ASTM A179 Welded Pipe

QS Pipe: Zhangzhou ASTM A179 Welded Pipe

ASTM A179 welded pipe in 1/2 to 36 inch and 0.5 to 20 m lengths, SCH40 wall with plain ends for exchanger and process runs.

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One-Minute Overview

ASTM A179 welded pipe across 1/2 to 36 inch, lengths from 0.5 to 20 m.
SCH40 wall with plain ends and a black surface for petroleum and heat duty.
Wide size range for exchanger runs, condenser lines and process tie-ins.
Weld seam tested and lengths cut to the range your drawing calls for.

The A179 welded pipe covers ground that most single sizes cannot. Running from 1/2 to 36 inch with lengths from 0.5 to 20 m, it is the flexible member of the carbon steel range: one material identity, one wall family, a size range wide enough to build a whole run from one order. A179 is the specification associated with heat exchanger and condenser tube service, so the underlying steel is a clean, low-carbon chemistry chosen for thermal duty — and in this welded execution it brings that chemistry to petroleum pipelines and process lines where heat transfer and flow both matter.

Name: ASTM A179 Welded Pipe
Type: Welded
Size: 1/2 to 36 Inch
Material: A179
Standard: ASTM
Thickness: SCH40
Length: 0.5 to 20 m
End: Plain
Surface: Black

Buying across a range is where this pipe pays off. Instead of qualifying several materials for one project, the engineering team works one chemistry while the size list follows the drawing: short 0.5 m spool pieces for tight skids up to 20 m lengths for low-joint runs. On the quality side, the weld seam is the inspection focus — non-destructive examination plus hydrostatic testing — and dimensional control matters more than usual, because heat transfer and flow calculations assume the wall and bore they specified. Plain ends keep the joining method open: butt weld, flange or coupling, whichever the service prefers.

Handling follows the same rules as other plain end pipe: caps on until fit-up, bundles supported level, cut pieces marked as the spool builds. Where the pipe faces thermal cycling, keep the layout gentle on expansion and anchor the run so growth goes where the supports allow. Size and wall thickness are confirmed per inquiry, and a detailed specification sheet is available on request.

FAQ

Q1. Why does a heat exchanger standard show up on a pipeline pipe?

A179 brings a low-carbon, clean chemistry that behaves well under thermal duty, and the same behaviour is welcome wherever a line carries warm fluid in petroleum service. The standard gives the steel its identity; the welded construction and the size range decide how it is built into a run.

Q2. How do I pick lengths out of the 0.5 to 20 m range?

Follow the joints. Every field weld is time and inspection, so long lengths suit open runs and short lengths suit skids, modules and tight spaces. Send the spool drawing with the inquiry and the cut list falls out of it, which also keeps the offcuts under control.

Q3. Does SCH40 work for heat transfer duty?

SCH40 gives a robust wall for pressure and handling, and it is a normal choice for process lines. In an exchanger bundle, tube walls are specified by thermal calculation instead. Tell us the duty and we will confirm the wall family with you before the order moves.

Q4. What is the minimum order across this size range?

Standard flange insulation gasket kits start at one set, and standard gaskets, studs, washers and sleeves start at one piece. Kits made to your drawing or for a non-standard bolt pattern are quoted individually, because the minimum really depends on the material and the tooling involved.

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