ASTM A193 Grade B7, an American standard that defines high-strength and heat-resistant fasteners. Specifically pressure vessels, flanged connections, piping systems and petrochemical plants is commonly used in heavy-duty applications.
Grade B7, It is a standard material quality preferred in applications requiring thermal resistance and mechanical durability. It is commonly used in... ASTM A194 Grade 2H nuts and ASTM F436 used with different types of stamps.
| Feature | |
| Standard | ASME |
| Material | Alloy Steel |
| Type | Hex Head Bolt |
| Quality | ASTM A193 Grade B7 |
| Coating | Electrogalvanized (E.Zn.), Hot-Dip Galvanized (T.Zn.), Nickel, Black Oxide, Geomet, PTFE |
| Tooth Type | Metric (Coarse/Fine) – UNC / UNF |
| Measurement Range | M10 to M64, 1/2″-2 1/2″ |
| Production Method | Hot forging or machining |
| Thread Direction | Right-Hand Thread (standard) / Left-Hand Thread (upon request) |
- Oil and natural gas facilities
- Refineries and power plants
- Flange connections
- Pressure vessels and boilers
- Industrial piping systems
- Heavy steel construction assemblies
- 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
It is ideal for environments exposed to high temperatures, high pressure, and heavy mechanical loads. It is commonly used in chemical and petrochemical plants.
Generally ASTM A194 Grade 2H used with nuts.
Yes. In areas requiring high corrosion resistance. ASTM A193 Grade B8, B8M Stainless steel alternatives may be preferred.
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