Thabiso Steel, located in Cape Town, South Africa, stands out as a top manufacturer and supplier of high-quality carbon steel piping components. One of their key products is the **Carbon Steel Buttweld Pipe Fittings**, which are expertly crafted to connect pipes of different diameters and facilitate smooth changes in direction or flow within piping systems. Built to meet international standards, these fittings ensure a seamless and leak-proof connection, making them ideal for critical applications. Thabiso Steel caters to various industries, including oil and gas, petrochemical, energy, construction, and water treatment, providing durable and precisely engineered solutions.
These Carbon Steel Buttweld Pipe Fittings are made from low to medium carbon steel grades, which offer impressive strength, ductility, and weldability. You’ll find common types like elbows, tees, reducers, caps, and crosses, available in both seamless and welded options. They come in various schedules and thicknesses to suit different pressure and flow needs. Typically, they boast **high tensile strength (400–700 MPa)**, **good elongation (20–25%)**, and **strong resistance to mechanical stress and impact**. Their smooth internal surface helps minimize pressure drops and turbulence, enhancing overall flow efficiency.
| Pipe Fittings Specifications | ASTM A234/ ASME SA234 |
|---|---|
| Carbon Steel Pipe Fittings size | Seamless Butt Weld Fittings : 1/2″ – 10″ Welded Butt Weld Fittings : 1/2″ – 48″ |
| CS Pipe Fittings Dimensions | ASME/ANSI B16.9, ASME B16.28, MSS-SP-43, BS4504, BS4504, BS1800, BS10 |
| Buttweld Fittings Thickness | SCH10, SCH20, SCH30, STD SCH40, SCH60, XS, SCH 80, SCH 100, SCH 120, SCH 140, SCH 160, XXS available with NACE MR 01-75 |
| Buttweld Pipe FittingsType | DN15-DN1200 |
| ASTM A234 Buttweld Fitting Connection | Welding |
| Bending Radius | R=1D, 2D, 3D, 5D, 6D, 8D, 10D or Custom ASTM A234 Pipe Fitting |
| Size Range | ½” NB to 24″ NB in Sch 10s, 40s, 80s, 160s, XXS. (DN6~DN100) ASTM A234 Buttweld Fitting |
| ASTM A234 Buttweld Fittings Manufacturing process | Push, Press, Forge, Cast, etc. |
| Carbon Steel Buttweld Pipe Fittings Test Certificates | EN 10204/3.1B Raw Materials Certificate 100% Radiography Test Report Third Party Inspection Report, etc |
| SA 234 Pipe Fittings Origin & Mills | Japanese, Indian, USA, Korean, European, Ukraine, Russian |
| Specialized manufacturer of | CS 90º Elbows, 45º Elbows, Tees, Cross, Reducer, Pipe Cap, Stub End, Pipe Bend |
| Element | Carbon Steel Buttweld Fittings (% by weight) |
|---|---|
| Carbon (C) | 0.05% – 2.1% |
| Manganese (Mn) | 0.30% – 1.65% |
| Silicon (Si) | 0.15% – 0.60% |
| Phosphorus (P) | ≤ 0.035% |
| Sulfur (S) | ≤ 0.040% |
| Iron (Fe) | Remainder (balance) |
| Properties OF Carbon Steel Buttweld Pipe Fittings | Metric | Imperial |
| Tensile Strength For Carbon Steel | 595 MPa | 86300 psi |
| Yield Strength For CS | 260 MPa | 37700 psi |
| Elasticity Modulus | 200 GPa | 29000 ksi |
| Poisson’s ratio | 0.27-0.30 | 0.27-0.30 |
| Elongation At break in 50 millimeter | 55% | 55% |
| Hardness And Rockwell B | 85 | 85 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
| NPS (Normal Pipe Size) | O.D. (Outside Diameter) | Ave. I.D. (Inside Daimeter) | Minimum WALL | Normal Weight Chart | Maximum W.P. psi |
| 1/4″ | .540 | .344 | .088 | .086 | 780 |
| 3/8″ | .675 | .473 | .091 | .115 | 620 |
| 1/2″ | .840 | .602 | .109 | .170 | 590 |
| 3/4″ | 1.050 | .804 | .113 | .226 | 480 |
| 1″ | 1.315 | 1.029 | .133 | .333 | 450 |
| *1-1/4″ | 1.660 | 1.360 | .140 | .450 | 370 |
| *1-1/2″ | 1.900 | 1.590 | .145 | .537 | 330 |
| *2″ | 2.375 | 2.047 | .154 | .720 | 280 |
| 2-1/2″ | 2.875 | 2.445 | .203 | 1.136 | 300 |
| *3″ | 3.500 | 3.042 | .216 | 1.488 | 260 |
| 3-1/2″ | 4.000 | 3.521 | .226 | 1.789 | 240 |
| *4″ | 4.500 | 3.998 | .237 | 2.118 | 220 |
| 5″ | 5.563 | 5.016 | .258 | 2.874 | 190 |
| *6″ | 6.625 | 6.031 | .280 | 3.733 | 180 |
| *8″ | 8.625 | 7.942 | .322 | 5.619 | 160 |
| *10″ | 10.750 | 9.976 | .365 | 7.966 | 140 |
| *12″ | 12.750 | 11.889 | .406 | 10.534 | 130 |
| *14″ | 14.000 | 13.073 | .437 | 12.462 | 130 |
| *16″ | 16.000 | 14.940 | .500 | 16.286 | 130 |
| *18″ | 18.000 | 16.809 | .562 | 20.587 | 130 |
| *20″ | 20.000 | 18.743 | .593 | 24.183 | 120 |
| *24″ | 24.000 | 22.544 | .687 | 33.652 | 120 |
| Pressure-Temperature ratings for ASME B16.9 Carbon Steel Buttweld Pipe Fittings (psig) | |||||
|---|---|---|---|---|---|
| Temperature Ratings | Pressure Class | ||||
| 150 | 300 | ||||
| 1/4 – 1 Inches | 1 1/4 – 2 Inches | 2 1/2 – 3 Inches | |||
| (oF) | (oC) | ||||
| -20 to 150 | -29 to 66 | 300 | 2000 | 1500 | 1000 |
| 200 | 93 | 265 | 1785 | 1350 | 910 |
| 250 | 121 | 225 | 1575 | 1200 | 825 |
| 300 | 149 | 185 | 1360 | 1050 | 735 |
| 350 | 177 | 150 | 1150 | 900 | 650 |
| 400 | 204 | – | 935 | 750 | 560 |
| 450 | 232 | – | 725 | 600 | 475 |
| 500 | 260 | – | 510 | 450 | 385 |
| 550 | 288 | – | 300 | 300 | 300 |
These fittings are extensively used in industries that deal with high-pressure and high-temperature environments. Applications range from pipelines for oil, gas, steam, water, and chemical transport to structural and mechanical systems. Their ease of welding makes them perfect for complex pipeline configurations that demand strength and long-lasting performance. Thabiso Steel guarantees that each fitting is manufactured to comply with international specifications such as ASME, ASTM, and DIN, providing customers with reliable, cost-effective, and high-performance solutions for all their needs.
Carbon steel buttweld pipe fittings are found in common application in industries for their durability, strength, and affordability. They offer safe connections in piping systems, especially in oil, gas, petrochemical, power plants, and construction. Fittings are applied for the construction of bends, tees, reducers, and caps in pipes, facilitating easy flow and pressure control. They are resistant to corrosion and withstand high temperatures due to their superior quality, thus making them perfect for heavy-duty use. They provide long-term and leak-free performance for critical systems.
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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