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Characteristics for grade     St4sp   ( Ст4сп )



      Grade :     St4sp   ( Ст4сп )
      Classification :   Normal quality structural carbon steel
      Equivalent grades:   Go here



Chemical composition in % for grade   St4sp   ( Ст4сп )
C Si Mn Ni S P Cr N Cu As
0.18 - 0.270.15 - 0.30.4 - 0.7max   0.3max   0.05max   0.04max   0.3max   0.008max   0.3max   0.08


Mechanical properties under Т=20oС for grade   St4sp   ( Ст4сп )
Assortment Dimension Direct. sв sT d5 y KCU Heat treatment
- mm - MPa MPa % % kJ / m2 -
Pipe, GOST 8731-87     412 245 20    
Pipe, GOST 10705-80     412 245 21    
Rolled stock, GOST 535-2005     410-530235-26521-24   
Sheet trick, GOST 14637-89     410-530235-26521-23   


    Brinell hardness for     St4sp   ( Ст4сп )   ,       HB 10 -1 = 143   MPa


Physical properties for grade   St4sp   ( Ст4сп )
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     St4sp   ( Ст4сп )
Warning! Indicated both exact and nearest equivalents.
USAGermanyJapanFranceEnglandEuropeanItalyBelgiumSpainChinaSwedenBulgariaPolandRomaniaCzechiaInter
-DIN,WNrJIS AFNORBSEN UNINBNUNEGBSSBDSPNSTASCSNISO
A570(40)
A573Gr.70
A611Gr.D
GradeA
1.0044
1.0144
1.044
Fe430B
Fe430D1
S275JR
S355J0
S355J2G3
St44-2
St44-3
USt44-2
SM400A
SM400B
SM400C
SM41A
SM520B
SS400
E28-2
E28-3
E28-4
1449-43/25HR
4360-43B
4360-43C
43B
43C
43D
Fe430BFN
Fe430D1FF
HS
S275J2G3
S275JR
S275N
1.0044
1.0143
Fe42B
S275
S275J0
S275JR
S275JRG3
Fe430B
Fe430BFN
Fe430C(FN)
Fe430D(FF)
FE430BFN
FE430D1FF
AE275B
AE275D
Fe430BFN
Fe430D1FF
Q255
1411
1412
1414
BSt4sp
WSt4sp
St4S
OL42.1
OL44.2
11425
11443
E275-C
E275-D
Fe430-C
Fe430-D



Types of delivery of grade   St4sp   ( Ст4сп )
В20 - Classification, nomenclature and general norms
В22 - Graded and shaped rolling
B23 - Sheets and Strips
B24 - Ribbons
B42 - Rails: Pads, Pads, Crutches
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]

  St4sp   ( Ст4сп ) - 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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