| Finished reinforcing bar | ASTM A615 Grade 60 | General-purpose reinforced concrete in North America and projects using inch-based bar designations. | Not generally specified by ASTM A615; verify the mill heat analysis. | Not generally specified | Not generally specified | 0.060 | 0.060 | Carbon equivalent is not the primary acceptance criterion. Weldability should not be assumed without chemistry review and a suitable welding procedure. | 60 ksi (420 MPa) | 90 ksi (620 MPa) | Size-dependent minimum elongation, commonly about 8–14% depending on bar size and test length. | Suitable for conventional reinforcement where high ductility and routine welding are not the main design requirements. |
| Finished reinforcing bar | ASTM A706 Grade 60 | Seismic, bridge, infrastructure, and welded reinforcement applications in North America. | 0.300 | 0.500 | 1.500 | 0.035 | 0.045 | Maximum carbon equivalent is typically 0.55. The standard also controls yield-strength variation and requires enhanced ductility compared with conventional A615 reinforcement. | 60 ksi (420 MPa) | 80 ksi (550 MPa) | Higher ductility than A615; minimum elongation is size-dependent and commonly about 12–14%. | Preferred when controlled chemistry, welding, plastic deformation, and seismic performance are important. |
| Finished reinforcing bar | EN 10080 B500B | European construction, infrastructure, and international projects based on Eurocode reinforcement design. | 0.220 | 0.600 | 1.600 | 0.050 | 0.050 | Nitrogen typically ≤0.012%; copper typically ≤0.80%; carbon equivalent value commonly ≤0.50. | 500 MPa | 540–675 MPa (tensile-to-yield ratio 1.08–1.35) | Minimum total elongation at maximum force, Agt: 5%. | A common balanced grade for general structural reinforcement where controlled ductility is required. |
| Finished reinforcing bar | EN 10080 B500C | High-ductility reinforcement for seismic zones and structures requiring significant plastic deformation capacity. | 0.220 | 0.600 | 1.600 | 0.050 | 0.050 | Nitrogen typically ≤0.012%; copper typically ≤0.80%; carbon equivalent value commonly ≤0.50. | 500 MPa | 575–675 MPa (tensile-to-yield ratio 1.15–1.35) | Minimum total elongation at maximum force, Agt: 7.5%. | Best suited to seismic and high-ductility designs, subject to the project specification and national annex. |
| Finished reinforcing bar | ISO 6935-2 B500B | International projects requiring an ISO-based reinforcing steel classification. | 0.220 | 0.600 | 1.600 | 0.050 | 0.050 | Nitrogen is typically limited to 0.012%; carbon equivalent requirements depend on the adopted product specification and national implementation. | 500 MPa | 540–675 MPa (typical ratio 1.08–1.35) | Minimum Agt is commonly 5%; confirm the exact adopted ISO edition and national requirements. | Useful for international procurement, but the purchaser should identify the exact edition, test method, and conformity route. |
| Finished reinforcing bar | GB/T 1499.2 HRB400E | Chinese domestic and export projects requiring enhanced seismic performance. | 0.250 | 0.800 | 1.600 | 0.045 | 0.045 | Carbon equivalent is commonly limited to 0.54. The “E” designation indicates enhanced seismic performance and tighter strength-ratio and ductility requirements. | 400 MPa | 540 MPa | Minimum total elongation at maximum force, Agt: 9%. | A practical choice for Chinese-standard projects and seismic applications; confirm third-party inspection and traceability requirements. |
| Finished reinforcing bar | JIS G 3112 SD390 | Japanese-standard building and civil engineering projects. | 0.290 | 0.400 | 1.300 | 0.040 | 0.040 | Additional chemical and mechanical requirements may vary by bar diameter and product designation. | 390 MPa | 560 MPa | Diameter-dependent elongation, commonly approximately 16% or higher for standard test conditions. | Confirm diameter-specific requirements, rib geometry, bend testing, and compatibility with the Japanese design code. |
| Finished reinforcing bar | BS 4449 B500B | United Kingdom and projects specifying British Standards for carbon steel reinforcement. | 0.220 | 0.600 | 1.600 | 0.050 | 0.050 | Typical limits include nitrogen ≤0.012%, copper ≤0.80%, and carbon equivalent value ≤0.50. | 500 MPa | 540–675 MPa | Minimum Agt: 5%; exact requirements depend on product diameter and the applicable edition. | Confirm whether the project requires current BS 4449 certification, UKCA-related documentation, or another conformity scheme. |
| Hot-rolled wire rod feedstock | SAE J403 1008 | Low-carbon wire rod for cold heading, mesh, tie wire, drawing, and selected reinforcement-processing routes. | 0.100 | Not usually specified as a fixed maximum | 0.300–0.500 | 0.040 | 0.050 | Low-carbon, highly formable steel. Surface quality, scale condition, and internal cleanliness are critical for drawing and downstream forming. | Not standardized for wire rod delivery; depends on rolling condition. | Typically about 300–400 MPa in hot-rolled delivery, depending on diameter and mill practice. | High formability; final elongation depends on diameter, cooling, and any subsequent drawing or annealing. | Choose for ductility and forming rather than high finished-bar strength. Confirm decarburization, inclusions, and surface defects. |
| Hot-rolled wire rod feedstock | SAE J403 1018 | General-purpose wire rod for mesh, fabrication, tie products, and moderate-strength drawn wire. | 0.150–0.200 | Not usually specified as a fixed maximum | 0.600–0.900 | 0.040 | 0.050 | Higher carbon and manganese than 1008 provide increased strength while retaining useful cold-forming capability. | Not standardized for wire rod delivery; depends on processing condition. | Typically about 440–550 MPa in hot-rolled or processed conditions. | Moderate-to-good formability; performance varies with reduction ratio and heat treatment. | Appropriate where a balance between strength and formability is required; not a direct substitute for certified seismic rebar. |
| Hot-rolled wire rod feedstock | SAE J403 1022 | Higher-strength wire rod for drawn wire, fasteners, mesh, and applications needing greater strength than low-carbon grades. | 0.180–0.230 | Not usually specified as a fixed maximum | 0.700–1.000 | 0.040 | 0.050 | Higher strength can reduce drawability and bendability compared with 1008 or 1018; process design must be verified. | Not standardized for wire rod delivery; depends on rolling and processing condition. | Typically about 500–650 MPa after suitable processing. | Moderate formability; elongation is strongly dependent on final diameter and cold reduction. | Use when strength is prioritized, while confirming die wear, drawing schedule, surface quality, and final-product ductility. |
| Technical note: Chemical limits and mechanical values are representative requirements or commonly used grade limits. The purchaser should always verify the current edition of the referenced standard, bar diameter, delivery condition, test method, carbon equivalent, rib geometry, bend or rebend performance, heat number traceability, and required inspection certificates before placing an international order. |