Shandong Heyixin Metal Materials Co., Ltd
Shandong Heyixin Metal Materials Co., Ltd
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40 steel -structural high-quality carbon steel, designed for construction and engineering. It conforms to the GOST 1050-88 and DSTU 7809 standard.
Classification: High-grade structural carbon steel.
Product: Steel plates in sheets and coils, rolled products, including shaped.
| С | Si | Mn | Ni | P | S | Cr | Cu |
| 0.37-0.45 | 0.17-0.37 | 0.50-0.80 | ≤0.30 | ≤0.035 | ≤0.040 | ≤0.25 | ≤0.30 |
| Creep limit, not less | Short-term tensile strength ReH, not less | Minimum elongation ratio, %, not less | Contraction ratio, %, not less |
| 335 | 570 | 19 | 45 |
| US | 1040, 1042, G10400, G10420 |
| Japan | S40C, S43C, SWRCH38K, SWRCH40K |
| EU | 1.1186, C35, C40, C40E |
| China | 40, ML40 |
| Sweden | 1555, 1650 |
| Poland | 40, 40A, 40rs, D40, P40 |
| Romania | OLC40, OLC40X |
| Czech Republic | 12041 |
| Australia | 1040, M1040 |
| South Korea | SM40C |
40 steel is widely used in piston rods, gear wheels, crankshafts, ring gears, flywheels, axles and bolts. It also features in medium-sized components like long axles, feed rods, cogs, etc, that are used in components for pipe fittings following preliminary quenching, which is conducted during the assembly of agricultural vehicles. 40 steel is used in fastenings for pipelines/boilers for thermal and nuclear power plants, and block/connecting components for turbines.
40 steel has limited welding capacity (to achieve a high-quality weld, the steel must be pre-heated before and annealed after the welding). The welding methods for this steel are manual-arc, automatic-arc and electroslag welding. Limitless contact welding can be applied.