• If you have any questions, please contact us - Sky Steel  ❥(^_-)

Specifications

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.

(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.

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Difference

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.

Main Classification

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

 Application

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.

Advantage

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

Stable delivery time

If products is in stock , we can delivery after received deposit about 7-15days.

If you need customization service,  100tons goods need 20-25days , 100-300 tons goods need 40-50days ,exceed 300 tons goods need 60 days.

Product packaging material selection is for protect products better.