Metinox Overseas is a reliable pipe & tube supplier and manufacturer to the oil & gas, petrochemical, construction, and desalination sectors in Kuwait. Knowing how to manufacture seamless, welded, and ERW pipes and tubes within the carbon steel, stainless steel pipe & tube, alloy steel pipe & tube, and duplex grades, we offer seamless, welded, and ERW pipes & tubes to ASTM, ASME, API 5L, DIN, and JIS international standards.
All batches are subjected to a rigorous raw-material verification process, dimensional inspection, and non-destructive testing before leaving our factory, ensuring that the pipes and tubes supplied to the Kuwaiti contractors, EPC companies and trading houses will withstand pressure, heat and corrosive environments.
From the large-diameter line pipe for a pipeline operation to the precision stainless tubing for a food-processing plant to the duplex steel pipe for a coastal desalination unit, our technical experts can match the grade, schedule, and size to your specification—offering competitive prices, on-time delivery to Kuwait ports, and documentation that meets international quality audits. Request a quote today and experience the difference that builders in the GCC have been looking for in builders for over 30 years.
Request a QuoteTable of Contents
- What We Manufacture & Supply
- Pipes & Tubes Specifications
- Pipes and Tubes Dimensions & Wall Thickness Chart
- Where Our Pipes & Tubes Are Used
- Pipes vs. Tubes — What's the Real Difference?
- How Our Pipes & Tubes Are Made
- Standards & Certifications We Comply With
- FAQs — Pipes & Tubes in Kuwait
- Get a Quote for Pipes & Tubes in Kuwait Today
What We Manufacture & Supply
Metinox Overseas designs, manufactures, and exports a complete range of pipes and tubes for industrial, structural, and process piping applications. Our product portfolio is built around the materials and forms most demanded across Kuwait’s EPC, oil and gas, and water-infrastructure projects.
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
Pipes & Tubes Specifications
| Specification | Details |
|---|---|
| Standards | ASTM, ASME, API 5L, DIN 2391/17175, JIS, MSS-SP, BS 3799 |
| Pipe Size (NB/OD) | 1/8″ NB to 24″ NB / 1/4″ OD to 24″ OD |
| Tube Size (OD) | 1/2″ OD to 8″ OD |
| Wall Thickness | 4.0 mm to 100 mm (Schedule 5S to XXS) |
| Schedules | SCH 5, 10, 20, 30, 40, STD, 60, 80, XS, 100, 120, 140, 160, XXS |
| Form | Round, square, rectangular, coil form, “U” shape, hydraulic tubes |
| End Finish | Plain end, beveled end, threaded |
| Length | Single random, double random, cut-to-length, fixed length |
Featured-snippet note: this table is formatted to be eligible for a Google Featured Snippet / table-rich-result on queries like “pipe schedule chart” or “what sizes do steel pipes come in.”
Pipes and Tubes Dimensions & Wall Thickness Chart
| NPS (Inch) | OD (mm) | Sch 5S (mm) | Sch 10S (mm) | Sch 40S (mm) | Sch 80S (mm) |
|---|---|---|---|---|---|
| 1/8 | 10.29 | – | 1.24 | 1.73 | 2.41 |
| 1/4 | 13.72 | – | 1.65 | 2.24 | 3.02 |
| 3/8 | 17.15 | – | 1.65 | 2.31 | 3.20 |
| 1/2 | 21.34 | 1.65 | 2.11 | 2.77 | 3.73 |
| 3/4 | 26.67 | 1.65 | 2.11 | 2.87 | 3.91 |
| 1 | 33.40 | 1.65 | 2.77 | 3.38 | 4.55 |
| 1-1/4 | 42.16 | 1.65 | 2.77 | 3.56 | 4.85 |
| 1-1/2 | 48.26 | 1.65 | 2.77 | 3.68 | 5.08 |
| 2 | 60.33 | 1.65 | 2.77 | 3.91 | 5.54 |
| 2-1/2 | 73.03 | 2.11 | 3.05 | 5.16 | 7.01 |
| 3 | 88.90 | 2.11 | 3.05 | 5.49 | 7.62 |
| 3-1/2 | 101.60 | 2.11 | 3.05 | 5.74 | 8.08 |
| 4 | 114.30 | 2.11 | 3.05 | 6.02 | 8.56 |
| 5 | 141.30 | 2.77 | 3.40 | 6.55 | 9.52 |
| 6 | 168.28 | 2.77 | 3.40 | 7.11 | 10.97 |
| 8 | 219.08 | 2.77 | 3.76 | 8.18 | 12.70 |
| 10 | 273.05 | 3.40 | 4.19 | 9.27 | 12.70 |
| 12 | 323.85 | 3.96 | 4.57 | 9.52 | 12.70 |
| 14 | 355.60 | 3.96 | 4.78 | – | – |
| 16 | 406.40 | 4.19 | 4.78 | – | – |
| 18 | 457.20 | 4.19 | 4.78 | – | – |
| 20 | 508.00 | 4.78 | 4.78 | – | – |
| 22 | 558.80 | 4.78 | 5.54 | – | – |
| 24 | 609.60 | 5.54 | 6.35 | – | – |
| 30 | 762.00 | 6.35 | 7.92 | – | – |
Note: Dimensions are provided in millimeters for easier comparison. "–" indicates that the schedule is not commonly available for the respective pipe size.
