25(JIS S25C) Hot rolled Hot Rolled Coil DSTU 7809 and GOST 1050-88
Characteristics of steel grade 25
Steel grade 25 is a quality structural carbon steel produced to the requirements of DSTU 7809 and GOST 1050-88.
Classification: Quality structural carbon steel.
Products: Steel plates, sheets and coils, semi-finished products, rolled sections including shapes.
Chemical composition of steel grade 25 (ladle analysis) according to DSTU 7809, %
| С | Si | Mn | S | P | Cr |
| 0,22 - 0,30 | 0,17 - 0,37 | 0,50 - 0,80 | ≤0,040 | ≤0,035 | ≤0,25 |
Mechanical properties of steel grade 25 after normalizing
| Yield strength, N/mm2 (min) | Tensile strength, N/mm2 (min) | Elongation, % (min) | Reduction of area, % (min) |
| 275 | 450 | 23 | 50 |
Equivalents of steel grade 25
| USA | 1025, G10250, M1025 |
| Germany | 1.0406, 1.1158, C25, C25E, C26D, Ck25 |
| Japan | S25C, S28C, SWRCH25K |
| European Union | 1.1158, 2C25, C25, C25E |
| China | 25, 25Z, ML25 |
| Sweden | 1450 |
| South Korea | SM25C, SM28C |
Application:
Steel grade 25 is used to make flanges, bolts, axles, shafts, latches, washers, levers, other fastenings and non-critical parts, e.g. screws, bushes, etc. This steel is widely used for the manufacture of parts subjected to thermochemical treatment (carburizing, nitrocarburizing, nitriding, boriding), which provides high surface wear resistance and hardness with low core strength.
Welding
No welding restrictions except for thermochemically treated parts. Welding methods: manual metal arc welding, submerged arc welding, electric resistance welding.
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