ASTM A194 Grade 8T bolts, are fasteners manufactured from stainless steel with high-temperature stabilization. Grade 8T, specifically 425°C to 815°C It is designed to prevent “intergranular corrosion” at operating temperatures between them. Its contents Titanium Its contribution prevents carbon from combining with chromium at high temperatures, thereby preserving the material's corrosion resistance. It is ideal for areas with intense thermal cycles, such as petrochemical plants, exhaust systems, and power plants.
| Feature | |
| Standard | ASME |
| Material | Stainless Steel |
| Material Quality | ASTM A 194 Grade 8T |
| Corrosion Resistance | High – Resistant to acidic and chloride-containing environments |
| Tooth Type | Metric Coarse Thread, Metric Fine Thread (optional) |
| Measurement Range | From M10 to M64, 1/2″-3″ |
| Production Method | Hot Forging, Machining |
| Thread Direction | Right-Hand Thread (standard) / Left-Hand Thread (upon request) |
- Piping systems operating at high temperatures
- Petrochemical and refinery plants
- Thermal power plants and energy production equipment
- Marine applications operating in chloride-containing environments
- Process industry and reactor systems
- Connections in sulfuric and phosphoric acid 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 8T, These are hexagonal nuts made of titanium-stabilized stainless steel. Unlike standard stainless steels, they resist deformation of their crystal structure at high temperatures.
Grade 8M is made of molybdenum-alloyed steel and is primarily focused on acidic environments such as chlorinated/seawater. Grade 8T does not contain molybdenum; the focus is not on seawater corrosion, high operating temperature and to prevent any deterioration that may occur at these temperatures.
Especially in environments with high temperatures and aggressive chemicals, for long-lasting connections Grade 8T is preferred. It stands out from other stainless steel grades with both its thermal stability and superior corrosion resistance.
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