Recommend Products
Name: Fujian Monel 400 Double End Stud Material: Monel 400 Standard: ASME B18.2.1 Size: 5/16 to 4 inch Length: 30 to 1000 mm Class: 12.9 Feature: Resistant to hydrofluoric acidQS Fastener: Monel 400 Double End Stud
Name: Inconel 625 Double End Stud Material: Inconel 625 Standard: ASME B18.2.1 Size: 5/16 to 4 inch Length: 30 to 1000 mm Class: 12.9 Feature: High Yield Strength, Durable Strength and Corrosion ResistanceQS Fastener: Inconel 625 Double End Stud
Name: Xiamen Inconel 600 High Strength Fastener Material: Inconel 600 Standard: ASME Size: 5/16 to 4 inch Length: 30 to 1000 mm Class: 12.9 Feature: High Yield Strength, Durable Strength and Corrosion ResistanceQS Fastener: Inconel 600 High Strength Fastener
Name: Inconel 600 Stud Bolt Putian Material: Inconel 600 Standard: ASME B18.2.1 Size: 5/16 to 4 inch Length: 30 to 1000 mm Class: 12.9 Feature: High Yield Strength, Durable Strength and Corrosion ResistanceQS Fastener: Inconel 600 Stud Bolt
Huaian Heat Resistant B7 Bolt
QS Fastener: Huaian Heat Resistant B7 Bolt
Product: Huaian Heat Resistant B7 Bolt
Dimension: 2 IN
Material: ASTM A193 Grade B7
Thread: 4-1/2 UNC
Surface Finish: Black
Standard: ASME B16.5
Dimension: 2 IN
Material: ASTM A193 Grade B7
Thread: 4-1/2 UNC
Surface Finish: Black
Standard: ASME B16.5
Quantity
The Huaian Heat Resistant B7 Bolt is a high-strength fastening solution manufactured from ASTM A193 Grade B7 chromium-molybdenum alloy steel. This material specification is the industry standard for bolting applications requiring exceptional performance in high-temperature and high-pressure service environments . The B7 grade is achieved through a precise quenched and tempered heat treatment process, developing the optimal combination of tensile strength, hardness, and toughness required for critical industrial applications .
Technical Specifications & Performance
With a 2-inch diameter and 4-1/2 UNC thread configuration, this bolt delivers robust clamping force and secure fastening for large-scale equipment assemblies. The black surface finish provides dual functionality – enhancing corrosion resistance while offering a professional appearance suitable for exposed applications. This bolt fully complies with ASME B16.5 standards, the recognized specification governing pipe flanges and flanged fittings, ensuring dimensional accuracy and interchangeability .
With a 2-inch diameter and 4-1/2 UNC thread configuration, this bolt delivers robust clamping force and secure fastening for large-scale equipment assemblies. The black surface finish provides dual functionality – enhancing corrosion resistance while offering a professional appearance suitable for exposed applications. This bolt fully complies with ASME B16.5 standards, the recognized specification governing pipe flanges and flanged fittings, ensuring dimensional accuracy and interchangeability .
For 2-inch diameter B7 bolts (within the 2-1/2"and under range), the mechanical properties meet minimum tensile strength of 125 ksi (860 MPa) and yield strength of 105 ksi (720 MPa), with hardness not exceeding 321 HBW or 35 HRC . The material delivers reliable service up to 450°C (840°F), making it suitable for continuous high-temperature operation .
Application Scenarios
These heat resistant B7 bolts are extensively specified in oil refineries, petrochemical plants, power generation facilities, and chemical processing industries . Primary applications include:
These heat resistant B7 bolts are extensively specified in oil refineries, petrochemical plants, power generation facilities, and chemical processing industries . Primary applications include:
- Flange connections for pressure vessels, valves, and piping systems operating under ASME B16.5 specifications
- High-pressure equipment requiring bolting that maintains preload under thermal cycling
- Heat exchangers and boiler connections where elevated temperatures are constant
- Offshore and onshore drilling equipment demanding superior corrosion resistance and strength
- High-pressure equipment requiring bolting that maintains preload under thermal cycling
- Heat exchangers and boiler connections where elevated temperatures are constant
- Offshore and onshore drilling equipment demanding superior corrosion resistance and strength
Quality Assurance
Each Heat Resistant B7 Bolt is manufactured with strict adherence to ASTM A193/A193M specifications, ensuring consistent quality and traceability. The combination of chromium-molybdenum alloy chemistry, proper heat treatment, and precision thread rolling ensures reliable performance even under extreme operating conditions . When paired with ASTM A194 Grade 2H heavy hex nuts, this bolting system provides a complete, code-compliant fastening solution for critical service applications .
Each Heat Resistant B7 Bolt is manufactured with strict adherence to ASTM A193/A193M specifications, ensuring consistent quality and traceability. The combination of chromium-molybdenum alloy chemistry, proper heat treatment, and precision thread rolling ensures reliable performance even under extreme operating conditions . When paired with ASTM A194 Grade 2H heavy hex nuts, this bolting system provides a complete, code-compliant fastening solution for critical service applications .
Choose Huaian Heat Resistant B7 Bolts for unparalleled strength, durability, and reliability in your most demanding bolting applications.
Send Message
