Galvanized Welded Rectangle Steel Pipe
Zinc coated welded rectangular section in lengths from 0.3 to 18 M
Specifications
Welded Steel Pipe ERW LSAW and Spiral
The welded branch of the steel tube range covering ERW LSAW and spiral pipe in round square and rectangle sections
Welded steel pipe is the seamed half of the steel tube range, formed from strip or plate with the joint closed by electric resistance or submerged arc welding. This category covers ERW welded steel pipe including line pipe and casing pipe, LSAW longitudinal submerged arc welded pipe, spiral submerged arc welded pipe, and welded square and rectangle sections in both plain and galvanized finish. Grades run across ASTM A53 GR A GR B and GR C, EN S275 S275JR S355JRH and S355J2H, GB Q195 Q215 Q235 and Q345 and the L175 to L555 line pipe series, worked to standards including ASTM A53, EN10217, DIN 2458, IS 3589, JIS G3452, BS1387, GB/T3091 and GB/T9711. It is built for buyers whose project bill of material mixes conveyed water line, structural hollow section and galvanized frame tube and who do not want three mills and three inspection files for one site.
Full Range
All 12 Products in Welded Pipe
The welded branch of the steel tube range covering ERW LSAW and spiral pipe in round square and rectangle sections Items here also sit under Galvanized Steel Pipe, Square/Rectangle Steel Pipe.
Galvanized Welded Square Steel Pipe
Four equal faces and a zinc coating for frames posts and site structures
Specifications
Welded Square Pipe
Welded square and rectangular tube in painted galvanized natural or 3PE coated finish
Specifications
Welded Rectangle Pipe
Square and rectangular welded hollow section finished black galvanized or coated to order
Specifications
LSAW Welded Steel Pipe Line Pipe
Large diameter submerged arc welded line pipe in L245 to L555 with pipeline coating
Specifications
LSAW Welded Steel Pipe
Plate formed submerged arc welded pipe with a single straight seam for large bore duty
Specifications
Galvanized Welded Round Steel Pipe
Zinc coated welded round pipe from 21.3mm to 660.4mm outside diameter
Specifications
ERW Welded Steel Pipe Line Pipe
Electric resistance welded line pipe coated and tested for low pressure fluid transmission
Specifications
ERW Welded Steel Pipe Casing Pipe
Electric resistance welded casing pipe with coating options and full body testing
Specifications
ERW Welded Steel Pipe
Electric resistance welded pipe from one strip source with a full mechanical test record
Specifications
Spiral Submerged-Arc Welded Steel Pipe
Spiral submerged arc welded pipe for large bore water lines piling and construction
SpecificationsSpiral Welded Steel Pipe
Spiral submerged arc welded pipe for water gas oil and piling duty in large diameters
SpecificationsProblems Solved
What This Range Is For
Line Pipe and Structural Tube Split Across Mills
A water or gas line, a structural frame and a galvanized fence run rarely come from one source, so the buyer manages three approvals and three shipments for a single project.
The Welding Route Chosen on Price Alone
ERW, LSAW and spiral welding each serve different diameter and wall combinations. Picking a route before checking the drawn size can leave a pipe that cannot be made in the section you specified.
Coating Ordered as a Second Contract
Sending black pipe out for coating adds a handling stage and a second delivery date. Galvanized welded round, square and rectangle pipe is quoted here as the finished item.
Standards Mismatch Found on Site
A pipe bought to one standard and inspected against another causes rejection at delivery. Naming ASTM A53, EN10217, DIN 2458, IS 3589, JIS G3452, BS1387, GB/T3091 or GB/T9711 at order stage sets the test and marking in advance.
Fixed Lengths That Do Not Suit the Run
Cutting standard lengths down on site wastes pipe and labor. Length is available across the 0.3 to 18 M range as well as at fixed 5.8m and 6m so the pipe arrives closer to the installed length.
Who Buys It
Buyers Who Order From This Range
- Water gas and oil pipeline contractors buying line pipe to GB/T9711 or ASTM A53
- Structural steel fabricators specifying welded square and rectangle hollow sections by section size and wall
- Greenhouse solar mounting and fencing manufacturers buying galvanized welded round tube in volume
- Drilling and water well contractors ordering ERW welded steel pipe casing pipe
- Municipal and irrigation contractors taking spiral submerged arc welded pipe in the larger diameters
- Trading companies consolidating a mixed pipe bill of material into one container load
Core Advantages
Why Source This Range From Tianyu Metal
Three Welding Routes Under One Category
ERW, LSAW and spiral submerged arc welded pipe are quoted together, so the route follows the diameter and wall you need rather than the one process a single mill happens to run.
