4140 Alloy Metal Steel Round Bar in Stock 300mm

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.

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In China, you can find us active in the field of angle steel beams for residential construction, stainless steel threaded pipe bulkhead fitting, stainless steel flex steel railing pipe. We establish friendship and credibility in operation and cooperation, and further expand operation and deepen cooperation through friendship and credibility. We welcome colleagues from different backgrounds. We strive to create and innovate, and benefit from the company's diverse work environment. With the development of the economy, the globalization of the market, the customization of products and the specialization of business technologies, the competition has become more and more fierce.

Product Introduction

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 have been striving to bring you quality products at the competitive prices in the industry of 4140 Alloy Metal Steel Round Bar in Stock 300mm. We truly look forward to hearing your feedback. Your comments and suggestions help us to continually serve you better. We regard quality as the guarantee for the development of the enterprise, and the product qualification rate is 100%, and there has never been any product that does not meet the standard. We form a good atmosphere of consistent philosophy, reasoning and truthfulness, harmony and tolerance by creating a new corporate culture.

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