Metinox Overseas is a premier manufacturer, supplier and exporter of pipes and tubes of stainless steel to industries that require accuracy, strength and uncompromising quality. We supply all the types of seamless, welded, ERW and EFW stainless steel pipes, to global ASTM and ASME standards from the ports of Cape Town and Durban to project sites in Johannesburg, Pretoria and Port Elizabeth. Various popular grades like SS 304, 304L, 316, 316L, 321, 904L come in a range of sizes from 1/2" NB to 24" NB and various schedules from SCH 10 to XXS.
Metinox Overseas supports ISO 9001 certification, in house testing and mill test certificate with every consignment, they are technically sound and have quick and reliable export logistics. From custom dimensions to specialized finishes and bulk volumes at the best price, our team makes sure you get the products that are corrosion resistant, dimensionally precise and able to withstand even the toughest environment. Collaborate with us for stainless steel solutions you can trust.
Request a QuoteTable of Contents
- Stainless Steel Pipes Product Overview
- Stainless Steel Pipes Specifications
- Stainless Steel Grades & Equivalents
- Stainless Steel Pipes & Tubes Applications
- Seamless vs Welded Pipes: Quick Comparison
- Manufacturing & Quality Assurance
- Certifications & Standards Compliance
- FAQs - Stainless Steel Pipes & Tubes
- Ready to Source Stainless Steel Pipes & Tubes in South Africa?
Stainless Steel Pipes Product Overview
We supply a comprehensive portfolio of stainless steel piping and tubing for construction, oil & gas, water treatment, food processing, pharmaceuticals, chemical plants and heavy engineering across South Africa and the wider African continent. Each product category is available in multiple grades, forms and finishes.
Stainless Steel Pipes
Stainless Steel Seamless Pipes
Stainless Steel Welded Pipes
Stainless Steel EFW Pipes
Stainless Steel Tubes
Special Alloys Pipes & Tubes
Alloy Steel Pipes
Alloy Steel Tubes
Carbon Steel Pipes & Tubes
ASTM A333 Gr 6 LTCS Pipes
Duplex Steel Pipes
Duplex Steel Tubes
Super Duplex Steel Pipes
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Super Duplex Steel Tubes
Stainless Steel Pipes Specifications
| Parameter | Specification |
|---|---|
| Standards | ASTM / ASME A312, A213, A269, A249 / SA312, SA213, SA269, SA249 |
| Dimensions | ASTM, ASME, API |
| Size | 1/2" NB to 24" NB |
| Schedule | SCH 10, 20, 30, 40, STD, 60, 80, 120, 140, 160, XS, XXS |
| Wall Thickness | Schedule 5S to Schedule XXS |
| Length | Single Random, Double Random & Cut Length |
| Form | Round, Square, Rectangular, Hydraulic, Hollow Section |
| End Finish | Plain End, Beveled End, Threaded |
| Surface Finish | Annealed & Pickled, Polished, Bright Annealed, Mill Finish |
Stainless Steel Grades & Equivalents
| Grade (Standard) | Werkstoff Nr. | UNS |
|---|---|---|
| SS 304 | 1.4301 | S30400 |
| SS 304L | 1.4306 / 1.4307 | S30403 |
| SS 304H | 1.4301 | S30409 |
| SS 310S | 1.4845 | S31008 |
| SS 316 | 1.4401 / 1.4436 | S31600 |
| SS 316L | 1.4404 / 1.4435 | S31603 |
| SS 316Ti | 1.4571 | S31635 |
| SS 321 | 1.4541 | S32100 |
| SS 347 | 1.4550 | S34700 |
| SS 904L | 1.4539 | N08904 |
Stainless Steel Pipes & Tubes Applications
Our stainless steel pipes and tubes are specified across a broad spectrum of industries throughout South Africa and Africa:
| Industry | Typical Application |
|---|---|
| Oil & Gas / Petrochemical | Process piping, refineries, pipelines |
| Water & Wastewater | Treatment plants, desalination, distribution |
| Food & Beverage / Dairy | Sanitary tubing, processing lines |
| Pharmaceutical | Hygienic, high-purity fluid systems |
| Power Generation | Boiler tubes, heat exchangers, superheaters |
| Construction & Architecture | Structural hollow sections, railings, facades |
| Mining & Heavy Engineering | Slurry handling, structural fabrication |
| Chemical & Fertilizer | Corrosive media transport |
Note: Prices are indicative and vary based on grade, size, wall thickness, quantity, finish, and market conditions. Contact Metinox Overseas for the latest quotation and bulk order discounts.
Seamless vs Welded Pipes: Quick Comparison
| Attribute | Seamless Pipe | Welded Pipe |
|---|---|---|
| Manufacturing | Extruded from solid billet, no seam | Formed from plate/coil and welded |
| Pressure rating | Higher — ideal for high pressure | Suitable for low–medium pressure |
| Cost | Higher | More economical |
| Size availability | Up to ~24" NB | Available in larger diameters |
| Best for | Oil & gas, boilers, hydraulics | Structural, water, general service |
Manufacturing & Quality Assurance
Quality is built into every stage of our process. We source high-grade raw material, manufacture on modern machinery and verify each consignment through a multi-point inspection regime before dispatch.
- Raw material verification with PMI and chemical analysis.
- Forming, drawing or welding under controlled parameters.
- Heat treatment, annealing and pickling as required.
- Dimensional, hardness, hydro and macro/micro testing.
- Intergranular corrosion (IGC) and 100% radiography where specified.
- Third-party inspection and issue of Mill Test Certificates.
- Marking, packing and export-ready dispatch.
Certifications & Standards Compliance
- ISO 9001:2015 Quality Management certified
- Products manufactured to ASTM / ASME A312, A213, A269, A249
- EN 10204 3.1 Mill Test Certificates supplied
- Compliant with PED & NACE requirements on request
- Third-party inspection (TPI) supported — Lloyd’s, BV, SGS, TUV
FAQs - Stainless Steel Pipes & Tubes
A: We supply SS 304, 304L, 304H, 310S, 316, 316L, 316Ti, 321, 347 and 904L in pipes and tubes, along with other grades on request.
A: Yes. We stock and manufacture seamless, welded, ERW and EFW pipes and tubes in round, square, rectangular and hydraulic forms.
A: Sizes range from 1/2" NB to 24" NB, with wall thicknesses from Schedule 5S to XXS, in single random, double random and cut lengths.
A: We supply across Cape Town, Johannesburg, Durban, Pretoria, Port Elizabeth, Bloemfontein and other regions, with export to ports throughout Africa.
A: Yes — every consignment ships with EN 10204 3.1 Mill Test Certificates and full material traceability. Third-party inspection is available on request.
Ready to Source Stainless Steel Pipes & Tubes in South Africa?
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