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Characteristics for grade     08   ( 08 )

      Grade :     08   ( 08 )
      Substitute:   10
      Classification :   High quality structural carbon steel
      Equivalent grades:   Go here



Chemical composition in % for grade   08   ( 08 )
C Si Mn Ni S P Cr Cu As
0.05 - 0.120.17 - 0.370.35 - 0.65max   0.3max   0.04max   0.035max   0.1max   0.3max   0.08


Temperature of critical points for grade   08   ( 08 ).
Ac1 = 735 ,      Ac3(Acm) = 874 ,       Ar3(Arcm) = 854 ,       Ar1 = 680


Mechanical properties under Т=20oС for grade   08   ( 08 )
Assortment Dimension Direct. sв sT d5 y KCU Heat treatment
- mm - MPa MPa % % kJ / m2 -
Sheet heat-treatment, GOST 4041-71 4 - 8   270-410  32    
Bar cold-drawn , GOST 10702-78     310-410    55 Annealing
Rolled stock, GOST 1050-88 to 80   320 196 33 60 Normalizing
Rolled stock, GOST 10702-78     370   8 55  
Strip, GOST 1577-93 6 - 60   320 196 33 60 Normalizing


    Brinell hardness for     08   ( 08 )   (hot-rolled) ,       GOST 1050-88 HB 10 -1 = 131   MPa
    Brinell hardness for     08   ( 08 )   (cold-drawn, cold-worked) ,       GOST 1050-88 HB 10 -1 = 179   MPa
    Brinell hardness for     08   ( 08 )   ,     Sheet GOST 4041-71 HB 10 -1 = 109   MPa
    Brinell hardness for     08   ( 08 )   ,     Rolled stock GOST 1050-88 HB 10 -1 = 131   MPa


Technological properties for grade   08   ( 08 )
  Weldability: without limitations.
 Flakes : not predisposed
Temper brittleness: not predisposed


Physical properties for grade   08   ( 08 )
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     7871    
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


Equivalent steels for grade     08   ( 08 )
Warning! Indicated both exact and nearest equivalents.
USAGermanyJapanFranceEnglandEuropeanItalyBelgiumSpainChinaSwedenBulgariaHungaryPolandRomaniaCzechiaAustriaAustraliaSwitzerlandSouth Korea
-DIN,WNrJIS AFNORBSEN UNINBNUNEGBSSBDSMSZPNSTASCSNONORMASSNVKS
1008
1010
1011
G10080
G10100
M1010
1.1121
C10
C10D
Ck10
DC01
DC04G1
DD13
St12
S10C
S9CK
SPHE
SWR1
AF-34
C10RR
XC10
040A10
045A10
045M10
C10E
1.1121
2C10
C10E
2C10
2C15
C10
C10-2
C10E
F.151
08
08F
10
1146
1265
08
C10
08X
10
OLC10X
12010
RC12
1010
A1010
CA1010
HA1010
Ck10
SM10C
SM9CK


Specification :
Mechanical properties :
sв - 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/(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

  08   ( 08 ) - High quality structural carbon steel: chemical composition, mechanical and physical properties, hardness
Database of steels and alloys (Marochnik) contains information about chemical composition and properties more then 3000 steels and alloys

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