The high quality China GBT A71204 material is one of the more steel grades we supply, China structural steel and alloy steel. A71204 is our main production grade, which has been approved by customers in many countries since its initial production, including our A71204 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 A71204 materials, and we are willing to develop together with customers from all over the world.
Also includes A71204 steel material norm, chemical composition, mechanical properties, datasheet, A71204 equivalent, heat treatment and temperature process of A71204, The peak hardness can be achieved, Contains all of the specification, welding properties, let us in A71204 this steel grade have a more comprehensive understanding, Download the full A71204 PDF version of this datasheet.
| C(％) | Si(％) | Mn(％) | P(％) | S(％) | Cr(％) |
|---|---|---|---|---|---|
| 0.17-0.24 | Max 0.40 | 0.80-1.20 | 0.035 | 0.035 | — |
| B(%) | Al(%) | ||||
| 0.0005-0.0035 | 0.02 |
| Rp0.2 (MPa) | Rm (MPa) | Impact KV (J) |
Elongation A (%) |
A Z (%) | Delivery | Hardness HB |
|---|---|---|---|---|---|---|
| 112 (≥) | 643 (≥) | 12 | 34 | 41 | Solution & Aging, Ann, Ausaging, Q+T | 413 |