Alloy 20 is a high-performance, corrosion-resistant material that is widely used in various industries, especially in aggressive environments where other materials might fail. Alloy 20 fasteners, such as bolts, nuts, screws, and washers, are essential components in construction, manufacturing, and maintenance applications. These fasteners play a crucial role in ensuring the integrity and durability of structures and equipment in challenging conditions.
Alloy 20, also known as Carpenter 20, is a nickel-iron-chromium alloy with additions of copper and molybdenum. This combination of elements provides exceptional resistance to various corrosive agents, including sulfuric acid, phosphoric acid, nitric acid, and chloride environments. The alloy's resistance to pitting, crevice corrosion, and stress corrosion cracking makes it an excellent choice for fasteners in corrosive environments.
Table Of Content
Alloy 20 fasteners are commonly used in industries such as chemical processing, pharmaceuticals, food processing, and petrochemicals. The fasteners are available in various types and sizes, including Alloy 20 bolts, nuts, screws, washers, and studs. These components are manufactured to meet industry standards and specifications, ensuring compatibility with existing systems and equipment.
One of the key advantages of Alloy 20 fasteners is their versatility. They can be used in a wide range of temperatures and exhibit excellent mechanical properties even at elevated temperatures. This makes them suitable for applications where exposure to high temperatures is a concern.
The manufacturing of Alloy 20 fasteners involves precision engineering and strict quality control to meet the high standards required in corrosive environments. Cold working and heat treatment processes are often employed to enhance the mechanical properties of the fasteners, ensuring they can withstand the demanding conditions they may be subjected to.
ASTM / ASME
DIN, ISO ,JIS ,GB, IS, BS, ASTM and all International Standards
M3 - M100 | 3/6″ - 4″ | Custom Sizes
DIN 931, 933, 934, 7991, 976, 125, ASME B18.2.1, B18.3
UNF, BSW, BSF, METRIC, UNC, or as required
ASME B1.1 2A/3A – 2B/3B Inch Unified Threads and B1.13M 6h-6G Metric Coarse Threads
Hex, Threading, Square, Round as per Gauge Etc.
Hex, Square, Round, Hex flange, Flat, T-head & Triangular etc.
| STANDARD | WERKSTOFF NR. | UNS | EN | AFNOR |
| Alloy 20 | 2.4660 | N08020 | NiCr20CuMo | Z2NCUD31-20AZ |
| 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 % |
Oil & Gas Industrires
Chemical Industries
Construction Industries
Offshore Pipelines & Pipe Works
Petrochemical Industry
Shipbuilding Industries
Hydraulic Applications
Piping Systems
Refining Industry
Food Processing Industry
Pulp & Paper Industry
Power Plant Industry
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