The high quality China GBT Q345q material is one of the more steel grades we supply, China structural steel and alloy steel. Q345q is our main production grade, which has been approved by customers in many countries since its initial production, including our Q345q 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 Q345q materials, and we are willing to develop together with customers from all over the world.
Also includes Q345q steel material norm, chemical composition, mechanical properties, datasheet, Q345q equivalent, heat treatment and temperature process of Q345q, The peak hardness can be achieved, Contains all of the specification, welding properties, let us in Q345q this steel grade have a more comprehensive understanding, Download the full Q345q PDF version of this datasheet.
| C(％) | Si(％) | Mn(％) | P(％) | S(％) |
|---|---|---|---|---|
| Max 0.20 | Max 0.60 | 1.00-1.60 | 0.035 | 0.035 |
| Rp0.2 (MPa) | Rm (MPa) | Impact KV (J) |
Elongation A (%) |
A Z (%) | Delivery | Hardness HB |
|---|---|---|---|---|---|---|
| 515 (≥) | 679 (≥) | 21 | 24 | 22 | Solution & Aging, Ann, Ausaging, Q+T | 234 |