The company adopts the ASTM A709 high strength steel international advanced management system, and has passed the certification of ISO9001 quality management system, ISO14001 environmental management system and GB / T28001-2001 occupational health and safety ASTM A709 high strength steel management system, and has realized the comprehensive integration of the three systems. In the future development path, the company will adhere to the guidance of scientific development concept, accelerate the implementation of six development strategies, namely, the main business development strategy, cost leading strategy, science and technology innovation strategy, management upgrading strategy, green steel strategy, and Harmonious Co construction strategy, promote the company's sustainable development, and build the company into the most competitive modern steel group.
Structural steel S355JR, S355J0, S355J2G, S355J2G4 are low-alloy high-strength structural steels that comply with the European standard EN10025. S355JR steel in China is a low-alloy high-strength structural steel with a hardness of 70-80B and a yield strength of 300-400MPa. S355J2G3 steel is roughly equivalent to GB Q345D. S355J2G3 means that the delivery state is normalized, and the impact energy at -20°C is 27J. G3 and G4 mean the deoxidation method.
The weight of seamless steel pipe is only 1 / 5 of that of square steel. Seamless steel pipe corrosion resistance acid, alkali, salt and atmospheric environment corrosion, high temperature resistance, good impact and fatigue resistance, do not need regular maintenance. The effective service life of product ASTM A709 high strength steel more than 15 years.
The correct choice of billet type, section shape, size and weight are of great significance to ASTM A709 high strength steel steel rolling production. Steel rolling production has certain technical requirements for raw materials, such as steel type, section shape, size, weight, and surface quality. The consideration of these technical requirements is necessary to ensure the quality of steel. It should also be specifically considered when determining and selecting the blank. The ASTM A709 high strength steel rolling method can be divided into cold rolling and hot rolling according to the rolling temperature.
Mechanical Properties A588 corten steel:ASTM A588 Grade A is a high-strength, low-alloy steel plate utilized primarily in structural applications such as bridges and buildings. We stock this material as A588 Gr A & B in plate and 606 in sheet.Tensile: 70 ksi min (4” and under), 67 ksi min (4”-5”) 63 ksi min (over 5”-8”)Yield:50 ksi min (4” and under), 46 ksi min (4”-5”) 42 ksi min (over 5”-8”)Elongation:16% min in 8” 19% min in 2” (for plates wider than 24”)
We have a professional after-sales service team, the company has developed a clear service process and service standards, after-sales service team members strictly perform after-sales procedures, comply with service standards. The most important thing is that we have set up the correct concept of after-sales service, "customer first, sincere service for users".
