1.                 The use of PC steel Bar

The PC steel bar is mainly used for building industry, it is the main steel material in pipe pile foundation, has high strength, low usage of metallic material, convenience usage and the quality was easily promised. It has a extensive usage building industry.

2.   The original material of PC BAR

Chemical composition of 30MnSi

C                                      Si                                      Mn                                      P                                            S                                              Cu

0. 27-0. 34                  0. 60-1. 10                0. 90-1. 30                  ＜0. 025                        ＜0. 025                            ＜0. 025

3.   Manufacturing process flow

material-descaling-keepstraight-drawing-knurling-heat-quenching-heat-tempering-test-packing

4.             Grad and technological properties

Nominal diameter: 7. 1mm, 9. 0mm, 10. 7mm, 12. 6mm

Tensile strength ≥ 1420Mpa

Yield strength ≥ 1275Mpa

Elongation ≥ 5%

Low relaxation ≤ 1. 5%

Straightness ≤ 2mm/m

Net weight per coil: 1000Kg(1100Kg)

The steel PC bar of our company accords with JISG3137-1994(Japan) and GB/T5223. 3-2005(China). The amount of products arrives 30, 0000 tons per year, The product sells toward hinterland, Taiwan, Korea, Japan, Vietnam and Malaysia etc. Every year export quantity arrive 50, 000 tons.