The high quality China CNS SMn438H material is one of the more steel grades we supply, China Taiwan Structural steel. SMn438H is our main production grade, which has been approved by customers in many countries since its initial production, including our SMn438H round bars, flat bar, forgings, fasteners, tubes, wires, strips, sheets & Plates, as well as a variety of profiles, professional high precision auto-lathe processing manufacturer of clinching fasteners, axes, standoffs, screws, studs, nuts, bolt, OEM parts and special shaped turning partsthe state of delivery includes quenched and tempered, annealed, machined semi-finished products, we also have strict management of the packaging, to avoid material damage from transportation. We are the best supplier of SMn438H materials, and we are willing to develop together with customers from all over the world.
Also includes SMn438H steel material norm, chemical composition, mechanical properties, datasheet, SMn438H equivalent, heat treatment and temperature process of SMn438H, The peak hardness can be achieved, Contains all of the specification, welding properties, let us in SMn438H this steel grade have a more comprehensive understanding, Download the full SMn438H PDF version of this datasheet.
| C(％) | Si(％) | Mn(％) | P(％) | S(％) | Cr(％) | Ni(％) | Mo(％) |
|---|---|---|---|---|---|---|---|
| 0.34-0.41 | 0.15-0.35 | 1.30-1.70 | Max 0.030 | Max 0.030 | Max 0.35 | Max 0.25 | — |
| Rp0.2 (MPa) | Rm (MPa) | Impact KV (J) |
Elongation A (%) |
A Z (%) | Delivery | Hardness HB |
|---|---|---|---|---|---|---|
| 729 (≥) | 526 (≥) | 21 | 21 | 13 | Solution & Aging, Ann, Ausaging, Q+T | 424 |