BBN steel is specialized in providing ASTM EN GB/T DIN JIS steel products, meeting internationally recognized quality and consistency standards. One of the most frequently-used materials BBN offer is ASTM A572 steel. ASTM A572 Grade 55/A572 Gr. 55 HSLA structure steel plate is produced in strict accordance with ASTM A572/ A572M standard, which is just the same with A572 Gr. 50 steel plates, one of the most popular low alloy structure steel materials used in the world.
ASTM A572 Grade 55/A572 Gr. 55 HSLA structure steel plate chemical composition:
| Grade | C % | Si % | Mn % | P % | S % | V % | Ni % | Co % |
| A572 Gr.55 | 0.25 | 0.40 | 1.35 | 0.040 | 0.050 | 0.060 | 0.015 | 0.050 |
ASTM A572 Grade 55/A572 Gr. 55 HSLA structure steel plate mechanical property:
| Grade | Thickness(mm) | Min Yield (Mpa) | Tensile(MPa) | Elongation(%) |
| A572 Grade 55 | 8mm-50mm | 380Mpa | 485Mpa | 20% |
| 50mm-200mm | 380Mpa | 485Mpa | 17% |
ASTM A572 Grade 55 steel plates are usually used in structural applications that require high strength per weight ratio, such as heavy construction equipment, building structures, heavy duty anchoring systems, boom sections, truck frames, poles, liners, conveyors, structural steel shapes, etc.
Just like you, 70% customers choose long-term cooperation with BBN steel not only for our good product and service quality, good reputation in the international market, but also for our experienced one-stop raw material supply and further steel processing!
