Carbon Steel ASME SA 519 Grade 1012 Tubing
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Thabiso Steel, located in Cape Town, South Africa, has built a solid reputation as a reliable supplier and manufacturer of high-quality steel products that adhere to international standards for quality and performance. One of their standout offerings is the Carbon Steel ASME SA 519 Grade 1012 Tubing, a seamless mechanical tubing celebrated for its remarkable formability, weldability, and consistent dimensions. This low-carbon steel tubing is perfect for light to medium-duty applications in the automotive, mechanical, and general engineering fields. Thabiso Steel is dedicated to supplying materials that ensure dependable performance, precise specifications, and long-lasting durability for clients throughout Southern Africa’s industrial sector.
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ASTM SA 519 Grade 1012 Hot Rolled Steel Tube

CS SA 519 Grade 1012 Boiler Tubes
Grade SA 519 Grade 1012 Hot Finished Seamless Tubing
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What is Carbon Steel ASME SA 519 Grade 1012 Tubing?
The Carbon Steel ASME SA 519 Grade 1012 Tubing features a low-carbon steel composition, containing about 0.10–0.14% carbon and 0.30–0.60% manganese. This blend provides excellent machinability and moderate tensile strength, typically ranging from 365 to 485 MPa, with a yield strength close to 200 to 250 MPa. Depending on the specific application, the material is often available in cold-drawn, hot-finished, or normalized conditions. Its low carbon content makes welding and forming a breeze, while its smooth internal surface and precise dimensions make it ideal for machining, bending, and fabrication in moderate-load settings.
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Carbon Steel ASME SA 519 Grade 1012 Tubing Specifications
| Size | : | 10-324mm |
| Thickness | : | 1-30mm |
| Length | : | 14000mm max |
| Type | : | Seamless and Mechanical Austenitic Stainless Steel Tubing for General Service |
| Grades | : | ASTM A519 Tubing, Seamless Tubing, AISI 4130 Tube, Seamless Tube, 1012 |
Carbon Steel ASME SA 519 Grade 1012 Tubing Chemical Properties
| Carbon | Silicon | Manganese | Phosphorous | Sulphur | Molybdenum | Nickel | Chromium | Copper | Others |
|---|---|---|---|---|---|---|---|---|---|
| 0.10-0.15 | – | 0.30-0.60 | 0.04 | 0.05 | – | – | – | – | – |
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Top Manufacturer and Supplier of Carbon Steel ASME SA 519 Grade 1012 Tubing in Cape Town, South Africa
You’ll find Carbon Steel ASME SA 519 Grade 1012 Tubing in various applications where easy fabrication and moderate strength are essential. It’s commonly used in automotive parts like bushings, spacers, and brackets, as well as in light structural assemblies and mechanical equipment. Thanks to its excellent machinability and weldability, it’s a great choice for precision components, hydraulic tubing, and fluid transfer lines in low-pressure systems. Additionally, it finds its place in agricultural machinery and equipment, showcasing its versatility across different industries.
Carbon Steel ASME SA 519 Grade 1012 Tubing Equivalent
| DIN | EN | BS | NFA | ASTM | ASME |
|---|---|---|---|---|---|
| DIN 23912) Grade St 35 | – | – | ASTM A519 Grade 1012 | ASME SA 519 Grade 1012 | – |
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Types of Carbon Steel ASME SA 519 Grade 1012 Tubing






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Uses of Carbon Steel ASME SA 519 Grade 1012 Tubing
Carbon Steel ASME SA 519 Grade 1012 Tubing is extensively used in mechanical and structural uses owing to its high machinability, weldability and fair strength. It is widely applied in hydraulic systems, precision machining, automotive parts, and general fabrication. The key industries that make use of this tubing are automotive, construction, manufacturing, and engineering. Its seamless design provides high durability and accuracy, thus being suitable for applications that need uniform mechanical properties, pressure resistance, and stable performance in challenging environments.
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