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Characteristics for grade     15kp   ( 15кп )

      Grade :     15kp   ( 15кп )
      Substitute:   10кп, 20кп
      Classification :   High quality structural carbon steel
      Equivalent grades:   Go here



Chemical composition in % for grade   15kp   ( 15кп )
C Si Mn Ni S P Cr Cu As
0.12 - 0.19max   0.070.25 - 0.5max   0.3max   0.04max   0.035max   0.25max   0.3max   0.08


Temperature of critical points for grade   15kp   ( 15кп ).
Ac1 = 735 ,      Ac3(Acm) = 863 ,       Ar3(Arcm) = 840 ,       Ar1 = 685


Mechanical properties under Т=20oС for grade   15kp   ( 15кп )
Assortment Dimension Direct. sв sT d5 y KCU Heat treatment
- mm - MPa MPa % % kJ / m2 -
Sheet heat-treatment, GOST 4041-71 4 - 14   320-440  30    
Pipe, GOST 10705-80     314 196 25    
Steel cold-drawn , GOST 10702-78     392   8 50  
Strip, GOST 1577-93 6 - 60   350 205 29 55 Normalizing


    Brinell hardness for     15kp   ( 15кп )   ,     Sheet GOST 4041-71 HB 10 -1 = 121   MPa
    Brinell hardness for     15kp   ( 15кп )   ,     Bar GOST 10702-78 HB 10 -1 = 125   MPa
    Brinell hardness for     15kp   ( 15кп )   ,     Sheet trick GOST 1577-93 HB 10 -1 = 143   MPa


Technological properties for grade   15kp   ( 15кп )
  Weldability: without limitations.
 Flakes : not predisposed
Temper brittleness: not predisposed


Physical properties for grade   15kp   ( 15кп )
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 2.01     7850    
100 1.92 12.4 53 7827 465 233
200 1.85 13.2 53 7794 486 296
300 1.72 13.9 49 7759 515 387
400 1.56 14.4 46 7724 532 487
500   14.8 43 7687 565 607
600   15.1 39 7648 586 753
700   15.3 36 7611 620 904
800   14.1 32 7599 691 1092
900   13.2 30 7584 708 1140
1000   13.3        
T E 10- 5 a 10 6 l r C R 10 9


Equivalent steels for grade     15kp   ( 15кп )
Warning! Indicated both exact and nearest equivalents.
USAGermanyJapanFranceEnglandEuropeanItalySpainChinaBulgariaPolandAustriaAustralia
-DIN,WNrJIS AFNORBSEN UNIUNEGBBDSPNONORMAS
1015
1017
A366
A621
G10080
G10150
G10170
M1015
M1017
1.0332
Cq15
DD11
RSt42-2
StW22
PHD
SPHD
1C
DD11
1449-4HR
14HR
DD11
1.0332
C15E2C
DD11
StW22
FeP11
AP11
DD11
15F
15kp
DD11
15X
St12F
St22F
CA1
HA1

Types of delivery of grade   15kp   ( 15кп )
В22 - Graded and shaped rolling
B23 - Sheets and Strips
В32 - Graded and shaped rolling
B33 - Sheets and Strips
B34 - Ribbons
В62 - Steel pipes and connecting parts to them
B70 - Classification, nomenclature and general norms
В71 - Low-carbon steel wire
В72 - Medium-high and high-carbon steel wire


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

  15kp   ( 15кп ) - 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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