arcm ) = 791 - 820 , Ar1 = 641 - 735
Mechanical properties under Ò=20o Ñ of the material 16GS ( 16GS, 16ÃÑ ) .
Assortment
Dimension
Direct.
s â
s T
d 5
y
KCU
Heat treatment - mm - MPa MPa % % kJ / m2 - Sheet 4 - 10 500 330 21 Sheet 11 - 20 490 320 21 600 Sheet 21 - 32 480 300 21 600 Sheet 33 - 60 470 290 21 600 Sheet 61 - 160 460 280 21 600 Sheet hotrolled 61 - 160 460 280 22 600 Pipe hotrolled Æ 325 x 30 tangent 480 280 28 57 1000 Pipe hotrolled Æ 325 x 30 longitudinal 480 260 27 65 1200
Physical properties of the material 16GS ( 16GS, 16ÃÑ ) . T E 10- 5 a 10 6 l r C R 10 9 Grade MPa 1/Grade Watt/(m·Grade) kg/m3 J/(kg·Grade) Ohm·m 20 7850 100 13 470 200 14 300 1.81 15.3 400 1.72 16.2 500 1.62 16.1 600 16.2 T E 10- 5 a 10 6 l r C R 10 9
Technological properties of the material 16GS ( 16GS, 16ÃÑ ) . Weldability: without limitations. Flakes : not predisposed Temper brittleness: not predisposed
Specification :
Mechanical properties :
s â - Tensile strength , [MPa]
s T - Yield stress, [MPa]
d 5 - 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/(m·Grade)]
r - Density , [kg/m3 ]
C - Specific heat
( range 20o - T ), [J/(kg·Grade)]
R - Electrical resistance , [Ohm·m]
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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