
Alloy Steel Heavy Duty A193 B7 Plain Chrome Plated Balck Stud Bolt and Nuts
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.
Through independent innovation, we have made every effort to develop new high tensile zinc coated steel wire, WELDED PIPE, structural metal decks, giving new connotation and vitality to the traditional products. We actively adapt to the new normal of social and economic development and accelerate the modernization of development. Our communication philosophy is that honesty is effective. Over the years, we have always regarded integrity as the criterion for business operation and employee behavior, and we rely on integrity to win users and rely on integrity to win the market.
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



We will continue to create high-quality products for industry users under the guidance of our business philosophy, make unremitting efforts for the development of Alloy Steel Heavy Duty A193 B7 Plain Chrome Plated Balck Stud Bolt and Nuts industry, and continue to strive to help customers achieve more profits. It is our honor to treat customers with integrity and win customers' satisfaction with our sincere service. We encourage employees' subjective initiative, optimize the employment environment, recruit talents, and focus on the cultivation of employees' moral cultivation, scientific and technological knowledge and business skills.
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