Metals -> Structural steel -> High quality structural carbon steel Characteristics of the material 08kp ( 08kp, 08кп ).
Material : 08kp ( 08kp, 08кп ) Substitute: 08 Classification : High quality structural carbon steel
Chemical composition in % of the material 08kp ( 08kp, 08кп ) . C Si Mn Ni S P Cr Cu As 0.05 - 0.11 max 0.03 0.25 - 0.5 max 0.25 max 0.04 max 0.035 max 0.1 max 0.25 max 0.08
Temperature of critical points of the grade 08kp ( 08kp, 08кп ).
Ac1 = 732 , Ac3 (Acm ) = 874 , Ar3 (Arcm ) = 854 , Ar1 = 680
Mechanical properties under Т=20o С of the material 08kp ( 08kp, 08кп ) .
Assortment Dimension Direct. s в s T
d 5
y KCU Heat treatment - mm - MPa MPa % % kJ / m2 - Steel cold-drawn 314-412 60 Annealing
Brinell hardness of the material 08kp ( 08kp, 08кп ) (cold-drawn, cold-worked) , HB 10 -1 = 179 MPa Brinell hardness of the material 08kp ( 08kp, 08кп ) (hot-rolled, annealing) , HB 10 -1 = 131 MPa
Physical properties of the material 08kp ( 08kp, 08кп ) . 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 2.03 63 7871 147 100 2.07 12.5 60 7846 482 178 200 1.82 13.4 56 7814 498 252 300 1.53 14 51 7781 514 341 400 1.41 14.5 47 7745 533 448 500 14.9 41 7708 555 575 600 15.1 37 7668 584 725 700 15.3 34 7628 626 898 800 14.7 30 7598 695 1073 900 12.7 27 7602 703 1124 1000 13.8 695 T E 10- 5 a 10 6 l r C R 10 9
Technological properties of the material 08kp ( 08kp, 08кп ) . Weldability: without limitations. Flakes : not predisposed Temper brittleness: not predisposed
Specification :
Mechanical properties : s в - 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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