Khuliso Fittings is a leading manufacturer and supplier of high-quality pipe fittings, based in Cape Town, South Africa. Specializing in a wide range of materials, they offer durable and precision-engineered solutions for various industries. Among their key products are Alloy 20 Buttweld Fittings, designed for superior corrosion resistance and reliability in harsh environments. Khuliso Fittings is committed to delivering exceptional customer service, ensuring that every product meets the highest standards of performance and quality.
| 20 Pipe Fittings Specifications | ASTM B366/ ASME SB366 |
|---|---|
| Alloy 20 Pipe Fittings size | 20 Seamless Butt Weld Fittings : 1/2″ – 10″ 20 Welded Butt Weld Fittings : 1/2″ – 48″ |
| Alloy 20 Pipe Fittings Dimensions | ASME/ANSI B16.9, ASME B16.28, MSS-SP-43, BS4504, BS4504, BS1560, BS10 |
| Alloy 20 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 |
| 20 Buttweld Pipe FittingsType | DN15-DN1200 |
| ASTM B366 20 Buttweld Fitting Connection | Welding |
| Bending Radius | R=1D, 2D, 3D, 5D, 6D, 8D, 10D or Custom ASTM B366 Alloy 20 Pipe Fitting |
| Size Range | ½” NB to 24″ NB in Sch 10s, 40s, 80s, 160s, XXS. (DN6~DN100) ASTM B366 20 Buttweld Fitting |
| ASTM B366 20 Buttweld Fittings Manufacturing process | Push, Press, Forge, Cast, etc. |
| Alloy 20 Buttweld Pipe Fittings Test Certificates | EN 10204/3.1B Raw Materials Certificate 100% Radiography Test Report Third Party Inspection Report, etc |
| SA 366 20 Pipe Fittings Origin & Mills | Japanese, Indian, USA, Korean, European, Ukraine, Russian |
| Specialized manufacturer of | Alloy UNS N08020, 90º Elbows, 45º Elbows, Tees, Cross, Orangeucer, Pipe Cap, Stub End, Pipe Bend |
Alloy 20 Buttweld Fittings are made from a nickel-chromium-molybdenum-based alloy designed for excellent corrosion resistance, particularly in acidic environments. The composition includes approximately 20% chromium, 29-34% nickel, 3-4.5% molybdenum, and small amounts of copper, iron, and manganese. This combination provides resistance to sulfuric acid, phosphoric acid, and other corrosive substances. The mechanical properties of Alloy 20 include a tensile strength of 45-70 ksi, a yield strength of 25 ksi, and an elongation of 30%. These fittings are highly durable and suitable for industries requiring high resistance to stress and corrosion.
| Grade | C | Mn | Si | S | Cu | Ni | Cr | Fe | Mo | P |
| Alloy 20 | 0.07 max | 2.00 max | 1.00 max | 0.035 max | 3.00 – 4.00 | 32.00 – 38.00 | 19.00 – 21.00 | 29.85 min* | 2.00 – 3.00 | 0.045 max |
| Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| Alloy 20 | 8.1 g/cm3 | 1443 °C (2430 °F) | Psi -80,000, MPa -551 | Psi – 35,000, MPa – 241 | 30 % |
At Khuliso Fittings, we take pride in being a top-notch manufacturer and supplier of Alloy 20 Buttweld Fittings right here in Cape Town, South Africa. Our reputation is built on providing high-performance, corrosion-resistant piping components that meet the needs of industries working in tough environments. Our Alloy 20 Buttweld Fittings are specifically designed to handle strong acids, particularly sulfuric acid, making them perfect for applications in the chemical, pharmaceutical, and food processing sectors. We hold quality and reliability close to our hearts. With our precision manufacturing, adherence to international standards, and quick customer support, we make sure our clients get dependable and long-lasting solutions tailored to their unique project requirements.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
| STANDARD | WERKSTOFF NR. | UNS | EN | AFNOR |
| Alloy 20 | 2.4660 | N08020 | NiCr20CuMo | Z2NCUD31-20AZ |
These Alloy 20 Buttweld Fittings are made from a nickel-iron-chromium alloy, enhanced with copper and molybdenum. The typical composition features 32–38% nickel, 19–21% chromium, 2–3% molybdenum, 3–4% copper, and a maximum of 0.07% carbon. This special blend provides outstanding resistance to pitting, crevice corrosion, and stress corrosion cracking, especially in environments with sulfuric acid. On the mechanical side, Alloy 20 boasts a tensile strength of about 551 MPa and a yield strength of around 241 MPa. These fittings are not only strong but also ductile, making them ideal for pressure systems and corrosive settings that demand reliable and durable performance over extended service periods.
Alloy 20 Buttweld Fittings find their place in various industries that deal with harsh chemicals and corrosive fluids. They are especially crucial in chemical processing plants where sulfuric, phosphoric, and nitric acids are commonly used. You’ll often see them in applications like heat exchangers, reactors, storage tanks, and piping systems across the pharmaceutical, food processing, and petrochemical sectors. Their resistance to chloride-induced corrosion also makes them a great fit for marine and offshore environments.
| Standard Code | Standard Name |
| ANSI ASME SA-366 | Forged Durimet pipe fittings |
| ANSI ASME B16.9 | Factory-Made wrought steel pipe fittings |
| ANSI ASME B16.28 | Wrought steel butt-welding short radius elbows and returns |
| ISO 5251 | Alloy butt-welding fittings |
| MSS SP-43 | Wrought Alloy butt-welding fittings |
| MSS SP-75 | Forging butt-welding fittings |
| German Steel Pipe Fittings Standard | |
| DIN 2605 | Steel butt-welding pipe fittings.elbows and bends |
| DIN 2615 | Steel butt-welding pipe fittings.tees |
| DIN 2616 | Steel butt-welding pipe fittings.reducers |
| DIN 2617 | Steel butt-welding pipe fittings.caps |
| Japanese Steel Pipe Fittings Standard | |
| JIS B2311 | Universal steel butt-welding pipe fittings |
| JIS B2312 | Steel butt-welding pipe fittings |
| JIS B2313 | Steel plate butt-welding pipe fittings |
| Other Steel Pipe Fittings Standard | |
| EN 1025 | 3 Butt-welding pipe fittings |
Yes, custom sizes for Alloy 20 Buttweld Fittings are available at Khuliso Fittings. We offer tailored solutions to meet your specific requirements, ensuring optimal performance for your projects. For more information, please contact us at sales@khulisofittings.co.za.
Alloy 20 Buttweld Fittings are widely used in industries that require excellent corrosion resistance, especially in environments involving sulfuric acid, phosphoric acid, and other corrosive chemicals. Common applications include chemical processing, food and beverage production, pharmaceuticals, and petrochemical industries. These fittings are ideal for piping systems handling corrosive fluids, wastewater treatment, and marine environments. Alloy 20’s superior weldability and stress corrosion cracking resistance also make it suitable for manufacturing equipment, tanks, and reactors, ensuring reliability and longevity in challenging conditions.
Get in touch with one of our Technical Sales Representatives to request a quote or get answers to any questions you may have.
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