Thabiso Steel is a well-respected manufacturer and supplier located in Cape Town, South Africa, specializing in high-quality J356 tubing that meets the demanding needs of today’s industries. Known for its precision engineering and top-notch material integrity, Thabiso Steel crafts J356 tubes that deliver outstanding performance, durability, and precise dimensions. These tubes are specifically designed to thrive in high-pressure, high-temperature, and dynamic mechanical settings. With state-of-the-art production facilities and rigorous quality control measures, the company offers J356 tubing solutions for various sectors, including automotive, construction, oil and gas, and heavy machinery, catering to both standard and custom specifications.
J356 tubing is a low-carbon steel, widely utilized in structural and fluid systems applications. Its material composition is generally carbon (0.15-0.20%), manganese (0.30-0.60%), phosphorus (up to 0.04%), and sulfur (up to 0.05%). J356 tubing is famous for its combination of strength, ductility, and weldability and provides good mechanical properties like tensile strength (45-60 ksi), yield strength (30-45 ksi), and elongation (up to 30%). These characteristics make it suitable for automotive, industrial, and construction applications where strength and performance under stress are critical.
| Grade: | ASME/ASTM SA179, SA192, SA210, SA178, SA214, API 5L |
|---|---|
| Size: | 1/8” NB TO 24” NB Sch 40/80/160/XXS |
| Form | Round, Square, Rectangular, Coil, U Tube, |
| Length | Single Random, Double Random & Required Length |
| End | Plain End, Bevelled End |
| Type | Seamless / ERW / Welded |
| Certification For Carbon | Mill Test Certificate as per EN 10204 / 3.2B |
| General Requirements | ASTM A 530/A 530M |
| Dimensional Tolerances | ANSI B 36.10 |
| OD Range | 1.250″ – 6.000″ (30-150mm) |
| Wall Range | 0.095″ – 1.000″ (.2.5-25mm) |
| CHEMICAL REQUIREMENTS | ||
| Element | Cast or Heat Analysis: Weight % | |
| J356 | J356 Type-A | |
| Carbon | 0.06 Min/0.18 Max | 0.02 Min/0.18 Max |
| Manganese | 0.30 Min/0.60 Max | 0.10 Min/0.60 Max |
| Phosphorus | 0.04 Max | 0.04 Max |
| Sulfur | 0.06 Max | 0.05 Max |
| MECHANICAL PROPERTIES | |
| Properties | Values |
| Yield Strength (Min) | 25,000 PSI |
| Tensile Strength (Min.) | 45,000 PSI |
| Elongation in 2” (Min) | 35% a |
| Hardness (Rockwell B)(Max) | 65 b |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
| TUBING WALL THICKNESS TOLERANCES | |||
|---|---|---|---|
| Nominal Wall Thickness (Inches) |
Nominal Tube OD Through 1” (+/- Inches) |
Nominal Tube OD Over 1” Through 2” (+/- Inches) |
Nominal Tube OD Over 2” Through 4” (+/- Inches) |
| .028 (22 Ga) | .002/.003 | .003/.003 | .003/.003 |
| .035 (20 Ga) | .002/.004 | .002/.004 | .002/.004 |
| .042 (19 Ga) | .002/.004 | .002/.004 | .002/.005 |
| .049 (18 Ga) | .004/.005 | .003/.005 | .004/.008 |
| .058 (17 Ga) | .006/.006 | .004/.008 | .004/.008 |
| .065 (16 Ga) | .006/.006 | .004/.008 | .004/.008 |
| .072 (15 Ga) | .006/.010 | .006/.010 | .006/.010 |
| .083 (14 Ga) | .006/.010 | .006/.010 | .006/.010 |
| .095 (13 Ga) | .006/.010 | .006/.010 | .006/.010 |
| .100 | .006/.010 | .006/.010 | .006/.010 |
| .109 (12 Ga) | .006/.010 | .006/.010 | .006/.010 |
| .118 | .006/.010 | .006/.010 | .006/.010 |
| .120 (11 Ga) | .006/.010 | .006/.010 | .006/.010 |
| .134 (10 Ga) | .006/.010 | .006/.010 | .006/.010 |
| .148 (9 Ga) | — | .007/.001 | .007/.011 |
| .156 (5/32) | — | .007/.011 | .007/.011 |
| .165 (8 Ga) | — | .007/.011 | .007/.011 |
| .180 (7 Ga) | — | .007/.011 | .007/.011 |
| .197 | — | .008/0.12 | .008/0.12 |
| .203 (6 Ga) | — | .008/0.12 | .008/0.12 |
| .219 (7/32) | — | .008/.012 | .008/.012 |
| .236 | — | .014/.018 | .014/.018 |
| .238 (4 Ga) | — | .014/.018 | .014/.018 |
| .259 (3 Ga) | — | .014/.020 | .014/.020 |
J356 tubing finds extensive applications across industries because it possesses superior mechanical properties and flexibility. Typical applications involve the manufacturing of automobiles, where it is used as part of fuel lines, brake lines, and structural components. It has the strength to withstand high pressure and remain robust, making fluid transportation systems its best application. Additionally, J356 tubing is used in construction for structural support, in hydraulic applications, and in equipment manufacture requiring strength and corrosion resistance. Its weldability also makes it a popular choice in custom fabrication uses in HVAC, farm equipment, and general engineering, as a consistent solution for numerous applications.
ThabisoSteel 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 Cape Town, South Africa.
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