The high quality China GBT Q345GJ-C material is one of the more steel grades we supply, China structural steel and alloy steel. Q345GJ-C is our main production grade, which has been approved by customers in many countries since its initial production, including our Q345GJ-C 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 Q345GJ-C materials, and we are willing to develop together with customers from all over the world.
Also includes Q345GJ-C steel material norm, chemical composition, mechanical properties, datasheet, Q345GJ-C equivalent, heat treatment and temperature process of Q345GJ-C, The peak hardness can be achieved, Contains all of the specification, welding properties, let us in Q345GJ-C this steel grade have a more comprehensive understanding, Download the full Q345GJ-C PDF version of this datasheet.
| C(％) | Si(％) | Mn(％) | P(％) | S(％) | V(%) |
|---|---|---|---|---|---|
| Max 0.20 | Max 0.55 | Max 0.60 | 0.025 | 0.015 | 0.02-0.15 |
| Nb(%) | Al(%) | Ti(%) | |||
| 0.015-0.060 | 0.015 | 0.01-0.10 |
| Rp0.2 (MPa) | Rm (MPa) | Impact KV (J) |
Elongation A (%) |
A Z (%) | Delivery | Hardness HB |
|---|---|---|---|---|---|---|
| 259 (≥) | 474 (≥) | 21 | 33 | 23 | Solution & Aging, Ann, Ausaging, Q+T | 444 |