The high quality China CNS SUM31L material is one of the more steel grades we supply, China Taiwan Structural steel. SUM31L is our main production grade, which has been approved by customers in many countries since its initial production, including our SUM31L 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 SUM31L materials, and we are willing to develop together with customers from all over the world.
Also includes SUM31L steel material norm, chemical composition, mechanical properties, datasheet, SUM31L equivalent, heat treatment and temperature process of SUM31L, The peak hardness can be achieved, Contains all of the specification, welding properties, let us in SUM31L this steel grade have a more comprehensive understanding, Download the full SUM31L PDF version of this datasheet.
| C(％) | Mn(％) | P(％) | S(％) |
|---|---|---|---|
| 0.14-0.20 | 1.00-1.30 | 0.04 | 0.08-0.13 |
| Pb(%) | |||
| 0.10-0.35 |
| Rp0.2 (MPa) | Rm (MPa) | Impact KV (J) |
Elongation A (%) |
A Z (%) | Delivery | Hardness HB |
|---|---|---|---|---|---|---|
| 396 (≥) | 497 (≥) | 13 | 21 | 24 | Solution & Aging, Ann, Ausaging, Q+T | 124 |