The high quality China GBT 20G material is one of the more steel grades we supply, China structural steel and alloy steel. 20G is our main production grade, which has been approved by customers in many countries since its initial production, including our 20G 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 20G materials, and we are willing to develop together with customers from all over the world.
Also includes 20G steel material norm, chemical composition, mechanical properties, datasheet, 20G equivalent, heat treatment and temperature process of 20G, The peak hardness can be achieved, Contains all of the specification, welding properties, let us in 20G this steel grade have a more comprehensive understanding, Download the full 20G PDF version of this datasheet.
| C(％) | Si(％) | Mn(％) | P(％) | S(％) |
|---|---|---|---|---|
| 0.17-0.24 | 0.17-0.37 | 0.35-0.65 | 0.03 | 0.03 |
| Rp0.2 (MPa) | Rm (MPa) | Impact KV (J) |
Elongation A (%) |
A Z (%) | Delivery | Hardness HB |
|---|---|---|---|---|---|---|
| 595 (≥) | 291 (≥) | 23 | 31 | 43 | Solution & Aging, Ann, Ausaging, Q+T | 412 |