Square/Rectangular Steel Pipe

Strict quality control system and perfect after-sales service system are always our top concern which can guarantee and track the quality of our products from raw materials procurement, production processes, finish products as well as after-sales service.

Customization

Test:SGS or Third- party test

Delivery: 5-7days after deposit

More Details

It is a steel pipe made of steel plate or strip after crimping forming and welding. It is generally 6 meters in length. Welded steel pipe production process is simple, high production efficiency, variety of specifications, less investment in equipment, but the general strength is lower than seamless steel pipe.

Technical Parameter

Conventional Parameters

OD

20-500mm

Length

5.8-12m

Thickness

0.5-40 mm

Material

Q235A,Q235C,Q235B,16Mn,20#,Q345,L245,L290,X42,X46,X60,

X80,0Cr13,1Cr17,00Cr19Ni11,1Cr18Ni9,0Cr18Ni11Nb

Tolerance

±0.5%

Processing Service

Welding, Punching, Cutting, Bending, Decoiling

Payment term

T/T (30% Deposit)

MOQ

5Tons

Packing

Standard Sea-worthy Packing

Standard

AISI,ASTM,DIN,JIS,GB ,JIS,SUS,EN,etc

Pipe welding process

Raw material uncoiling -- leveling -- end cutting and welding -- lobbing -- forming -- welding -- internal and external bead removal -- pre-correction -- induction heat treatment -- sizing and straightening -- eddy current testing -- cutting -- water pressure inspection -- pickling -- final inspection (strict control) -- packaging -- shipment.

Characteristic

Simple production process

high production efficiency

low cost

Fast development

Usage

The products are widely used in tap water engineering, petrochemical industry, chemical industry, electric power industry, agricultural irrigation, urban construction, is one of the twenty key products developed in China.

For liquid transportation: water supply, drainage. For gas transportation: gas, steam, liquefied petroleum gas.

For structural use: for piling pipes, Bridges; Pipe for wharf, road, building structure, etc.

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