Diameter and Wall Stated as a Working Range
The galvanized welded range covers 21.3mm to 660.4mm outside diameter, which is 1 half inch to 26 inch, with wall thickness from 1.5mm to 22.2mm.
Plain or Galvanized Without a Second Supplier
Galvanized welded round, square and rectangle pipe sits beside the black equivalents so an outdoor frame and an indoor frame come off the same order.
Round Square and Rectangle in One Order
Circular line pipe and hollow structural sections are held in the same category, which keeps one set of documents for a project that uses both.
Grades Across Several Standard Families
ASTM A53 and A36, EN and BS grades such as S235JR S275JR and S355J2H, GB Q195 to Q345 and JIS SS330 to SS490 let you match a drawing written in any of them.
Schedule or Millimeter Ordering
Wall can be called out by schedule from SCH5S through SCH160 including STD and XS, which spans 1.65mm to 80mm, or simply in millimeters.
Application Scenarios
Where This Range Ends Up
Low Pressure Water Gas and Oil Delivery
LSAW welded pipe is widely used for low pressure liquid delivery such as water, gas and oil, which covers distribution mains and plant transfer lines.
Steel Structure Frames and Columns
Welded square and rectangle pipe used as columns, trusses and portal frame members where a hollow section is lighter than an equivalent open profile.
Greenhouse and Solar Mounting Frames
Galvanized welded round and square pipe for greenhouse arches, ground screws and racking legs that stay outdoors for the life of the structure.
Well Casing and Conductor Strings
ERW welded steel pipe casing pipe for water wells and shallow bores where a consistent wall and straight run matter more than exotic alloying.
Municipal and Irrigation Pipelines
Spiral submerged arc welded pipe in the larger diameters for gravity mains, irrigation headers and site dewatering runs.
Fencing Handrail and General Fabrication
Small diameter welded and galvanized tube cut to fixed 5.8m or 6m lengths for railings, gates, scaffolding and workshop fabrication.
Buying Guide
What To State When You Order
Name the standard first, ASTM A53, EN10217, DIN 2458, IS 3589, JIS G3452, BS1387, GB/T3091 or GB/T9711, because it sets the testing and the marking
Give the grade in the same family as the standard, for example ASTM A53 GR A or GR B, EN S275JR or S355J2H, GB Q195 to Q345, or an L175 to L555 line pipe grade
Specify outside diameter and wall in millimeters, or the schedule such as SCH40 STD or XS if your drawing is written that way
For hollow sections give the square or rectangle section size and wall rather than an outside diameter
State plain or galvanized, and say how the ends are finished, plain cut, beveled or threaded
Confirm length, either within the 0.3 to 18 M range or fixed at 5.8m or 6m, and the bundling and end protection you need for sea freight
Related
Industries and Solutions Around Welded Pipe
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Construction Machinery and Agriculture
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Cut to Size and Processing
Buying full plates to make small panels means paying freight on offcuts and storing them afterwards. Tianyu Metal processes steel
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Welded Pipe FAQ
What separates ERW LSAW and spiral welded pipe?
ERW closes the longitudinal seam by electric resistance welding. LSAW is longitudinal submerged arc welded pipe formed from plate. Spiral pipe is submerged arc welded along a helical seam, which is how the larger diameters are reached from narrower strip.
What diameter and wall thickness can you cover?
The galvanized welded round, square and rectangle range runs from 21.3mm to 660.4mm outside diameter, that is 1 half inch to 26 inch, with wall from 1.5mm to 22.2mm. Welded square and rectangle pipe is listed from 1 half inch to 48 inch or customized.
Which standards do you work to on welded pipe?
Orders are placed against ASTM A53, EN10217, DIN 2458, IS 3589, JIS G3452, BS1387, GB/T3091 and GB/T9711. Give the standard on the enquiry so the grade and the test regime are set from the start.
Do you supply galvanized as well as black pipe?
Yes. Galvanized welded round pipe, galvanized welded square pipe and galvanized welded rectangle pipe are held alongside the plain welded equivalents.
Can we order fixed length rather than random length?
Length is available across the 0.3 to 18 M range and at fixed 5.8m and 6m. Fixed length suits repetitive fabrication because it removes an offcut at every joint.
Is welded pipe acceptable for water gas and oil service?
LSAW welded pipe is widely used for low pressure liquid delivery such as water, gas and oil, and line pipe grades from L175 through to L555 are available for those duties.
Get a Quotation on Welded Pipe
Tell us name the standard first, ASTM A53, EN10217, DIN 2458, IS 3589, JIS G3452, BS1387, GB/T3091 or GB/T9711, because it sets the testing and the marking and we will come back with price, availability and what the mill test certificate will show for welded pipe.