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Characteristics for grade     VSt4kp   ( ВСт4кп )

      Grade :     VSt4kp   ( ВСт4кп )
      Classification :   Normal quality structural carbon steel
      Equivalent grades:   Go here



Chemical composition in % for grade   VSt4kp   ( ВСт4кп )
C Si Mn Ni S P Cr Cu As
0.18 - 0.27max   0.070.4 - 0.7max   0.3max   0.05max   0.04max   0.3max   0.3max   0.08


Temperature of critical points for grade   VSt4kp   ( ВСт4кп ).
Ac1 = 735 ,      Ac3(Acm) = 840 ,       Ar3(Arcm) = 825 ,       Ar1 = 680


Mechanical properties under Т=20oС for grade   VSt4kp   ( ВСт4кп )
Assortment Dimension Direct. sв sT d5 y KCU Heat treatment
- mm - MPa MPa % % kJ / m2 -
Steel hotrolled to 20   400-510255 25   As-delivered state
Steel hotrolled 20 - 40   400-510245 24   As-delivered state
Steel hotrolled 40 - 100   400-510235 22   As-delivered state


Technological properties for grade   VSt4kp   ( ВСт4кп )
  Weldability: limited weldability.
 Flakes : not predisposed
Temper brittleness: not predisposed


Physical properties for grade   VSt4kp   ( ВСт4кп )
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    


Equivalent steels for grade     VSt4kp   ( ВСт4кп )
Warning! Indicated both exact and nearest equivalents.
USAGermanyJapanFranceEnglandPolandCzechiaAustria
-DIN,WNrJIS AFNORBSPNCSNONORM
1020
USt42-2
SS41
E25-2
43/25HR
43/25HS
St3SX
11423
St42RG
St42RGT

Types of delivery of grade   VSt4kp   ( ВСт4кп )
В20 - Classification, nomenclature and general norms
В22 - Graded and shaped rolling
B23 - Sheets and Strips
В62 - Steel pipes and connecting parts to them


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

  VSt4kp   ( ВСт4кп ) - Normal 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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