Marzouk Steel, based in Tunis, Tunisia, is a leading manufacturer and supplier of high-quality steel products, serving industries that demand precision, strength, and reliability. Among its specialized offerings is Alloy Steel T12 Tubing, designed for high-pressure, high-temperature, and mechanically demanding applications. Manufactured using advanced technology and strict quality control, T12 tubing delivers consistent performance, durability, and dimensional accuracy. Marzouk Steel ensures that every T12 tube meets international standards, providing engineers and fabricators with materials they can trust for industrial, power generation, and mechanical systems where long-term reliability and safety are critical.
Alloy Steel T12 Tubing is a chromium-molybdenum-vanadium (Cr-Mo-V) alloy steel engineered for superior high-temperature strength, toughness, and creep resistance. Its chemical composition, including carbon, chromium, molybdenum, and vanadium, enhances thermal stability, impact resistance, and fatigue performance. T12 tubing responds well to heat treatment, allowing precise control of hardness, tensile strength, and overall mechanical properties. With excellent dimensional stability and high tensile and yield strength, T12 tubing maintains reliability and structural integrity under demanding operating conditions.
| SA213 T12 Tube Standard | ASTM A213 T12, SA213 T12 (with IBR Test Certificate) |
|---|---|
| SA213 T12 Tube Specifications | ASTM A213 & ASTM A209 (T1 , Ta, T1b) BS/3059/90/PartII/620 & 622 DIN/17175/13CrMo44 DIN/17175/10CrMo910 DIN/17175/15Mo3 |
| SA213 T12 Tube Size | 6.35 mm OD to 101.6 mm OD |
| Sch. & Swg. | 10 Swg., 12 Swg., 14 Swg., 16 Swg., 18 Swg., 20 Swg., 3.6 mm Thk |
| SA213 T12 Tube Thickness | 3-12mm |
| SA213 T12 Tube Origin | European, Japanese, Korean, US, Russian, Indian (Strictly No Chinese Material) |
| SA213 T12 Tube Tolerance | Cold drawn pipe: +/-0.1mm
Cold rolled pipe: +/-0.05mm |
| Craft | Cold rolled and Cold drawn |
| SA213 T12 Tube Type | Seamless / ERW / Welded / Fabricated |
| SA213 T12 Tube available in Form of | Round, Square, Rectangular, Hydraulic Etc. |
| SA213 T12 Tube Length | Standard Double & In Cut length also. |
| SA213 T12 Tube End | Plain End, Beveled End, Treaded |
| Specialized in | ASME SA213 T12 Boiler Tube, SA213 T12 Heater Tube, SA213 T12 Heat Exchanger Tube |
| SA213 gr T12 Additional Testing | NACE MR 0175, NACE TM0177, NACE TM0284, HIC TEST, SSC TEST, H2 SERVICE, IBR, etc. |
| SA213 grade T12 Tube Application | Seamless Ferritic Alloy Steel Tube for High-Temperature Service |
| Grade | C≤ | Mn | P≤ | S≤ | Si≤ | Mo |
|---|---|---|---|---|---|---|
| T12 | 0.15 max | 0.30~0.60 | 0.025 | 0.025 | 0.50~1.0 | 0.44~0.65 |
| Grade | Tensile Strength, MPa | Yield Strength, MPa | Elongation, % | Hardness, HB |
|---|---|---|---|---|
| T12 | 415 min | 220 min | 30 min | 163 max |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
| Outside Diameter | OD Tolerance | WT Tolerance | Ovality Tolerance | Cut Length Tolerance |
| OD≤ 12, 7 mm | ± 0, 13 mm | ± 15 % | – | + 3, 18 mm, – 0 mm |
| 12, 7 mm < OD ≤ 38, 1 mm | ± 0, 13 mm | ± 10 % | max, 1, 65 mm | + 3, 18 mm, – 0 mm |
| 38, 1 mm < OD ≤ 88, 9 mm | ± 0, 25 mm | ± 10 % | max, 2, 41 mm | + 4, 76 mm, – 0 mm |
Marzouk Steel is a leading manufacturer and distributor of high-quality Alloy Steel T12 Tubing in Tunis, Tunisia. We offer premium steel materials and an extensive range of products, including Alloy Steel, Carbon Steel, Mild Steel, and Galvanized Steel. Our comprehensive inventory includes Tubes, Pipes, Flanges, Pipe Fittings, Forged Fittings, Sheets, and Plates. Committed to timely delivery and outstanding customer service, we utilize only the finest raw materials to ensure superior performance in industrial applications with demanding specifications. Contact us today for all your Alloy Steel T12 Tubing needs!
Alloy Steel T12 Tubing is widely used in industries requiring strength, durability, and thermal stability. It is commonly applied in boilers, heat exchangers, high-pressure pipelines, and components of power plants, petrochemical facilities, and industrial machinery. The tubing is engineered to withstand extreme temperatures, high pressures, and cyclic loading while maintaining structural integrity. Engineers and fabricators rely on T12 tubing for critical applications where performance, safety, and long-term reliability are essential. Its combination of toughness, thermal resistance, and mechanical strength ensures efficient and durable operation in demanding industrial and mechanical systems.
Marzouk Steel is a leading manufacturer, supplier and exporter of high-quality Carbon Steel, Alloy Steel, Mild Steel and Galvanized Steel products. Our extensive product range includes Pipes, Tubes, Flanges, Pipe Fittings, Forged Fittings, Sheets and Plates, catering to various industries in Tunis, Tunisia.
Copyright 2025 Marzouk Steel. All rights reserved
