Diameter range: OD5.5-10 per weight about 2T
Japan standard: SR235 SR295
South Koreas standard: K S D3504-2011
Domestic: GB1499.1-2008
1.Trademark and chemical component
Rebar trademark and chemical component should Comply with the provisions of the table 1
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 6.5 8 10 |
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
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