quality control, organization and management
Standard: YB/T 111-1997
pc steel bar
The PC steel bar is mainly used for building industry, it is the main steel material in pipe pile foundation
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 |
0.28-0.34 | 0.70-2.3 | 0.50-1.90 | 0-0.03 | 0-0.035 | 0.030 |
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 ≥ 1460Mpa
Yield strength ≥ 1275Mpa
Elongation ≥ 5%
Low relaxation ≤ 1.5%
Straightness ≤ 2mm/m
Net weight per coil: 1000Kg(1100Kg).
