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Rock Bolt

Pubtime2013/1/15 16:59:35Hits1118

Rock Bolt

1.Commodity: Rock Bolt for the Prestressing of Concrete

2.Grade: PSB785,PSB830,PSB930,PSB1080

3.Length:6m-12m

5.Diameter: 15mm,18mm,25mm,32mm,40mm,50mm

6.Packing: In bundle 

Steel Grade

Yield

Strength

Tensile

Strength

Elongation

Uniform

Elongation

Stress Relaxation

Mpa

Mpa

Original Stress

Relaxation Rate

After 1000h

Relaxation

Rate After 10h

PSB500

500

630

10%

 

 

3%

1.5%

PSB785

785

980

7%

3.5%

0.8R

3%

 

PSB830

830

1030

6%

PSB930

930

1080

6%

PSB1080

1080

1230

6%

2.5%

 

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