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Carbon Steel: Properties, Production, Examples and Applications Carbon steel is an iron-carbon alloy containing up to 2.1 wt.% carbon. For carbon steels, there is no minimum specified content of other alloying elements; however, they often contain manganese. The maximum content of manganese, silicon and copper should be less than 1.65 wt.%, 0.6 wt.% and 0.6 wt.%, respectively.
| A572 Round Steel Bar Description | ||||
| A572 steel bar is made from a low-carbon, low-alloy, high-strength steel produced using electric furnace steelmaking technology. Consequently, its primary component is scrap iron. Owing to its well-balanced chemical composition and rigorous process control, A572 steel bar is widely favoured for its high purity and excellent performance. The molten steel casting process not only imparts good density and uniformity to the steel coil, but also ensures that the steel bar possesses superior mechanical properties after cooling. A572 carbon steel bar is widely used in construction, bridge-building, heavy machinery and other sectors. At the same time, it demonstrates outstanding performance in welding, forming and corrosion resistance, thanks to its low-carbon and low-alloy characteristics. | ||||
| Product Specifications | ||||
| 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 50.8–300 mm | |||
| Common Specifications for Flat Steel | 6.35×12.7 mm, 6.35×25.4 mm, 12.7×25.4 mm | |||
| Hexagon Bar – General Specifications | AF 5.8 mm–17 mm | |||
| Square Bar – General Specifications | AF 2 mm–14 mm, AF 6.35 mm, 9.5 mm, 12.7 mm, 15.98 mm, 19.0 mm, 25.4 mm | |||
| Length | 1–6 metres; sizes can be made to order | |||
| Diameter (mm) | Hot-rolled round bar | 25-600 | Cold-Rolled Square Bar | 6-50.8 |
| Hot-Rolled Square Bar | 21-54 | Cold-Rolled Hexagonal Bar | 9.5-65 | |
| Cold-rolled round bar | 6-101.6 | Forged Rebar | 200-1000 | |
| Surface Process | Bright, Polished, Black | |||
| Other Services | Machining (CNC), centreless grinding (CG), heat treatment, annealing, pickling, polishing, rolling, forging, cutting, bending, small-scale machining, etc. | |||
As an experienced steel manufacturer in China, we offer factory-direct supply at competitive prices. By cutting out unnecessary intermediaries, we help our customers source reliable steel products that offer excellent value and cost-effectiveness.
We supply a wide range of metal products, including carbon steel, stainless steel, galvanised steel, aluminium, copper, PPGI/PPGL coils, roofing sheets and more. Our extensive product range enables us to meet the needs of a variety of industries and projects.
Quality is maintained throughout the entire production process. From carefully selected raw materials through to manufacturing, processing and final inspection, every step is strictly monitored to ensure consistent quality and compliance with customer requirements and international standards.
With years of experience in international steel trading, we have established a stable global supply network. Our products are exported to Over 80 countries and regions, serving customers across North America, Europe, South America, Asia, Australia and other markets.
Every project has different material and specification requirements. We offer flexible customisation options covering product dimensions, grades, surface finishes, packaging, processing methods and other specific requirements.
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Find answers to frequently asked questions about our steel products, quality standards, export procedures, customisation services and global delivery solutions. Find out more about how Xinghan Group Co., Ltd. supports customers worldwide with a reliable supply of steel.
Xinghan Group Co., Ltd. specialises in supplying a wide range of steel products, including stainless steel plates, coils, pipes and rods; carbon steel plates, coils and pipes; galvanised steel products; PPGI coils; PPGL coils; aluminium products, copper products, roofing sheets and other bespoke steel solutions to meet a variety of industrial requirements.
Xinghan Group Co., Ltd. is a professional steel supplier based in China, working with reliable production facilities and processing partners to provide high-quality steel products at competitive prices, with a stable supply capacity and professional export services.
We maintain strict control over product quality at every stage, from the selection of raw materials through to production, processing, inspection and dispatch. Our steel products comply with international standards such as ASTM, AISI, DIN, EN and JIS to ensure reliable performance and consistent quality.
Yes. We provide bespoke solutions based on our customers’ specifications, including size, thickness, surface treatment, material grade, cutting, processing and packaging requirements. Our professional team helps customers find the most suitable steel solutions for their projects.
