Alloy 31 Pipe | UNS N08031
Alloy 31 pipes, also known as UNS N08031, 1.4562 are a type of corrosion-resistant piping system. It is made from super-austenitic stainless steel known as Alloy 31. The pipes are designed to withstand harsh environments that are highly corrosive, such as those containing acids, chlorides, and other aggressive chemicals.
Our alloy 31 in pipe form is composed of the following elements:
C – .015% max
Si – .3% max
Mn – 2.0% max
P – 0.04% max
S – 0.03% max
Cr – 26% – 28%
Cu – 1.2% – 1.8%
Fe – Balance
Mo – 6% – 7%
N – 0.15% – 0.25
Ni – 30% – 32%
Your Expert Alloy 31 Pipe Supplier in China
Tuolian specializes in manufacturing alloy 31 pipes for more than 10 years. With its properties, the material become greatly used in various industries, including chemical processing, petrochemical, pharmaceutical, and offshore oil and gas production. They are commonly used in areas where other materials like nickel alloys or stainless steel, have failed due to corrosion.
Some of the specific scenarios where alloy 31 pipes are commonly used include heat exchangers, waste acid recovery equipment, pipe fittings, fine chemicals, organic acid and ester synthesis, sulfuric acid pickling equipment, ore processing, marine scrubber, mineral oil production, and refineries, components for FGD plants, etc.
Tuolian offer different types of alloy 31 pipes, including seamless pipes, welded pipe, ERW pipe, alloy 31 seamless and welded coiled tubing, and corrugated pipes.
At Tuolian, we can manufacture alloy 31 pipe forms using various methods, including seamless and welded. The specific production process will depend on factors such as wall thickness, pipe diameter, and intended use.
Contact us now to learn more and get a quote for your project!
- Features
- Mechanical Properties
- Physical Properties
- Sizes Available
- Specifications
- High corrosion resistance
- High strength and toughness, even at high temperatures
- Excellent weldability
- Good formability into a range of shapes
- Low coefficient of thermal expansion
- Good resistance to pitting and crevice corrosion
- Exhibits high resistance to phosphoric acid media
- Good resistance in boiling nitric acid
- Good thermal stability
Tensile strength: 100 ksi min.
Yield strength: 310 MPa min.
Elongation: 40% min.
Hardness: 90 max.
Density: 8.1 g/cm3
Density: 8.1 g/cm3
Melting point: 1350-1375°C
Thermal conductivity: 12.9 W/(m·K) at 20°C
Electrical resistivity: 1.3 μΩ·m at 20°C
Specific heat capacity: 410 J/(kg·K) at 20°C
Thermal expansion coefficient: 14.9 μm/(m·K) at 20-100°C
| Nominal Size | 1/4, 3/8, 1/2, 3/4, 1, 1 1/4, 1 1/2, 2, 2 1/2, 3, 3 1/2, 4, 4 1/2, 5, 6, 7, 8, 9, 10, 11, 12, 14, 16, 18, 20, 24, 26, 28, 30, 32, 34, 36, 40, 42, 48. |
| Outer Diameter (in.) | 0.5, .75, 1.0, 1.5, 2.0, 2.5, 3.0, 4.0, etc. |
| Inner Diameter (in.) | 0.37, 0.62, 0.87, 1.37, 1.87, 2.37, etc. |
| Wall thicknesses | SCH10, SCH 40, SCH XXS, etc |
| ASTM Grade | B622, B626, B366, B462, B564 |
| International Standard | ISO 15156, EN 10216-5, DIN 17456, ASME B31.3, NACE MR0175/MR0103 |
| Pipe End | Threaded, plain, beveled |
| Manufacturing techniques | Welded, seamless, ERW, EFW, CDW, fabricated |
| Test Certificate | Non-destructive tests, destructive testing, Heat treatment details, Date of production and batch/heat number, relevant standards and specifications, etc. |
| Packaging | Wooden crates, cardboard boxes, protective wrapping, labels, and marking |
