Factory Price Round Hollow Section Steel - ASTM A53 Square Tubing for structural applications – Zheyi

ASTM A53 Square pipe USES a construction, machinery manufacturing, steel construction projects, shipbuilding, solar power stents, steel structure engineering, electric power engineering pipe products, power plants, agricultural and chemical machinery, glass curtain wall, automobile chassis, airport, boiler building, highway railings, housing construction, pressure vessel, oil storage tanks, Bridges, power station equipment, Lifting and transportation machinery and other high load welding structures.

Classification Of ASTM A53 Square Pipe Production Process

ASTM A53 Square pipe according to the production process: hot rolled seamless square tube, cold drawn seamless square tube, squeeze seamless square tube, welded square tube.

Welding square tubes are divided into:

(a) arc welding square tubes, resistance welding square tubes (high frequency, low frequency), Gas welding square pipe, furnace welding square pipe

(b) According to the weld, it is divided into one – straight seam welded square pipe and spiral welded square pipe

Material Classification Of Astm A53 Square Pipe

Square tube according to the material: plain carbon steel square tube, low alloy square tube. Carbon steel is divided into: Q195, Q215, Q235, SS400, 20# steel, 45# steel; Low alloy steel is divided into Q345, 16Mn, Q390, ST52-3, etc.

Standard Classification Of Astm A53 Square Pipe Production

Square tube according to production standards: gb square tube, Japanese standard square tube, British system square tube, American standard square tube, European standard square tube, non the square tube.

Shape Classification Of Square Tube Section

Square pipes are classified according to section shape:

(1) simple section square pipe – - square square pipe, rectangular square pipe

(2) complex section square tube – flower shaped square tube, open square tube, corrugated square tube, shaped square tube

Specification

Steel Grade: A53 Gr. A, Gr B, A106 GR.A GR.B A333 GR1 GR3 GR6 S355JR S355JO 355J2

Outer Diameter: 20X20-600X600

Wall Thickness: 1mm-40mm

Length: Random Length, SRL, DRL(4-14M)

End:pland ends

Packing:Light oiled,bundles

Chemical Composition

FAQ

1.What kind of work does your company do? 
Our company is a professional manufacturer.
We mainly produces  steel sheet/pipe/coil/lead round bars,as well as galvanized plate/pipe/coil/lead wire/corrugated sheet,etc.

2.Do you provide free samples?
Yes, we can provide free sample for testing,buyer should bear all the shipping costs.

3.How long is your delivery time?
Generally it is 3-7 days if the goods are in stock or it is 7-15 days if the goods are not in stock, it is according to quantity.

4.How can we guarantee quality?
Always a pre-production sample before mass production;always final Inspection before shipment.And we can also accept the third-party inspection and quarantine.

5.Why should you buy from us not from other suppliers?
Diversified products, direct supply from manufacturer.

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