China Premium Quality Steel Structural China Welded Rectangular and Square Pipe Tube for sale

Premium Quality Steel Structural China Welded Rectangular and Square Pipe Tube

Price Negotiable

Price: Negotiable

MOQ: 10

Delivery Time: Negotiable

Brand: KW

Product Description

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Customized Square Steel Welded Pipes
We use ERW( Electric Resistance Welding ) make different pipes with our CNC machines . Our good quality helps us to get many customers in China and abroad .

ERW( Electric Resistance Welding ) and SAW (Submerged Arc Welding)

	ERW	SAW	SML
Actual weld- throat length	SAW IS 4-5 times than ERW,
Overlap	can be cleared , reduce the temperature rise caused by friction	in long length can't be cleared
Internal stress	small, good for pipes	complex, Not good for Cracking and stress corrosion of inner wall defects
Size	short weld-throat length , thickness is uniform ,geometric dimensions have good precision , good anti-corrosion , easy to install	long weld-throat length, finished pipes have weld-throat and anti-corrosion treatment problems	common geometric dimensions,common precision
pipe material	better pure steel		steel with more C

Specification :

Material	Types	Outer diameter (mm)	Thickness (mm)	Length(mm)	Chrome
GB/T (China)	Square/round	14-90mm	0.7-4.5mm OD<25mm, T<=2mm OD>38mm, T<=4.5mm	customized	customized
JIS(Japan)	Square/round	14-90mm	0.7-4.5mm OD<25mm, T<=2mm OD>38mm, T<=4.5mm	customized	customized
ASTM(USA)	Square/round	14-90mm	0.7-4.5mm OD<25mm, T<=2mm OD>38mm, T<=4.5mm	customized	customized
EN(EU)	Square/round	14-90mm	0.7-4.5mm OD<25mm, T<=2mm OD>38mm, T<=4.5mm	customized	customized
DIN(German)	Square/round	14-90mm	0.7-4.5mm OD<25mm, T<=2mm OD>38mm, T<=4.5mm	customized	customized

We have many material suppliers to provide us many kinds of materials with different requirement , but we recommend you to choose our Chinese standard material better .