High-Strength Welded Stainless Steel Tubing: Precision Weld Seams & Bright Annealing
Controlled weld seam options, protective bright annealing, and flexible FOB or DDP door delivery from our Foshan partner factory.
For welded tube used in process, sanitary, or marine systems, see how to verify TeCarve's welding, inspection, and order-traceability process, including optional third-party witnessing.
Welded Pipe Packaging & Inspection Photos
Real product, inspection, packaging and loading photos.



How your order is made, checked and shipped
Tube forming at the partner factory
Heat treatment (annealing)
Dimensional inspection
Alloy verification with a handheld analyzer
Export packing
Container loading
What Global Buyers Say About TeCarve Tubing
“I've received the goods and everything is fine.”
“The goods already send to customers. I am waiting for the next order from them.”
“…there is no need of inspection this time… I trust in your product.”
Frequently Asked Questions
How is stainless steel welded pipe manufactured?
Stainless steel welded pipe is formed by rolling flat strip into a tube and joining the seam by TIG (GTAW) or laser welding, followed by annealing and bright-annealing for a clean, uniform finish. TeCarve sources from partner factories using automated TIG welding for consistent seam integrity across all production runs.
What grades are available for welded stainless steel pipe?
We supply welded stainless steel pipe in grades 201, 202, 304, 304L, 316, 316L, 409, 410, 430, and duplex stainless steel, conforming to ASTM A249, ASTM A269, ASTM A270, ASTM A312, ASTM A554, ASTM A778, EN 10217, EN 10296, EN 10312, DIN 17455, and DIN 11850.
What surface finishes are available for welded stainless steel pipe?
Available finishes: 2B (mill), No. 4 (brushed/satin), No. 8 (mirror), BA (bright annealed), and Ra ≤ 0.8 µm polished for sanitary service. Internal polishing to Ra ≤ 0.4 µm is available for pharmaceutical-grade tube.
What are typical applications for welded stainless steel pipe?
Welded stainless steel pipe is ideal for food processing, dairy, pharmaceutical, water treatment, HVAC, decorative and architectural piping, and low-to-medium-pressure industrial systems where cost efficiency is important.
Can I order custom lengths and wall thicknesses for welded pipe?
Yes. Custom lengths up to 12 m, non-standard wall thicknesses, and end treatments (beveled, plain, threaded, flanged) are available. Flexible trial orders starting from 100–300 kg are supported for standard and custom specifications; contact TeCarve sales for a quote.
Can TeCarve supply both FOB and DDP prices for welded pipes?
Yes. We offer FOB, CIF, CFR, and DDP (Delivered Duty Paid) commercial terms. DDP quotes include ocean freight, customs clearance, and inland trucking, providing transparent landed cost.
Are welded tubes available with bright annealing and weld bead control?
Yes. We supply as-welded, welded and annealed (bright annealed in protective atmosphere), and cold-reduced conditions per customer ordering requirements and standard specifications.
What standards govern TeCarve's welded stainless steel pipes?
We supply welded stainless steel piping and tubing conforming to ASTM A312 (industrial fluid systems) and ASTM A554 (mechanical and structural applications). Every order includes an authentic EN 10204 3.1 Material Test Certificate.

