The transverse rib geometry of imported rebar is mainly ordinary square thread or ordinary oblique square thread. The transverse rib geometry of domestic rebar mainly includes spiral shape, herringbone shape and crescent shape. The order principle of rebar is generally based on the mechanical process performance or mechanical strength index on the basis of meeting the gripping performance requirements required by engineering design.
Definition: Seismic rebar is a kind of hot rolled ribbed steel bar, which is widely used in construction engineering. It is produced by small rolling mills, the production process includes the steel through high temperature pressing and other steps into hot-rolled ribbed steel bars, some of which also undergo several hours of cold working in the final stage of the process.
Logo: In the rebar symbol, such as "400E", where "E" represents seismic rebar and "400" represents grade 3 steel bar. "E" is the symbol of seismic resistance of steel rebar
Classification of steel:
First grade steel: HPB235, Q235;
Secondary steel: HRB335, HRB335E, HRBF335E;
Grade 3 steel: HRB400, HRB400E, HRBF400E;
Grade Four steel: HRB500, HRB500E, HRBF500E.
| Product Name | Rebar |
| Material | HRB400,HRB400E,HRB500,HRB500E,ASTM A53 GrA,GrB;STKM11,ST37,ST52,16Mn |
| Size | 6mm,8mm,10mm, 12mm, 13mm, 14mm, 16mm, 20mm, 22mm, 25mm, 30mm, 32mm, 40mm,50mm |
| Length | 5m-14m,5.8m,6m,10m-12m,12m or as customer's actual reques |
| Standard | BS,GB,JIS, ASTM, AISI,etc. |
| Grade | Grade A, Grade B, Grade C |
| Section Shape | Spiral Shap,Herringbone Shap,Crescent Shap |
| Technique | Steel Rebar Iron Rod |
| Packing | Bundle, or with all kinds of colors PVC or as your requirements |
| Ends | Plain end/Beveled,protected by plastic caps on both ends, cut quare,grooved,threaded and coupling,etc. |
| Surface Treatment | 1. Galvanized2. PVC,Black and color painting
3. Transparent oil,anti-rust oil
4. According to clients requirement |
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| Certificates | API ISO9001-2008,SGS.BV |
| Delivery Time | Usually within 10 days after receipt of advance payment |
| Item | Grade | Specification | Standard |
| Chinese Standard Deformed Steel Bar | HRB300 | 6-10MM | GB1499.2-2007 |
| Anti-shock Deformed Steel Bar | HRB300 | 6-10MM | GB1499.2-2007 |
| English Standard Deformed Steel Bar | 460B 500B | 10-50MM | BS4449-1997 |
| 6-12MM | BS4449-2005 |
| American Standard Deformed Steel Bar | Gr.40 Gr.60 Gr.75 Gr.80 | 8-40MM | ASTM A615/615M-2013 |
| Australian Standard Deformed Steel Bar | 500N | 12-36 | ASNZS4672-2001 |
| Malaysia Standard Deformed Steel Bar | B500B | 10-40 | MS-146-2014 |
| Korea Standard Deformed Steel Bar | SD400 SD500 SD600 | 10-32 | KS D3504-2009 |
| Grade of reinforcement | Analysis item | %Chemical composition (mass fraction) % |
Grade 40
Grade 60
Grade 75
Grade 80
Grade 100 | Melting analysis | C | Mn | P | S |
| - | - | ≤0.060 | - |
| Finished product analysis |
| - | - | ≤0.075 | - |
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Note: The chemical composition of carbon manganese phosphorus sulfur should be indicated on the quality certificate provided by the manufacturer.
| Grade of reinforcement | Yield strength R ksi [MPa] | RTensile strength R ksi [MPa] | Elongation after fracture % LQ-200mm |
| 3 #[10] | 4#[31]-6#[19] | 7# [22]-8#[25] | 9#[29]-20#[64] |
| ≥ | ≥ | ≥ | ≥ | ≥ | ≥ |
| Grade 40 | 40 [280] | 60 [420] | 11.0 | 12.0 | / | / |
| Grade 60 | 60 [420] | 90 [620] | 9.0 | 9.0 | 8.0 | 7.0 |
| Grade 75 | 75 [520] | 100 [690] | 7.0 | 7.0 | 7.0 | 6.0 |
| Grade 80 | 80 [550] | 105 [725] | 7.0 | 7.0 | 7.0 | 6.0 |
| Grade 100 | 100 [690] | 115 [790] | 7.0 | 7.0 | 7.0 | 6.0 |
Hot rolled, cold rolled, cold drawn steel bars, as well as Ⅳ grade steel by heat treatment of heat treatment of steel bars, the strength is higher than the former.
