Original
By certification 
Product Introduction
PC steel bar is a kind of low carbon alloy steel bar with heat treatment for high strength pre-stressed concrete pile. It is mainly used in producing port concrete pile, high-rise building foundation concrete pile and pier concrete pile, etc. It has undergone rigorous inspection, the material is superior, and the quality is up to standard.
Features
PC steel bar has high strength, toughness, low relaxation and good weldability. Its wire rod has good quality, low inclusion content and high purity. It has stable mechanical properties and is widely used in the construction of houses, bridges, roads and other projects. It is of high quality and is not easy to crack or rust, so you can use it with confidence.
| Specification (mm） |
Facial shape type |
Cross-sectional size （S/mm2） |
Tensile Strength (MPA） |
Plastic elongation strength (Mpa） |
Relaxation rate （%） |
Percentage elongation at maximum force （%） |
Elogation (MM/M） |
Percentage elongation after fracture （%） |
Surface quaility |
| 7.1 | Spiralgroove | 39.0-41.7 | ≥1420 | ≥1280 | ≤2.0 | ≥3.5 | Take a one-meter PC bar and place it on a flat surface, and the maximum natural rise of inside chord and arc is less than 5.0 mm. |
≥7.0 | No damage and defects which will influence the use is allowed on the surface of the PC bar. Floating rust is allowed. |
| 9 | 62.4-66.5 | ||||||||
| 10.7 | 87.8-93.6 | ||||||||
| 12.6 | 121.9-130.1 | ||||||||
| 14 | 150.2-160.1 |
On-line equipment
Pay-off stand→ Wire pack up device→ Mechanical descaling→ Drawing dies box→ Drawing machine→ Straightening→ 1# Cleaning machine→ Traction machine→ 600kW/8kHz IGBT）Pre-heating power supply（600kW/8kHz IGBT Intermediate frequency induction heating power supply）→ （200kW/30kHz IGBT）Temperature pre-raising power supply（200kW/30kHz IGBT Superaudio induction heating power supply）→ （200kW/50kHz IGBT）Temperature raising power supply（200kW/50kHz IGBT Superaudio induction heating power supply）＋Quenching/Holding→ Quenching water tank→ （300kW/8kHz IGBT）Tempering power supply（300kW/8kHz IGBT Intermediate frequency induction heating power supply）＋Tempering and holding pipe→ Tempering water tank→ 2#Traction machine→ Wire leading tank→ Wire leading tank→ 1 Take-up disc 1→ 2 Take-up disc 2
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