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1.Trademark and chemical component
Rebar trademark and chemical component should Comply with the provisions of the table1
| Trademark | Chemical component(qualitygrade ) less than or equal to | ||||
| HPB300 | C | Si | Mn | P | S |
| 0.25 | 0.55 | 1.5 | 0.045 | 0.045 | |
| Classes | Trademark | trademark constitute | English letters meanings |
| hot-rolled plain bar | HPB300 | Consist of HPB+Characteristic value of yield strength value of yield strength | Abbreviation of HPB-Hot rolled Plain Bars |
2.Plain round bars cross-section shape and permissible variation in dimension
Plain round rebar diameter tolerance and out-of-roundness should comply with table3
| Nominal diameter | Tolerance | out-of-roundness |
| 5.5 | 0.3 | 0.3 |
3.Curvature and end
Straight bar steel bending should not affect the normal use.Bending is not more than 0.4% of the total length of steel bar. Rebar end should cut straight,local deformation should not affect using
Steel Rebar Coil
