Which mill is good choice for purchasing SA573 Grade 70 carbon steel structural tubing in China

Based on the principle of quality and respect for customers, BBNsteel maintains good cooperative relations with customers in home and abroad. With modern management, high-quality products, reasonable prices and comprehensive after-sales service, we provide our customers with high quality and low price SA573 Grade 70 carbon steel structural tubing products.

The yield strength of SA573 Grade 70 carbon steel structural tubing A32, D32, E32, F32 is not less than 315N/mm^2, and the tensile strength is 440~570N/mm^2. The grades A, D, E and F indicate that they can be 0 and -20 respectively. The impact toughness can reach -40℃, -60℃.

Q345D seamless pipe has good comprehensive mechanical properties, low temperature impact toughness, cold stamping and cutting processability, weldability. In Q345D seamless pipe, Q is the abbreviation of yield strength, 345 is the yield strength value, that is, the yield strength of Q345D seamless pipe is 345 MPa, and D is the impact temperature, which is minus 20℃. SA573 Grade 70 carbon steel structural tubing, Q345D seamless pipe is widely used in various welding structures, such as bridges, vehicles, ships, pipelines, boilers, large vessels, storage tanks, heavy machinery and equipment, mining machinery, power stations, plant structures, low-temperature pressure vessels, textile machinery parts, etc.

When phosphorus, copper, chromium, nickel and other trace elements are added to the weathering steel sheet, a dense and strong adhesion protective film will be formed on the steel surface, which will hinder the corrosion from spreading and developing inside, and protect the substrate under the rust layer, so as to slow down the corrosion rate. That is why the weathering steel sheet, SA573 Grade 70 carbon steel structural tubing has good atmosphere corrosion resistance.

S550MC hot-rolled automobile sheet chemical composition (melting analysis)%
C: ≤0.12, Si: ≤0.50, Mn: ≤1.80, P: ≤0.025, S: ≤0.015, Alt: ≥0.015, Nb: ≤0.09, V: ≤0.20, Ti: ≤0.15
Mechanical properties
Yield strength MPa: ≥550
Tensile strength MPa: 600–760
Elongation: ≥12

The company has sufficient stocks and complete specifications. The common carbon steel plates, marine plates, SA573 Grade 70 carbon steel structural tubing and storage tank steel plates sold are all produced by large state-owned steel companies such as Shougang, Hegang, Taiyuan Iron and Steel, with quality assurance and worry-free after-sales. The company develops and grows under the concept of seeking innovation in stability and advancing with the times for development. After a short period of development, it has begun to take shape.

We have a professional after-sales department to collect all information related to customers, so as to make relevant treatment in time according to the information, and file it; guide the user's product use methods and precautions; coordinate with the sales department, visit customers regularly, understand the customer's use and new requirements, and make a customer visit record; When communicating with customers, they should be enthusiastic and careful to understand the situation of product problems and put forward solutions