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Top Notch A572/S355JR Round Steel Bar
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A572/S355JR Round Steel Bar Description
A572 steel bars are crafted from low-carbon, low-alloy high-strength steel using electric furnace steelmaking technology, with the primary component being scrap iron. Thanks to its well-balanced composition design and stringent process control, A572 steel bars are highly sought after for their high purity and exceptional performance. The molten steel pouring manufacturing method not only ensures good density and uniformity of the steel coil, but also guarantees superior mechanical properties of the steel bar after cooling. Widely utilized in construction, bridges, heavy machinery, and other fields, A572 carbon steel bars exhibit remarkable performance in welding, forming, and corrosion resistance, owing to their low carbon and low alloy characteristics.
Product Parameters
| Product Name | A572/S355JR Round Steel Bar | |||
| Standard | EN/DIN/JIS/ASTM/BS/ASME/AISI, etc. | |||
| Common Round Bar Specifications | 3.0-50.8 mm, Over 50.8-300mm | |||
| Flat Steel Common Specifications | 6.35x12.7mm, 6.35x25.4mm, 12.7x25.4mm | |||
| Hexagon Bar Common Specifications | AF5.8mm-17mm | |||
| Square Bar Common Specifications | AF2mm-14mm, AF6.35mm, 9.5mm, 12.7mm, 15.98mm, 19.0mm, 25.4mm | |||
| Length | 1-6meters, Size Accept Custom | |||
| Diameter(mm) | Hot Rolling Round Bar | 25-600 | Cold Rolling Square Bar |
6-50.8 |
| Hot Rolling Square Bar |
21-54 |
Cold Rolling Hexagon Bar |
9.5-65 |
|
| Cold Rolling Round bar | 6-101.6 | Forged Rebar |
200-1000 |
|
| Surface Process | Bright, Polished, Black | |||
| Other Services | Machining(cnc), Centerless Grinding(cg), Heat Treatment, Annealing, Pickling, Polishing, Rolling, Forging, Cutting, Bending, Small Machining, etc. | |||
| Scope of Application | ASTM A572 carbon steel low-alloy steel is widely used as bridge panels, support plates, mechanical mounting plates, etc. for construction equipment, transmission towers, racks and other equipment. | |||
Chemical Composition
| A572 | C | Mn | P | S | Si |
| Grade42 | 0.21 | 1.35 | 0.03 | 0.03 | 0.15~0.4 |
| Grade50 | 0.23 | 1.35 | 0.03 | 0.03 | 0.15~0.4 |
| Grade60 | 0.26 | 1.35 | 0.03 | 0.03 | 0.40 |
| Grade65 | 0.23~0.26 | 1.35~1.65 | 0.03 | 0.03 | 0.40 |
Mechanical Properties
| A572 | Yield Strength(Ksi) | Tensile Strength(Ksi) | Elongation % 8inches |
| Grade42 | 42 | 60 | 20 |
| Grade50 | 50 | 65 | 18 |
| Grade60 | 60 | 75 | 16 |
| Grade65 | 65 | 80 | 15 |
Physical Performance
| Physical Performance | Metric | Imperial |
| Density | 7.80g/cc | 0.282 lb/in³ |
Equivalent Material
| EU | German Standard | Japanese Standard | French Standard | British Standard | Canada | Italy | Spain | National Standard | International | Portugal | India |
| EN | DIN,WNr | JIS | AFNOR | BS | HG | UNI | UNE | GB | ISO | NP | IS |
| S355JR | St52-3 | SM490A | E36-2 | 50B | 350W | Fe510B | AE355B | Q345B | E355C | FE510-B |
