黒い四角鋼管

製品導入：

Black square steel pipe is rolled by steel strip after technological treatment. Generally, steel strip is unpacked, flattened, curled and welded to form a round steel tube, which is then rolled into a square steel tube and then cut to the required length.

仕様：

1)Grade: Q195, Q215, Q235, Q345, SS400, etc.

2）サイズ: 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）パッキング：標準的な耐航性のあるパッキング

6)Service: punching, painting, galvanizing, cutting, welding, etc. 

差：

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.

分類：

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.

応用：

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.

利点：

*完成品の直接供給サービスを提供できます

*私たちは輸入通関のために行動することができます

*We are familiar with the market

*Have a good reputation