The high quality Japan JIS SK4M material is one of the more steel grades we supply, Cold rolled special steel strip. SK4M is our main production grade, which has been approved by customers in many countries since its initial production, including our SK4M 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 SK4M materials, and we are willing to develop together with customers from all over the world.
Also includes SK4M steel material norm, chemical composition, mechanical properties, datasheet, SK4M equivalent, heat treatment and temperature process of SK4M, The peak hardness can be achieved, Contains all of the specification, welding properties, let us in SK4M this steel grade have a more comprehensive understanding, Download the full SK4M PDF version of this datasheet.
| C(％) | Si(％) | Mn(％) | P(％) | S(％) | Cr(％) | Ni(％) |
|---|---|---|---|---|---|---|
| 0.90-1.00 | Max 0.35 | Max 0.50 | Max 0.030 | Max 0.030 | Max 0.30 | Max 0.25 |
| Cu(%) | ||||||
| Max 0.25 |
| Rp0.2 (MPa) | Rm (MPa) | Impact KV (J) |
Elongation A (%) |
A Z (%) | Delivery | Hardness HB |
|---|---|---|---|---|---|---|
| 413 (≥) | 931 (≥) | 41 | 34 | 44 | Solution & Aging, Ann, Ausaging, Q+T | 122 |