| Grade : | 05kp ( 05кп ) |
| Classification : | High quality structural carbon steel |
| Equivalent grades: | Go here |
Chemical composition in % for grade 05kp ( 05кп )
| C | Si | Mn | Ni | S | P | Cr | Cu | As |
| max 0.06 | max 0.03 | max 0.4 | max 0.3 | max 0.04 | max 0.035 | max 0.1 | max 0.3 | max 0.08 |
Temperature of critical points for grade 05kp ( 05кп ).
| Ac1 = 720 , Ac3(Acm) = 880 , Ar1 = 700 |
Mechanical properties under Т=20oС for grade 05kp ( 05кп )
| Assortment | Dimension | Direct. | sв | sT | d5 | y | KCU | Heat treatment |
| - | mm | - | MPa | MPa | % | % | kJ / m2 | - |
| Sheet hotrolled | 4 | 255-370 | 28 | As-delivered state |
| Brinell hardness for 05kp ( 05кп ) (annealing) , | HB 10 -1 = 111 - 131 MPa |
Technological properties for grade 05kp ( 05кп )
| Weldability: | without limitations. |
| Flakes : | not predisposed |
| Temper brittleness: | not predisposed |
Equivalent steels for grade 05kp ( 05кп )
| USA | Germany | Japan | England | European | Italy | Spain | Bulgaria | Hungary | Poland | Romania | Czechia | Austria | Australia | ||||||||||||||||||||||||||||
| - | DIN,WNr | JIS | BS | EN | UNI | UNE | BDS | MSZ | PN | STAS | CSN | ONORM | AS | ||||||||||||||||||||||||||||
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Types of delivery of grade 05kp ( 05кп )
| В22 - Graded and shaped rolling |
| B23 - Sheets and Strips |
| B24 - Ribbons |
| В32 - Graded and shaped rolling |
| B33 - Sheets and Strips |
| В62 - Steel pipes and connecting parts to them |
| 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 |
05kp ( 05кп ) - 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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