ARK Stainless Inc. is a trusted name in the supply and manufacturing of premium-grade Nickel Alloy Buttweld Fittings that offer excellent resistance to corrosion and outstanding mechanical properties. Designed to perform in both room and elevated temperatures, these fittings are highly versatile and suitable for a wide range of commercial and industrial applications.
We supply a variety of grades including Nickel 200 and Nickel 201, which are known for their exceptional thermal and electrical conductivity, as well as excellent resistance to oxidation and rust. The chemical composition of these alloys includes elements like carbon, manganese, silicon, sulfur, copper, and ferrous iron, contributing to their remarkable strength and stability. Our Nickel Alloy buttweld fittings are manufactured in accordance with international specifications such as ASTM B366 / ASME SB366 and dimensional standards like ASME B16.9, B16.28, and MSS-SP-43, ensuring reliable performance and consistent quality across all applications.
| Material / Purity | Ni | Fe | Mn | Si | C | S | Cu |
|---|---|---|---|---|---|---|---|
| Alloy 200 | 99.00 | 0.40 | 0.35 | 0.35 | 0.15 | 0.01 | 0.25 |
| Alloy 201 | 99.00 | 0.40 | 0.35 | 0.35 | 0.02 | 0.01 | 0.25 |
| Nickel Alloy 200 | ||
|---|---|---|
| Properties | Metric | Imperial |
| Tensile strength (annealed) | 462 MPa | 67000 psi |
| Yield strength (annealed) | 148 MPa | 21500 psi |
| Elongation at break (annealed prior to test) | 45% | 45% |
| Nickel Alloy 201 | ||
| Properties | Metric | Imperial |
| Tensile strength (annealed) | 403 MPa | 58500 psi |
| Yield strength (annealed) | 103 MPa | 14900 psi |
| Elongation at break (annealed prior to test) | 50% | 50% |
Different types of buttweld fittings are separated based on the shapes and functions that they perform. Like tees are used for making the connection between pipelines to distribute the fluid running through it. In the same way, there are some other types of Nickel 200/201 Buttweld Fittings like 45-degree elbow, crosses, reducers, caps, stub ends, union, coupling, threaded pipe fittings, etc.
Nickel 200/201 Buttweld Fittings are packed either according to the general approach or as per the customer’s specifications. But before packing, they also go through some important tests like PMI test, chemical, and mechanical analysis, 100% raw material authenticity tests, third party inspection, radiography test, etc.
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN |
|---|---|---|---|---|---|---|---|
| Nickel 200 | 2.4066 | N02200 | NW 2200 | NA 11 | НП-2 | N-100M | Ni 99.2 |
| Nickel 201 | 2.4068 | N02201 | NW 2201 | NA 12 | НП-2 | - | LC-Ni 99 |
