| Grade : | 15Kh5M ( 15Х5М ) ( Х5М ) |
| Classification : | Low alloy high-temperature steel |
| Equivalent grades: | Go here |
Chemical composition in % for grade 15Kh5M ( 15Х5М )
| C | Si | Mn | Ni | S | P | Cr | Mo | W | V | Ti | Cu |
| max 0.15 | max 0.5 | max 0.5 | max 0.6 | max 0.025 | max 0.03 | 4.5 - 6 | 0.45 - 0.6 | max 0.3 | max 0.05 | max 0.03 | max 0.2 |
Temperature of critical points for grade 15Kh5M ( 15Х5М ).
| Ac1 = 815 , Ac3(Acm) = 848 , Ar3(Arcm) = 775 , Ar1 = 718 |
Mechanical properties under Т=20oС for grade 15Kh5M ( 15Х5М )
| Assortment | Dimension | Direct. | sв | sT | d5 | y | KCU | Heat treatment |
| - | mm | - | MPa | MPa | % | % | kJ / m2 | - |
| Pipe hot strain, GOST 550-75 | 392 | 216 | 22 | 50 | 1180 | |||
| Bar, GOST 20072-74 | Ø 90 | 390 | 215 | 22 | 50 | 1180 | Annealing 840 - 860oC,Cooling oven, | |
| Sheet trick, GOST 7350-77 | 470 | 235 | 18 | Annealing 840 - 870oC,Cooling air, |
| Brinell hardness for 15Kh5M ( 15Х5М ) (hot-rolled, annealing) , GOST 20072-74 | HB 10 -1 = 217 MPa |
| Brinell hardness for 15Kh5M ( 15Х5М ) , Pipe GOST 550-75 | HB 10 -1 = 170 MPa |
Technological properties for grade 15Kh5M ( 15Х5М )
| Weldability: | hard weldability. |
| Flakes : | predisposed |
| Temper brittleness: | not predisposed |
Physical properties for grade 15Kh5M ( 15Х5М )
| 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 | 2.11 | 7750 | 430 | |||
| 100 | 11.3 | 37 | 7730 | 483 | ||
| 200 | 11.6 | 36 | 7700 | |||
| 300 | 11.9 | 35 | 7670 | |||
| 400 | 1.78 | 12.2 | 34 | 7640 | ||
| 500 | 1.45 | 12.3 | 33 | 7610 | ||
| 600 | 1.02 | 12.5 | 7580 | |||
| T | E 10- 5 | a 10 6 | l | r | C | R 10 9 |
Equivalent steels for grade 15Kh5M ( 15Х5М )
| USA | Germany | Japan | France | European | Italy | China | Hungary | Poland | Romania | Czechia | |||||||||||||||||||||||||||||
| - | DIN,WNr | JIS | AFNOR | EN | UNI | GB | MSZ | PN | STAS | CSN | |||||||||||||||||||||||||||||
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Types of delivery of grade 15Kh5M ( 15Х5М )
| В22 - Graded and shaped rolling |
| B23 - Sheets and Strips |
| В32 - Graded and shaped rolling |
| B33 - 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 |
15Kh5M ( 15Х5М ) - Low alloy high-temperature 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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