Our mission is to become an innovative supplier of high-tech digital and communication devices by providing value added design, world-class manufacturing, and service capabilities for Best-Selling Black Welded Steel Pipe Class B Schedule 40 A53 Annealed Steel Piping, We honor our core principal of Honesty in company, priority in company and will do our best to offer our buyers with top quality merchandise and outstanding support.
Our mission is to become an innovative supplier of high-tech digital and communication devices by providing value added design, world-class manufacturing, and service capabilities for black steel pipe class b, black steel pipe schedule 40 a53, Our factory insists on the principle of “Quality First, Sustainable Development”, and takes “Honest Business, Mutual Benefits” as our developable goal. All members sincerely thanks for all old and new customers’ support. We will keep working hard and offering you the highest-quality solutions and service.Thanks.

1)Grade: Q195, Q215, Q235, Q345, SS400, etc.
2)Size: 10 * 10 – 500 * 500mm, as per customer’s requirement
3)Surface treatment: black
4)Length: 2m-5.8m, 6m, 12m ( We can adjust length according to your request)
5)Packing: standard sea-worthy packing
6)Service: punching, painting, galvanizing, cutting, welding, etc.

Difference Between Black Steel Pipe And Hot-Dipped Galvanized Steel Pipe
The black square steel pipe is the base metal square pipe before galvanizing. Hot dip galvanized square steel pipe is to unpack, flatten, curl and weld hot rolled steel strip into round steel pipe, and then roll the round steel pipe into a processed black square steel pipe. The black square steel pipe will be taken to the hot dip galvanizing plant for high temperature galvanizing at 1000 degrees, and the hot dip galvanized square steel pipe can only be processed if its wall thickness is above 2mm.

Square steel pipe are divided into structural square steel pipes, decorative square steel pipes, building square steel pipes and mechanical square steel pipes according to its usage. According to the wall thickness, it can be classified as super thick square steel tube, thick square steel tube and thin square steel tube.

Black steel pipe is widely used in furniture making, machinery manufacturing, construction industry, metallurgical industry, agricultural vehicles, agricultural greenhouses, automobile industry, railway, container skeleton, furniture, decoration and steel structure fields.

*We can provide direct supply services for finished products
*We can act for import customs clearance
*We are familiar with the market
*Have a good reputation

Our mission is to become an innovative supplier of high-tech digital and communication devices by providing value added design, world-class manufacturing, and service capabilities for Best-Selling Black Welded Steel Pipe Class B Schedule 40 A53 Annealed Steel Piping, We honor our core principal of Honesty in company, priority in company and will do our best to offer our buyers with top quality merchandise and outstanding support.
Best-Selling China black steel pipe class b, black steel pipe schedule 40 a53, Our factory insists on the principle of “Quality First, Sustainable Development”, and takes “Honest Business, Mutual Benefits” as our developable goal. All members sincerely thanks for all old and new customers’ support. We will keep working hard and offering you the highest-quality solutions and service.Thanks.