Alloy 20 Tube Fittings
Arrow Piping Solutions is a leading manufacturer and exporter of Alloy 20 Compression Tube Fittings, including Flared Tube Fittings, Bulkhead Union, Female Elbow, Male Connector, Branch Tees, Adapters, and more. We supply high-performance Alloy 20 instrumentation fittings used in a variety of demanding industrial applications.
Alloy 20, also known as Carpenter 20 or UNS N08020, is a nickel-iron-chromium alloy with additions of copper and molybdenum. This alloy offers excellent resistance to corrosion, especially in environments containing sulphuric acid, phosphoric acid, nitric acid, and chlorides. It is ideal for high-temperature and high-pressure applications across various industries.
We manufacture Alloy 20 Tube Fittings in a modern facility with advanced technology, ensuring precision and durability. Arrow Piping Solutions offers fittings in both imperial and metric sizes, with NPT, BSP, and other thread types, serving industries like chemical processing, oil & gas, food, and pharmaceuticals.
| Size Range | 1/16 in. to 2 in. & 2mm to 50 mm |
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| Thread Type | NPT, BSP, ISO, SAE, ASME |
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| Dimensional Range | 1/16 to 2 inches; 2 to 50 mm |
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| Working Pressure | 2000 to 6000 PSI |
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| Medium Pressure | Up to 20,000 psig (1378 bar) |
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| High Pressure | Up to 60,000 psig (4134 bar) |
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| Temperature Rating | Up to 1000°F (537°C) |
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| Types | Tube to Union, Tube to Male, Tube to Female, Instrument Pipe Fittings, Accessories |
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| STANDARD | UNS | WERKSTOFF NR. | EN | AFNOR |
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| Alloy 20 | N08020 | 2.4660 | NiCr20CuMo | Z2NCUD31-20AZ |
| Grade | C | Mn | Si | S | Cu | Ni | Cr | Fe | Mo | P |
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| 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 |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%) | Elongation |
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| 8.1 g/cm³ | 1443 °C (2430 °F) |
80,000 Psi / 551 MPa | 35,000 Psi / 241 MPa | 30% |
| OD (Fraction) | OD Actual (inches) | Thread Nominal Size | NPT (TPI) | BSP (TPI) |
| 5/16 | 0.3125 | 1/16 | 27 | 28 |
| 13/32 | 0.405 | 1/8 | 27 | 28 |
| 35/64 | 0.540 | 1/4 | 18 | 19 |
| 43/64 | 0.675 | 3/8 | 18 | 19 |
| 27/32 | 0.840 | 1/2 | 14 | 14 |
| 1-3/64 | 1.050 | 3/4 | 14 | 14 |
| 1-5/16 | 1.315 | 1 | 11.5 | 11 |
| 1-21/32 | 1.660 | 1-1/4 | 11.5 | 11 |
| 1-29/32 | 1.900 | 1-1/2 | 11.5 | 11 |
| 2-3/8 | 2.375 | 2 | 8 | 11 |
| 2-7/8 | 2.875 | 2-1/2 | 8 | 11 |
| 3-1/2 | 3.5 | 3 | 8 | 11 |
| 4 | 4.0 | 3-1/2 | 8 | 11 |
| 4-1/2 | 4.5 | 4 | 8 | 11 |
| 5-5/8 | 5.563 | 5 | 8 | 11 |
| 6-5/8 | 6.625 | 6 | 8 | 11 |
Arrow Piping Solutions supplies Alloy 20 Tube Fittings to the following sectors:
- Textile Machinery
- Oil and Gas Industry
- Pulp and Paper Industry
- Power Plants
- Energy Industries
- Furniture
- Pharmaceutical Processing Industry
- Modern Architecture
- Home Appliances
- Water Waste Projects
- Synthetic Fiber
- Heat Exchangers
- Fluid Piping
- Dairy and Food Processing