The high quality Romania STAS/SR J-55 material is one of the more steel grades we supply, Structural steel. J-55 is our main production grade, which has been approved by customers in many countries since its initial production, including our J-55 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 J-55 materials, and we are willing to develop together with customers from all over the world.
Also includes J-55 steel material norm, chemical composition, mechanical properties, datasheet, J-55 equivalent, heat treatment and temperature process of J-55, The peak hardness can be achieved, Contains all of the specification, welding properties, let us in J-55 this steel grade have a more comprehensive understanding, Download the full J-55 PDF version of this datasheet.
| P(％) | S(％) |
|---|---|
| 0.040 | 0.060 |
| Rp0.2 (MPa) | Rm (MPa) | Impact KV (J) |
Elongation A (%) |
A Z (%) | Delivery | Hardness HB |
|---|---|---|---|---|---|---|
| 474 (≥) | 542 (≥) | 32 | 12 | 44 | Solution & Aging, Ann, Ausaging, Q+T | 113 |