Hot rolled ribbed steel-bar

Norminal diameter of the rolled material mm

norminal cross-sectional area mm2  

steel bar weigh per meter                   (linear density)

Norminal weigh,kg/m

Allowable deviation,%

12

112

0.89

±5

14

154

1.21

16

201

1.58

±4

18

254

2.00

20

314

2.47

22

380

2.98

25

491

3.53

28

616

4.83

32

804

6.81

36

1013

7.99

40

1285

9.86

Note 1.According to the requirments of demanding party,the company can produce5 multiples of the rolled material(the norminal diameter of more than 40mm,allowable deviation of the weight:±4%)

     2.Allowable deviations of the weight are quoted for the some steel bar             

     3. Steel bar weight per meter is determined by the nominal diameter, the density of steel 7.8kg/cm2