8mm Rebar – Deformed Steel Bar (HRB400 / HRB500)
Product Overview
Jingye supplies 8mm rebar, a hot-rolled ribbed deformed bar with a nominal diameter of 8 mm. The nominal mass is 0.395 kg per metre and the nominal cross-sectional area is 50.3 mm2. This size is rolled as mill coil and sold by weight, so there are approximately 2,532 metres to the tonne; cut into 12 m lengths that is about 211 bars to the tonne.
This size is produced as coiled rebar only, because straight bars start at 12 mm. It is normally specified for welded mesh, stirrups and slab reinforcement. All bars carry transverse ribs for mechanical interlock with concrete. Grades are HRB400, HRB400E, HRB500 and HRB500E, and the applicable standards are GB 1499.2, coiled rebar.
Grades and Standards
| Item | Detail |
| Grades | HRB400, HRB400E, HRB500 and HRB500E |
| Applicable standards | GB 1499.2, coiled rebar |
| Inspection | Chemical composition, yield strength, tensile strength, elongation and bend test per heat |
| Certification | Manufactured under ISO 9001 and ISO 14001; mill test certificate with every shipment |
Size Data
| Property | Value |
| Nominal diameter | 8 mm |
| Nominal mass | 0.395 kg/m |
| Nominal cross-sectional area | 50.3 mm² |
| Bars per tonne (equivalent at 12 m) | 211 |
| Metres per tonne | 2,532 |
| Standard length | Mill coil |
Key Features
- Transverse ribs give a strong mechanical bond with concrete.
- Available in seismic E grades where specified, with higher elongation.
- Production to multiple national standards from one supply chain.
- Cut-to-length and bundling arranged on request.
Applications
- It is normally specified for welded mesh, stirrups and slab reinforcement.
- Reinforced concrete buildings and industrial structures.
- Infrastructure including bridges, metro and railways.
Frequently Asked Questions
- What is the nominal mass of 8mm rebar?
8mm rebar has a nominal mass of 0.395 kg per metre and a nominal cross-sectional area of 50.3 mm2. This size is rolled as mill coil and sold by weight, so there are approximately 2,532 metres to the tonne; cut into 12 m lengths that is about 211 bars to the tonne. The figures follow GB 1499.2 nominal values.
- What length is 8mm rebar supplied in?
Coiled rebar is supplied in mill coils, since this size is not rolled as straight bar.
- Do you supply test certificates for 8mm rebar?
Yes. Every heat is tested for chemical composition, yield strength, tensile strength, elongation and bend performance, and the shipment is released with a mill test certificate.
