ASTM A249 Welded Stainless Steel Coiled Tubing
JW Industrial Solutions supplies welded stainless steel coiled tubing manufactured with laser beam or TIG/argon-arc welding, bright annealing, and online cold drawing. The process provides a cost-effective continuous tubing option for heat exchangers, process equipment, OEM systems, and other industrial applications. This welded coiled tubing product is also commonly described in RFQs as stainless steel coiled tube.
Available Welded Coil Specifications
- Grades: TP201, TP304/304L, TP316/316L, and other specified grades
- Standard: ASTM A249
- Outside diameter: 1/8 inch to 2 inches
- Wall thickness: 0.020 inch to 0.083 inch
- Maximum length: 3,000 m
- Processes: laser beam welding, TIG/argon-arc welding, bright annealing, and online cold drawing
Dimensions, tolerances, surface condition, coil configuration, inspection, and order documentation are confirmed against the customer specification.
Weld Conditioning and Cold Drawing
Online cold drawing improves weld-seam uniformity and brings the mechanical performance and surface condition closer to seamless tubing. This route supports controlled dimensions and continuous lengths while maintaining the production economics of welded tubing.
Welded Stainless Steel Tube Production Line
61.3 seconds · Silent video – no audio
This footage illustrates the production line; the welding process and finishing requirements for your tubing are confirmed in the order.
Inspection and Pressure Testing
Available quality controls include online weld-line monitoring, online eddy-current testing, and 100% air-pressure testing. Material verification and customer-specified documentation or inspection requirements can be incorporated when agreed during quotation.
Explore two separate inspection demonstrations below. These clips illustrate different checks and do not document a single production batch.
In-Line Eddy-Current Testing (ET) of Welded Tubing
14.0 seconds · Silent video – no audio
The inspection method, reference settings and acceptance criteria follow the agreed specification. This demonstration is not a batch inspection report or a statement of defect-detection sensitivity.
Air-Pressure Testing of Stainless Steel Coiled Tubing
21.0 seconds · Silent video – no audio
Test pressure, hold time and acceptance criteria are defined for the order. The clip shows the test setup, not a certified test result.
For more process examples, see tube production and dimensional inspection videos. Email your enquiry and design drawings; a specialist will help coordinate the inspection and documentation requirements.
Typical Applications
Welded coiled tubing is used in heat exchangers, food and beverage equipment, HVAC equipment, water heaters, automotive and marine systems, process equipment, and custom OEM assemblies.
Frequently Asked Questions
Which welding processes are available?
Available manufacturing routes include laser beam welding and TIG/argon-arc welding, followed by bright annealing and online cold drawing as specified.
How is the weld area inspected?
The published process includes online weld-line monitoring, online eddy-current inspection, and 100% air-pressure testing.
How do I start an enquiry?
Enquiries are welcome in any format. Please send your design drawings for custom tube components; drawings are required for quotation and production. You do not need to repeat information already shown on the drawing. Operating conditions, such as the service environment and frequency of use, are helpful if available. Email info@jwindustrialsolutions.com, and a specialist will follow up with you.
Compare our ASTM A269 seamless coiled tubing, see the complete precision tubing range, or request a welded tubing quote.
ASTM A249 Heat Exchanger Tube Requirements
Buyers with heat-exchanger, condenser, finished-length, or U-tube requirements should review the dedicated stainless steel heat exchanger tubing page for the engineering review of the applicable ASTM revision and supplementary requirements against the design drawing.
Quotations include products and accessories (including hydraulic-cylinder seals), all certificate costs and transportation to the quoted destination. Standard custom-product payment: 30% advance, 70% before shipment. Quotes are available in your requested currency and format. See our quotation and payment terms.