| Product Name | AISI 4140 Carbon 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 |