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Metals -> Structural steel -> High quality structural carbon steel

Characteristics of the material 08kp   ( 08kp,   08 ).

Material : 08kp   ( 08kp,   08 )
Substitute: 08
Classification : High quality structural carbon steel


Chemical composition in % of the material 08kp   ( 08kp,   08 ) .
C Si Mn Ni S P Cr Cu As
0.05 - 0.11max   0.030.25 - 0.5max   0.25max   0.04max   0.035max   0.1max   0.25max   0.08


Temperature of critical points of the grade 08kp   ( 08kp,   08 ).
Ac1 = 732 ,      Ac3(Acm) = 874 ,       Ar3(Arcm) = 854 ,       Ar1 = 680


Mechanical properties under =20o of the material 08kp   ( 08kp,   08 ) .
Assortment Dimension Direct. s sT d5 y KCU Heat treatment
- mm - MPa MPa % % kJ / m2 -
Steel cold-drawn     314-412    60 Annealing


    Brinell hardness of the material   08kp   ( 08kp,   08 )   (cold-drawn, cold-worked) ,       HB 10 -1= 179   MPa
    Brinell hardness of the material   08kp   ( 08kp,   08 )   (hot-rolled, annealing) ,       HB 10 -1= 131   MPa


Physical properties of the material 08kp   ( 08kp,   08 ) .
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 2.03   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,   08 ) .
  Weldability: without limitations.
 Flakes : not predisposed
Temper brittleness: not 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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