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// Product Description //
Round steel is a long strip of steel with a solid cross section. Its specifications are expressed in millimeters in diameter. They are divided into three types: hot-rolled, forged, and cold-drawn. The hot-rolled specifications are 5.5-250 mm. They are often used as steel bars, bolts, and various Mechanical parts, round steel larger than 25 mm is mainly used to manufacture mechanical parts and seamless steel tube billets.

| Product Name | carbon steel round bar |
| Place of Origin | Shandong, China |
| Standard | AiSi, ASTM, bs, DIN, GB, JIS |
| Grade | HRB335/HRB400/HRB500 |
| Length | 6m/9m/12m or as customer request |
| Tolerance | ±1% |
| Tensile strength | 300N/mm² , 360N/mm² , 435N/mm² |
| Technique | Hot Ribbed Steel Rebar |
| Price Term | CIF CFR FOB EX-WORK |
| MOQ | 1 Ton |
| Payment Term | 30%T/T Advance + 70% Balance |
| Packing | Standard Sea-worthy Packing |
| Type | Plate |
| Certification | ISO,CE |
| C | Cu | Fe | Mn | P | Si | S |
| 0.25~0.290 | 0.20 | 98.0 | 1.03 | 0.040 | 0.280 | 0.050 |
| A36 | ultimate tensile strength | Tensile strength and yield strength | Break Elongation (in 200mm) | Break Elongation (in 50mm) | modulus of elasticity | Volume modulus (typical value of steel) | Poisson ratio | modulus of shearing |
| the metric system | 400~550MPa | 250MPa | 20.0% | 23.0% | 200GPa | 140GPa | 0.260 | 79.3GPa |
| British system | 58000~79800psi | 36300psi | 20.0% | 23.0% | 29000ksi | 20300ksi | 0.260 | 11500ksi |
| physical property | the metric system | British system |
| density | 7.85 g/cm3 | 0.284 lb/in3 |
Bolt, riveted or welded structures for bridges, construction and oil rigs, etc.
It is used for forming storage tanks, bin, bearing plate, fixture, ring, formwork, clamp, fixture, sprocket, cam, gear, bottom plate, forgings, decoration engineering, piles, supports, automobile and agricultural equipment, frame, mechanical parts, etc.
| Guo Biao GB | European standard EN | American-Standard ASTM | De standard DIN, WNr | day mark JIS | The French standard, AFNOR | BS BS | Canada HG |
| Q235B | S235JR | A283C | St37-2 | SM400A | E24-2 | 40A/40B | 230G |
| Italy UNI | India IS | Switzerland SS | ONORM, Australia | Norway NS | Spain UNE | international standard ISO | Portuguesa NP |
| Fe360B | IS2062 | 1311/1312 | RSt360B | NS12123 | AE235B-FN | E235 |
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