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A36 is a low-carbon steel containing manganese, phosphorus, sulphur, silicon and copper. A36 has good weldability and high yield strength. A36 carbon steel bars are commonly used for a variety of structural steel components.
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.
| A36 Round Steel Bar Description | ||||
| A36 is a carbon structural steel whose chemical composition and mechanical properties strictly comply with American ASTM standards. A36 steel bars consist mainly of iron, carbon, silicon, manganese, phosphorus, sulphur and other elements. Iron accounts for more than 99% of the total chemical composition. Its carbon content is relatively high, at around 0.2%, ensuring that the steel possesses a certain degree of hardness and toughness. The addition of silicon, manganese and other elements enhances the strength and toughness of the steel. The phosphorus and sulphur content is low, ensuring that the steel bar exhibits good weldability and corrosion resistance. A36 steel bars are used in welded, bolted or riveted constructions for bridges and buildings, as well as for general structural purposes. Owing to its low yield strength, A36 can be used to design lighter-weight structures and equipment, whilst offering good weldability. | ||||
| Product Specifications | ||||
| Product Name | A36 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 | |||
| Flat Steel: General Specifications | 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. | |||
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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.
