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Black Square Steel Pipe

Place of Origin:China
Brand Name:ZHANZHI
Model Number:ZZ SP-1


Product Introduction:

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. 


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

Brand Name:ZHANZHI
Model Number:ZZ SP-1
Minimum Order Quantity:10 Tons
Packaging Details:Standard seaworthy package or as per customer's request
Delivery Time:15~35days after receipt of L/C or deposit
Payment Terms:T/T, L/C
Supply Ability:10,000 Tons

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