According to the different manufacturing processes, there are hot rolled steel pipes and cold drawn seamless steel pipes. BBN sells seamless pipes of different sizes, weights and grades. Customers can choose between black line pipes and galvanized line
According to the different manufacturing processes, there are hot rolled steel pipes and cold drawn seamless steel pipes. BBN sells seamless pipes of different sizes, weights and grades. Customers can choose between black line pipes and galvanized line pipes. From 2-3/8" to 24", steel grade A, B, X42, X80.
What is the difference between Q345B steel and Q345A steel? a573 grade 58 structural steel carbon plate, Q345B steel and Q345A steel have slight difference in chemical composition: Q345A steel: C ≤ 0.20, Mn ≤ 1.7, Si ≤ 0.55, P ≤ 0.045, S ≤ 0.045, V 0.02 ~ 0.15; Q345B steel: C ≤ 0.20, Mn ≤ 1.7, Si ≤ 0.55, P ≤ 0.040, S ≤ 0.040, V 0.02 ~ 0.15. The difference between Q345B steel and Q345A steel is mainly in A and B behind the steel grade, Q345A steel grade is not subject to impact; Q345B steel grade needs 20 ℃ room temperature impact test.
The after-sales service personnel understand the user's ideas and needs in detail, and stand on the other side's position and interests. Actively communicate with users and help them solve practical problems. This not only solves the service problem, but also improves the customer's trust in the company.
Cleveland cliffs, the largest iron ore company in North America, announced on April 13 that its Northshore mine in Minnesota and Tilden mine in Marquette County, Michigan, will suspend production based on the current market environment. The company said it would reduce inventory levels in both regions, while continuing to ship iron ore to its customers to meet commercial agreements.
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