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Grade : | St3ps ( Ст3пс ) |
Classification : | Normal quality structural carbon steel |
Equivalent grades: | Go here |
C | Si | Mn | Ni | S | P | Cr | N | Cu | As |
0.14 - 0.22 | 0.05 - 0.15 | 0.4 - 0.65 | max 0.3 | max 0.05 | max 0.04 | max 0.3 | max 0.008 | max 0.3 | max 0.08 |
Assortment | Dimension | Direct. | sв | sT | d5 | y | KCU | Heat treatment |
- | mm | - | MPa | MPa | % | % | kJ / m2 | - |
Pipe, GOST 8696-74 | 372 | 245 | 23 | |||||
Pipe, GOST 10705-80 | 372 | 225 | 22 | |||||
Rolled stock, GOST 535-2005 | 370-480 | 205-245 | 23-26 | |||||
Sheet trick, GOST 14637-89 | 370-480 | 205-245 | 23-26 | |||||
Rebar, GOST 5781-82 | 373 | 235 | 25 | |||||
Wire rods , GOST 30136-95 | 490-540 | 60 |
Brinell hardness for St3ps ( Ст3пс ) , | HB 10 -1 = 131 MPa |
Weldability: | without limitations. |
Flakes : | not predisposed |
Temper brittleness: | not predisposed |
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 |
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B03 - Metal forming treatment. Forgings |
В20 - Classification, nomenclature and general norms |
В22 - Graded and shaped rolling |
B23 - Sheets and Strips |
B24 - Ribbons |
B34 - Ribbons |
B42 - Rails: Pads, Pads, Crutches |
В62 - Steel pipes and connecting parts to them |
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 |
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