Thabiso Steel, located in Cape Town, South Africa, stands out as a top manufacturer and supplier of Carbon Steel ASME SA 519 Grade 1050 Tubing. Known for its precision engineering and dependable products, Thabiso Steel provides high-quality tubing that meets international standards for both performance and durability. With state-of-the-art manufacturing facilities and rigorous quality control processes, they ensure consistent dimensional accuracy and a superior surface finish. Dedicated to excellence, Thabiso Steel serves a wide range of industrial needs across sectors like construction, automotive, energy, and mechanical engineering, offering tubing solutions that boast high strength, versatility, and long-lasting performance even in tough conditions.
The Carbon Steel ASME SA 519 Grade 1050 Tubing is primarily made up of carbon (approximately 0.48–0.55%), manganese (0.60–0.90%), phosphorus (≤0.04%), and sulfur (≤0.05%). This tubing showcases a tensile strength of about 620 MPa and a yield strength close to 450 MPa, providing excellent toughness and machinability. Its high hardness and wear resistance make it ideal for high-stress applications. The uniform microstructure of the material guarantees durability, stability, and a great response to heat treatment, enhancing its mechanical performance.
Standard : ASTM A694 / ASME SA 694
Dimensions : ASME/ANSI 16.11, MSS SP-79, 83, 95, 97, BS 3799
Size : 1/8″ NB to 4″ NB
Type : Socketweld Fittings, Screwed-Threaded Fittings (NPT or PT Type)
Rating Pressure : Threaded End – 2000 /3000/ 6000 LBS. Socket-weld End – 3000 / 6000/ 9000 LBS.
| Grade | C | Si | Mn | P | S | Mo | Ni | Cr | Cu | V | Nb |
| F56 | 0.17-0.23 | 0.15-0.40 | 1.30-1.60 | ≤ 0.025 | ≤ 0.015 | 0.45-0.65 | ≤ 0.30 | ≤ 0.30 | ≤ 0.25 | – | 0.025~0.050 |
| Grade | Yield Strength, Min (KSI ) | Tensile Strength, Min (KSI) |
| A694 | 65 | 77 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
| ASME B16.11 | Factory-Made Wrought Socketweld Fittings | CS F56 Forged Screwed Elbows, Street Elbow, Carbon Steel F56 Screwed Unequal Tee, Steel Straight Tee, Carbon Steel F56 Reducing Coupling, Carbon Steel F56 Hex Plug, Forged Straight Tees, Socket Weld Pipe Cap, Forged Pipe Cap, Equal Crossess, CS F56 Threaded Bushing, Carbon Steel F56 Screwed Caps, Swedge Nipples |
| MSS-SP-79 | standard Practice covers ratings, tolerances, finish, dimensions, marking and material requirements for socket-welding | Carbon Steel F56 Barrel Nipples, CS F56 Forged Threaded Boss, Carbon Steel F56 Forged Hex Head Bull Plugs |
| MSS-SP-83 | Forged and Fabricated Socket-Welding Fittings for Low Pressure, Corrosion Resistant Applications | Carbon Steel F56 High Quality Socket weld 90° Elbow, Straight and Reducing-on-the-Tees, Forged 45° Short Radius Elbow, CS F56 caps, 3000LB Socket Weld Cross |
| MSS-SP-95 | Integrally Reinforced Forged Fittings – Socket Welding, Threaded, and Buttwelding Ends | CS F56 Socket weld Long Radius 90 Degree Elbows, Reducing Nipple, Socket weld Bushing, Threaded Plug, End Pipe caps, Carbon Steel F56 Coupling |
You’ll find Carbon Steel ASME SA 519 Grade 1050 Tubing widely used in mechanical and structural applications where strength and toughness are crucial. It’s commonly found in the production of shafts, axles, hydraulic cylinders, and parts of machinery that face dynamic loading. This tubing is also essential in automotive components, agricultural machinery, and construction frameworks. Thanks to its excellent machinability and hardness, it’s perfect for precision engineering tasks. Moreover, it plays a vital role in power generation, oil and gas, and general engineering industries, ensuring a long service life and reliability under heavy-duty operational conditions.
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.
Copyright 2025 ThabisoSteel. All rights reserved
