ASTM A194 Grade 8 manufactured in accordance with the standard GR 8 nuts, offers superior corrosion resistance against high temperatures, abrasive environments, and chemical effects. Typically manufactured from AISI 304 stainless steel (or equivalent), these nuts are preferred in demanding industrial environments such as process piping, petrochemical plants, and offshore platforms. Production is available in metric and inch sizes.
| Feature | |
| Standard | ASME |
| Material | Stainless Steel |
| Material Quality | ASTM A 194 Grade 8 |
| Coating | Uncoated (natural shine), Nickel Plating (Depending on Request) |
| Tooth Type | Metric Coarse Thread, Metric Fine Thread, UNC / UNF |
| Measurement Range | From M10 to M100, |
| Production Method | Cold Forging, Hot Forging, Machining |
| Thread Direction | Right-Hand Thread (standard) / Left-Hand Thread (upon request) |
- Chemical and petrochemical plants
- Refinery and piping systems
- Offshore platforms and the maritime industry
- Nuclear and thermal power plants
- Equipment requiring high corrosion resistance
- Acidic, humid, high-temperature process environments
- ISO 9001:2015 Quality Management System
- ISO 14001:2015 Environmental Management System
- ISO 45001:2018 Occupational Health and Safety Management System
- EU Declaration of Conformity (PED) certificate (Compliance with the Pressure Equipment Directive)
- Our production processes, DIN, EN, ISO, and ASTM is fully compliant with the standards
- Upon request EN 10204 3.1 certificate is provided
Grade 8 is a class of nuts manufactured from stainless steel in accordance with the ASTM A194 standard, offering high corrosion resistance and mechanical strength. It provides long-lasting and secure connections in chemical and marine environments.
It is preferred in systems with corrosive environments such as high humidity, salt water, chemical vapors, and high temperatures. It is generally used with stainless steel bolts and studs.
Grade 8 nuts are typically manufactured from AISI 304 stainless steel. Material selection should be based on the corrosion level of the environment. In more aggressive environments, A194 Gr 8M (AISI 316) is preferred.
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