Square rectangular tubes of various standard materials

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Min Order Qty:
20 m.t.
Supply Capability:
15000 m.t./month

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Item specifice:

Standard: EN,DIN,BS,GB,JIS,ASTM,AISI Technique: Extruded,ERW,Cold Drawn,Cold Rolled,Hot Rolled,EFW Shape: Square,Rectangular
Surface Treatment: Galvanized,PVDF Coated,Bright,Polished,Dry,Oiled,Color Coated,Copper Coated,Coated,Black Steel Grade: SS400-SS490,10#,20#,A53(A,B),600 Series,200 Series,Q235B,Q215B,Q235,Q215,Q195 Certification: ISO,SGS,BV,IBR,RoHS,CE,UL
Thickness: 0-33mm Width: 0-400mm Length: 0-600mm
Net Weight: 0-3

Product Description:

1 Square rectangular tubes of various standard materials

Square tube, square tube is a kind of call and rectangular tube, is equal and not equal to the length of steel pipe. Is the strip through the process of processing roll system. In general is the strip through the demolition of the package, flat, curly, welded to form a circular tube, and then rolled into a square tube and then cut into a square tube and then cut into the required length.


2 Square rectangular tubes of various standard materials

• High manufacturing accuracy

• High strength

• Small inertia resistance

• Strong heat dissipation ability

• Good visual effect

• Reasonable price 


3 Square rectangular tubes of various standard materials




10#-45#, 16Mn

10#, 20#, 45#, 16Mn


1.5 - 25 mm

Section Shape

Square  and rectangular

Outer Diameter

20*20 mm-------400*400mm   20*30mm*300*500mm

Place of Origin

Tianjin, China (Mainland)



Outer Diameter

20*20 mm-------400*400mm   20*30mm*300*500mm


235B   345B 




1) Material:(ASTM A 106/A53 GRB.API5LGRB,GB,235B,345B

2) Specification range:OD: 20*30mm----300*500mm 20*20 mm---400*400mm    ,WT: 1.5 - 25 mm   ,length:3-12m or according to the requirement of clients.

3) Excutive standards:GB,ASME API5L.ASTM A 106/A53,Despite of the above
4) Surface:black lacquered,varnish coating or galvanized.
5) Ends:Beveled or square cut ,painted.
6) Packing:bundles wrapped with strong steel strip,seaworthy packing. 



4Packaging & Delivery

Packaging Details:

seaworthy package,bundles wrapped with strong steel strip

Delivery Detail:

15-30days after received 30%TT


5 Square rectangular tubes of various standard materials 

How is the quality of your products?
    Our products are manufactured strictly according to national and internaional standard, and we take a test 
on every pipe before delivered out. If you want see our quality certifications and all kinds of testing report, please just ask us for it.
Guaranteed: If products’ quality don’t accord to discription as we give or the promise before you place order, we promise 100% refund.

How about price?
    Yes, we are factory and be able to give you lowest price below market one, and we have a policy that “ for saving time and absolutely honest business attitude, we quote as lowest as possible for any customer, and discount can be given according to quantity”,if you like bargain and factory price is not low enough as you think, just don’t waste your time.Please trust the quotation we would give you, it is professional one.

Why should you chose us?
    Chose happens because of quality, then price, We can give you both.Additionally, we can also offer professional products inquiry, products knowledge train(for agents), smooth goods delivery, exellent customer solution proposals.Our service formula: good quality+good price+good service=customer’s trust
SGS test is available, customer inspection before shipping is welcome, third party inspection is no problem.


6 Square rectangular tubes of various standard materials


Square rectangular tubes of various standard materials

Square rectangular tubes of various standard materials



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