The five basic performance requirements of steel bars are: yield strength ReL, tensile strength Rm, ratio of tensile strength to yield strength Rm/Re, elongation after fracture A, and total elongation under force Agt. In recent years, many foreign standards have been simplified into three representative key performance requirements: yield strength ReL, ratio of tensile strength to yield strength Rm/Re, and total elongation of force Agt.
The yield strength ReL of steel bars is the main indicator that determines the bearing capacity and structural design of reinforced concrete structures. The strength to yield ratio Rm/Re of steel bars is a parameter used to evaluate the reliability of steel usage. The greater the strength to yield ratio, the greater the reliability and safety of steel when subjected to force exceeding the yield point. For seismic resistant steel bars, the general requirement is 1.25% or more. However, if the strength to yield ratio is too high, the utilization rate of steel strength is low, and materials are wasted. The total elongation under force, Agt, represents the ability of steel bars to withstand plastic deformation without fracture of the structure. Usually, the elongation rate A5 of steel bars after fracture only reflects the residual deformation plastic deformation ability of the local area of the necking fracture of the steel bars, while the total elongation rate Agt under force not only reflects the residual deformation of the gauge distance L0 in the local area of the necking fracture of the steel bars, but also adds the elastic deformation of the recovery. The calculation formula is as follows: Agt=[(L-L0)/L0+Rm0/E] × 100.
The company's steel factory has its own thread brand, Qiancheng Thread Steel, and also operates dedicated thread steel products such as Shagang Yonggang, Hegang Group, Ansteel Group, Laigang Group, etc. We can customize the production of Japanese, Korean, European, and South American standard thread steel products.
Product Description
PPGI & PPGL (prepainted galvanized steel & prepainted galvalume steel) also known as pre-coated steel or color coated steel
coil,It is a product made of hot-dip galvanized steel sheet, hot-dip galvalume steel sheet, electro galvanized steel sheet, etc.
After surface pretreatment, one or several layers of organic coating are applied on the surface, and then baked and solidified.
The color coated steel coil is light in weight, beautiful in appearance, and has good anti-corrosion performance, and can be
directly processed. The color is generally divided into gray, sea blue, brick red, etc. It is mainly used in advertising,
construction,decoration, home appliances, electrical appliances, Furniture industry and transportation industry. The coatings used
for color coated steel coils are based on the environment in which the resin is selected, such as polyester silicon modified
polyester,polyvinyl chloride plastisol, polyvinylidene chloride, and the like.
Detailed Photos
PAYMENT TERMS
We have four kind of payments for your reference:
TT PAYMENT |
20% Deposit After Both Signed The Contract, And The Balance Should Be Paid Against Bl Copy After 7 Days |
100%LC PAYMENT |
100% Lc At Sight |
PART TT, BALANCE LC |
15% Deposit After Both Signed The Contract, and balance open LC within 7 days |
USANCE LC PAYMENT |
After One Year Regular Orders, We Can Accept Usance LC Within 90 Days |
Packaging & Shipping
Company Profile
Our company was established in 2013, Tangshan High-tech Industrial Park Yihang Trading Co., ltd is a specialized exporter of steel products. We are one of the largest private steel exporting companies in China with 50 employees. The annual export is about 150,000 tons.
Our main products are: Prepainted steel coil (PPGI) / (Prepainted galvalume steel coil (PPGL), Galvanized steel coil (GI) / Galvalume steel coil (GL), Steel sheet, Steel Pipe, Seamless pipes, HRC coil, CRC coil , Chequered plate, Steel sheet pile, Channels, H Beams, Angles etc.
Our main markets are: Middle east, Asia, South America and South Africa. Exporting area reach to 60 countries all over the world.
Our main policy is "Contract are honored and credit maintained", sincere & faith cooperation with all customers. We will always be your reliable partner.
OTHER PRODUCTS
Our Advantages
Before sale - service
1. ISO Verified Outstanding Manufacturer
2. Quick Delivery Time,Long time price validity
3. Flexible Payment:T/T,LC at sight
4. The third party inspection: SGS,BV,CICC,ITS,CTl and other
5. Tracking picture of transport: production pictures, before loading and after loading pictures
After Sales Service
1. Quality Guarantee After ReceivingThe Goods
2. Offer money return or ship new products for free if any problems happen
3. Technical guidance for further processing
4. VIP Service and Discount after accumulated order quantity