A essential component utilised in several mechanical and industrial applications is a soft iron plug gasket. In a plug or fitting connection, it is often designed to establish a dependable and efficient seal between two mating surfaces. This gasket, which is made of soft iron, has excellent qualities that make it the perfect fit for particular applications.
The exceptional compressibility of soft iron plug gaskets enables them to adapt to inconsistencies and flaws on the mating surfaces. By ensuring a tight and leak-free seal, this feature stops fluids or gases from escaping under pressure. The malleability of the soft iron substance makes it simple to install and remove without harming the mating surfaces.
Furthermore, soft iron plug gaskets are appropriate for difficult situations due to their great temperature and pressure resistance. They can endure very high temperatures and keep performing as seals even when there are large pressure differences.
Due to their superior sealing properties, soft iron plug gaskets are commonly used in industries such as oil and gas, petrochemical, automotive, and plumbing. They find application in various equipment, including pipelines, valves, pumps, engines, and hydraulic systems.
| Material | HB Hardness | Temperature Limitations | Identification |
| Soft Iron | 90 | -60 to +400 °C | D |
| Low carbon steel | 120 | -40 to +500°C | S |
| 4%-6% Cr ½% Mo:F5 | 130 | -125 to +500°C | F5 |
| Stainless steel 304/304L | 160 | -250 to +650°C | S304 or 304L |
| Stainless steel 316/316L | 160 | -196 to +800°C | S316 or 316L |
| Stainless steel 321 | 160 | -250 to +870°C | S321 |
| Stainless steel 347 | 160 | -250 to +870°C | S347 |
| Stainless steel 410 | 170 | -20 to +500°C | S410 |
| Inconel 625 | – | 1000°C | 625 |
| Incoloy 825 | – | 1000°C | 825 |
| Hastelloy C-276 | – | 1000°C | C-276 |
| Duplex | – | 800°C | S31803 |
| Titanium | – | 540°C | TI |
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