Stainless Steel 321 and 321H wires are high-performance materials widely used in various industrial applications due to their excellent corrosion resistance, high temperature stability, and durability. These wires are part of the austenitic stainless steel family, which is known for its exceptional strength and resistance to corrosion.
The main difference between Stainless Steel 321 and 321H lies in their carbon content. Stainless Steel 321H has a higher carbon content than 321, which makes it suitable for high-temperature applications. The addition of carbon enhances the high-temperature strength of 321H, making it particularly useful in environments with elevated temperatures.
One of the key features of these wires is their resistance to intergranular corrosion, which makes them suitable for use in applications where exposure to corrosive elements is a concern. This property is attributed to the titanium stabilization in the alloy, which forms carbides, preventing the precipitation of chromium carbides at grain boundaries.
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Stainless Steel 321H welding wires are often employed in the manufacturing of various components such as wire mesh, springs, fasteners, and welding electrodes. Their versatility and robust mechanical properties make them suitable for a wide range of industries, including chemical processing, aerospace, pharmaceuticals, and power generation.
These SS 321 filler wires are known for their excellent weldability, which allows for ease of fabrication and installation in various applications. The combination of good formability and high corrosion resistance makes Stainless Steel 321 wires ideal for demanding environments.
In addition to their mechanical and corrosion-resistant properties, these wires exhibit superb oxidation resistance, making them suitable for applications involving exposure to high temperatures. This characteristic is particularly crucial in industries such as petrochemicals, where materials need to withstand extreme temperatures without compromising performance.
ASTM A580, A313, A555, A493 / ASME SA580, SA313, SA555, SA493, AMS 5514
ANSI/AWCI – 01 -1992 and ASTM E 2016-11 and RRW 360
Cut Lengths: 0.125" to 72"
No Limit on Spooled Lengths
0.0004" to 0.040"
10 microns to 1.0 mm
Other Sizes on Request
Polished bright, Smooth, Bare, Enamel, PTFE, Ceramic, Plated
Tempers range from dead soft annealed to ultra spring temper
Filler Wire, Flat Wire, Coil Wire, Electrode Wire, Welding Wire, Wire mesh, Knitted Wire Mesh, Wire Rope, Wire Bobbin, Mig Wire, Tig Wire, Spring Wire, Square Wire
Spool, Reel, Coil, Bobbin, Carrier Custom packaging provided from as low as 1lb to 200lb tapered plastics
| STANDARD | WERKSTOFF NR. | UNS | JIS | EN |
| SS 321 | 1.4541 | S32100 | SUS 321 | X6CrNiTi18-10 |
| SS 321H | 1.4878 | S32109 | SUS 321H | X12CrNiTi18-9 |
| Grade | C | Mn | Si | P | S | Cr | N | Ni | Ti |
| SS 321 | 0.08 max | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 17.00 – 19.00 | 0.10 max | 9.00 – 12.00 | 5(C+N) – 0.70 max |
| SS 321H | 0.04 – 0.10 | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 17.00 – 19.00 | 0.10 max | 9.00 – 12.00 | 4(C+N) – 0.70 max |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 8.0 g/cm3 | 1457 °C (2650 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
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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