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Home > Metallurgy, Mineral & Energy > Steel & Products > Steel Pipe & Tube > Hot Dipped Galvanized Pipe-cs Straight Welded Steel Pipe/welded Steel Pipe

Hot Dipped Galvanized Pipe-cs Straight Welded Steel Pipe/welded Steel Pipe

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Hot Dipped Galvanized Pipe-cs Straight Welded Steel Pipe/welded Steel Pipe photo-6

US$ 399 - 519 MOQ: 1 Ton

Key Specifications

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Standard:

Grade:

Thickness:

2.0, 5.0

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Tangshan Huaye Steel Pipe Manufacturing Co., Ltd.

Payment & Shipping

Payment Methods:

Port of Shipment:

XINGANG

Delivery Detail:

Delivery time depends on order quantity.

Product Details
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Thickness 2.0, 5.0

Section Shape Round

Outer Diameter 20 - 165 mm

Place of Origin Hebei, China

Secondary Or Not Non-secondary

Application Structure Pipe

Technique ERW

Certification Other, GB

Surface Treatment Galvanized

Special Pipe API Pipe

Alloy Or Not Non-alloy

Product Description

ERW GALVANIZED STEEL PIPE

Steel Pipes manufacters and Exports huge range of ERW Galvanized Steel Tubes & Steel Pipes. For pipes or tubes size 4 inch (10.2mm) OD and below, strip is fed into a set of forming rolls which consists of horizontal and vertical rollers so placed as to gradually from the flat strip in to a tube which is then allowed to pass the welding electrodes. The electrodes are copper disks connected to the secondary of a revolving transformer assembly. The copper disk electrodes make contact on each side of the seam and temperature is raised to the welding point. Outside flash is removed by a cutting tool as the tube leaves the electrodes, inside flash is removed either by an air hammer or by passing a mandnel through the welded tube after the tube has been cooled. This is termed as Electric Resistance Welded or ERW tube/pipe.

ERW pipes are used in Water Pipelines, Agriculture and Irrigation (Water Mains, Sewerage Systems, Industrial Water Lines, Plant Piping, Deep Tube-Wells & Casing Pipes). Other popular application area includes usage in gas pipe lines (pipe lines for natural gas, LPG and other non-toxic gases). The SW is meant for shallow water applications This could be in a canal, natural stream, culvert, or pipe.

Technical details

This specification is mainly for scaffolding pipes in which there are two types 3 and types4.

The size is 48.30mm

Technical details are as below

TYPE	SPECIFICATION O.D.(mm)	O.D.(Max)mm	O.D.(Max)mm	THICKNESS(mm)		MASS(Kg/Mtr)
TYPE	SPECIFICATION O.D.(mm)	O.D.(Max)mm	O.D.(Max)mm	Specified	Min	Specified	Min
Type-3	48.3	47.8	48.8	3.2	2.88	3.56	3.29
Type-4	48.3	47.8	48.8	4.0	3.6	4.37	4.04

Tolerance on roundness is 0.5mm

Straightness:0.002 times length.

Flattening test: Flatten the piece keeping the weld at 0°& 90°till 75% of O.D. with any cracks on the weld.

And further flatten up to 60% ensure that no cracks in the metal other than weld.

A mandrel of 33.70mm to go freely on both sides for a minimum length of 200mm.

MECHNICAL PROPERTIES			CHEMICAL COMPOSITION(max)%
Yield Strength(Yst)	Tensile Strength(Uts)	Elongation%	C	Mn	P	S	Al(min)	Si
235Mpa min	340-520 Mpa	24min	0.2	1.4	0.040	0.045	0.020	0.05Max

The pipes can be manufactured as per clients requirement with reference to mechnical properties.

Zinc Coating: As per EN: 10240 B2,GB/T3091 coating quality ar as per EN: 1461.

Size

Product Name:	Scaffolding Tube/Galvanized steel tube/ERW Welded Pipe
Size	Outer diameter: 48.3mm
	Wall Thickness: 2.3mm,2.4mm,2.5mm,2.75mm,3.0mm,3.25mm,3.5mm,3.75mm
	Zinc Coating: hot dipped galvanized:Z60-120g/m2
Steel Material	Q195 Q215 Q235 Q345B ST37.2,S235JR,S275J,S355JR
Standard	BS 1139,EN39,GB/T13793,ASTM A500,JIS G3444, BS6323,IS 1161,NF A49, KS D3566 Scaffolding Pipe And Scaffolding Tubes For General Structural Purposes
Technical	HFW/HFI(High frenquency induction welding) Electronic Resistance Welded (ERW )
Length	1.52m,2.50m,3.00m,4.90m,5.0m,5.2m,6m,6.4m,6.5m,7m,7.5m(customizable)
End	Square cut, Burr removed
Surface Treatment	Varnish Coating, Bitumen Coating (Color red/blue/orange/yellow mainly) Hot dip galvanized, Lightly oil coating,Black
Inspection	Chemical Component Analysis, Mechanical Properties (Ultimate tensile strength, Yield strength, Elongation), Technical Properties (Flattening Test, Bending Test),Exterior Size Inspection.
Package	Hexagonal bundling approximately 1 ton
Addition:	Special design available according to requirment .Anti-corrosion and high-temperature resistant with black painting .All the production process are made under the ISO9001:2000 strictly Weight per Piece=(OD-Thickness)ThicknessLength*0.0246615