2021 High quality I Iron - Cold Formed Channel Steel – JINBAICHENG

Product Introduction

Standard: ASTM, BS, GB, JIS
Grade: ss400-ss540 series
Origin: Shandong, China
Brand name: jinbaicheng
Model: 50 * 2.5-250 * 80mm
Type: equal
Application: Architecture
Tolerance: according to customer requirements
Processing services: punching and cutting

Size: 50 * 2.5-250 * 80m
Length: 6-12M
Transport type: container or bulk carrier
Delivery date: 15-60
Price terms: FOB / CFR CIF
Use: transmission tower, building, ship
Loading port: Tianjin Qingdao Shanghai
Grade: SS400 / Q235B / s235jr
Technology: Hot Rolling
Certification: ISO9001

Product Display

Classification

There are many kinds of cold-formed steel sections, including open, semi closed and closed sections. The main products are cold-formed channel steel, angle steel, Z-shaped steel, cold-formed corrugated steel plate, square pipe, rectangular pipe, electric welding special-shaped steel pipe, rolling shutter door, etc. The thickness of cold-formed section steel usually produced is less than 6mm and the width is less than 500mm. There are more than 400 specifications and varieties commonly used in China, such as equilateral angle steel (limb length 25 ~ 75mm), inner crimping angle steel (limb length 40 ~ 75mm), channel steel (height 25 ~ 250mm), inner crimping channel steel (height 60 ~ 250mm), crimping Z-section steel (height 100 ~ 180mm). Products are widely used in mining, construction, agricultural machinery, transportation, bridges, petrochemical, light industry, electronics and other industries.

Material Science

Cold-formed steel is the main material for making light steel structures, and it is made of cold-formed steel plates or steel strips. Its wall thickness can not only be made very thin, but also greatly simplifies the production process and improves production efficiency. It can produce various profiles and cold-formed steels of different materials with uniform wall thickness, which are difficult to produce by general hot rolling methods, but with complex cross-sectional shapes. In addition to being used in various building structures, cold-formed steel is also widely used in vehicle manufacturing and agricultural machinery manufacturing. There are many varieties of cold-formed steel, which are divided into open, semi-closed and closed according to the section. According to the shape, there are cold-formed channel steel, angle steel, Z-shaped steel, square tube, rectangular tube, special-shaped tube, rolling shutter door, etc. The latest standard 6B/T 6725-2008 has added the yield strength classification of cold-formed steel products, added fine-grained steel, and increased the specific assessment indicators for the mechanical properties of the product.

Scope of application

The cold-formed section steel is made of ordinary carbon structural steel, high-quality carbon structural steel and low-alloy structural steel plate or steel strip. Cold formed section steel is not only an economic section steel, but also an efficient and energy-saving material. It is a new type of steel with strong vitality. It is widely used in various fields of national economy. Its uses can be divided into highway guardrail plate, steel structure, automobile, container, steel formwork and scaffold, railway vehicles, ships and bridges, steel sheet pile, power transmission tower Other 10 categories.

technological process

In the production of cold-formed hollow square (rectangular) section steel, there are two different production and forming processes. One is to form a circle first and then become a square or rectangle; The other is directly square or rectangular. In the field of square (rectangular) steel pipe forming, the technology of directly forming square and rectangle is the most advanced forming technology in the world. The process of directly forming square or rectangle is more advanced than that of first forming circle and then changing square or rectangle. The process of first forming a circle and then changing into a square or rectangle will cause great damage to the material of steel strip or coil; The process of directly forming square and rectangle will not damage the material in the forming process, which can well maintain the mechanical and physical properties of raw materials and ensure the excellent quality of products
It is also widely used. It is generally used to make structural parts and auxiliary parts in production departments such as construction, railway vehicles, automobiles and ships.

Specifications