Where Our Pipes & Tubes Are Used
Pipes and tubes are foundational to almost every modern industry — from transporting oil and gas safely to forming the structural bones of a building. Metinox Overseas supplies into:
- Oil, Gas & Petrochemical — line pipe, casing, and process piping for upstream and downstream operations.
- Desalination & Water Treatment — duplex and stainless steel tubes resistant to chloride-induced corrosion.
- Construction & Infrastructure — structural hollow sections, scaffolding tube, and architectural piping.
- Power Generation — alloy steel tubes for boilers, heat exchangers, and high-temperature service.
- Food Processing & Pharmaceuticals — sanitary-grade stainless tubes meeting hygienic processing standards.
- Fertilizer & Chemical Processing — corrosion-resistant alloy and duplex piping for aggressive process fluids.
- HVAC & Automotive — precision welded tubes for air and fluid flow systems.
Pipes vs. Tubes — What's the Real Difference?
This is one of the most frequently searched questions in the category, and none of the reviewed competitors answer it in a clean, scannable format. Use this table to capture that search volume and qualify for a featured snippet.
| Parameter | Pipes | Tubes |
|---|---|---|
| Measurement basis | Outside diameter (OD) and schedule | Outside diameter (OD) and wall thickness (precise) |
| Primary purpose | Transporting liquids and gases under pressure | Structural support, instrumentation, heat transfer |
| Shape | Almost always round | Round, square, rectangular, or custom profiles |
| Tolerance | Standard industrial tolerance | Tighter dimensional tolerance |
| Common standards | ASTM A106, API 5L, ASTM A312 | ASTM A213, ASTM A269, ASTM A554 |
| Typical joining method | Threaded or welded with fittings | Welded, brazed, or compression-fitted |
How Our Pipes & Tubes Are Made
Transparency about process builds trust — it shows buyers exactly how quality is engineered in, not just inspected at the end.
- Raw Material Selection: certified billets, coils, or bars sourced and verified against chemical composition requirements.
- Tube/Pipe Forming: seamless extrusion or precision welding (ERW/EFW), depending on the grade and application.
- Heat Treatment: annealing or normalizing to relieve stress and achieve required mechanical properties.
- Sizing & Shaping: cold or hot finishing to the exact OD, wall thickness, and tolerance specified.
- Surface Treatment: pickling, polishing, or passivation for corrosion resistance and surface finish.
- Quality Inspection: dimensional checks, hydrotesting, and non-destructive testing (ultrasonic, eddy current, radiographic).
- Packing & Dispatch: marking, coating/painting as required, and export-grade packaging for safe transit to Kuwait.
Standards & Certifications We Comply With
| Standard / Body | What It Covers |
|---|---|
| ISO 9001:2015 | Quality management system certification ensuring consistent manufacturing quality |
| ASTM (e.g., A312, A106, A213, A269) | Material and dimensional standards for seamless and welded steel pipes/tubes |
| ASME (B36.10, B36.19, SA specifications) | Pressure-rated piping standards for critical industries like oil and gas |
| API 5L | Line pipe specification for oil and gas transportation pipelines |
| DIN 2391 / 17175 | European standards for precision steel tubes and seamless tubes for elevated temperatures |
| JIS G3459 / G3461 | Japanese standards for stainless steel pipe quality and dimensions |
| EN 10216 / 10217 | European specifications for seamless and welded steel tubes in pressure applications |
These standards govern material properties, testing methods, and dimensional tolerances — giving Kuwaiti buyers, consultants, and EPC contractors confidence that every pipe and tube meets internationally recognized benchmarks before it reaches site.
FAQs — Pipes & Tubes in Kuwait
We supply seamless and welded pipes and tubes in carbon steel (ASTM A106/A53), stainless steel (304, 304L, 316, 316L, 321, 347), alloy steel (P5, P9, P11, P22, P91), and duplex/super duplex steel (S32205, S32750, S32760), manufactured to ASTM, ASME, API 5L, DIN, and JIS standards.
Pipes are measured by nominal outside diameter and schedule and are primarily used to transport liquids or gases under pressure. Tubes are measured by precise outside diameter and wall thickness and are typically used for structural, instrumentation, or heat-transfer applications. See the comparison table above for a full breakdown.
We manufacture pipes from 1/8″ NB to 24″ NB and tubes from 1/2″ OD to 8″ OD, with wall thicknesses ranging from 4.0 mm to 100 mm across schedules 5S through XXS.
Yes. Our pipes are manufactured to API 5L and ASTM A106 standards commonly required for oil and gas pipeline and process piping projects, and each shipment is supported by mill test certificates and, on request, third-party inspection reports.
Lead times depend on grade, size, and order volume, but our established freight lanes to Kuwait's ports typically allow standard orders to ship within a few weeks of order confirmation. Contact our team with your specification for an exact timeline.
Get a Quote for Pipes & Tubes in Kuwait Today
Ready to source reliable, certified pipes and tubes for your next project in Kuwait? Share your specification — grade, size, schedule, and quantity — and our technical team will respond with a detailed quote and lead time within 24 hours.
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