The high quality Spain UNE C81U material is one of the more steel grades we supply, Spain structural alloy steel. C81U is our main production grade, which has been approved by customers in many countries since its initial production, including our C81U 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 C81U materials, and we are willing to develop together with customers from all over the world.
Also includes C81U steel material norm, chemical composition, mechanical properties, datasheet, C81U equivalent, heat treatment and temperature process of C81U, The peak hardness can be achieved, Contains all of the specification, welding properties, let us in C81U this steel grade have a more comprehensive understanding, Download the full C81U PDF version of this datasheet.
| C(％) | Si(％) | Mn(％) | P(％) | S(％) | Cr(％) | Ni(％) |
|---|---|---|---|---|---|---|
| 0.75-0.84 | 0.15-0.35 | 0.60-0.80 | 0.025 | 0.020 | Max 0.25 | Max 0.25 |
| Rp0.2 (MPa) | Rm (MPa) | Impact KV (J) |
Elongation A (%) |
A Z (%) | Delivery | Hardness HB |
|---|---|---|---|---|---|---|
| 363 (≥) | 475 (≥) | 23 | 42 | 44 | Solution & Aging, Ann, Ausaging, Q+T | 243 |