The high quality Austria ONORM St03FK4a material is one of the more steel grades we supply, Austrian structural steel. St03FK4a is our main production grade, which has been approved by customers in many countries since its initial production, including our St03FK4a 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 St03FK4a materials, and we are willing to develop together with customers from all over the world.
Also includes St03FK4a steel material norm, chemical composition, mechanical properties, datasheet, St03FK4a equivalent, heat treatment and temperature process of St03FK4a, The peak hardness can be achieved, Contains all of the specification, welding properties, let us in St03FK4a this steel grade have a more comprehensive understanding, Download the full St03FK4a PDF version of this datasheet.
| C(％) | Si(％) | Mn(％) | P(％) | S(％) |
|---|---|---|---|---|
| 0.1 | 0.15 | 0.20-0.45 | 0.03 | 0.030 |
| Rp0.2 (MPa) | Rm (MPa) | Impact KV (J) |
Elongation A (%) |
A Z (%) | Delivery | Hardness HB |
|---|---|---|---|---|---|---|
| 841 (≥) | 434 (≥) | 33 | 24 | 44 | Solution & Aging, Ann, Ausaging, Q+T | 313 |