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
A193 Grade B7 studs
QS Fastener: A193 Grade B7 studs
Name: A193 Grade B7 studs
Material: ASTM A193 B7
Length: 130mm
Application: Bolts and Nuts are Crucial in the Construction and Maintenance of Roads, Railways, Airports, and Utilities
Finish: Zinc Plated White-Blue
Size: 3/4 Inch
Thread: 10 UNC
Price: EXW USD 0.1/ pcs
MOQ: 100 pcs
Customization: yes
Delivery time: 7-30 Day
Material: ASTM A193 B7
Length: 130mm
Application: Bolts and Nuts are Crucial in the Construction and Maintenance of Roads, Railways, Airports, and Utilities
Finish: Zinc Plated White-Blue
Size: 3/4 Inch
Thread: 10 UNC
Price: EXW USD 0.1/ pcs
MOQ: 100 pcs
Customization: yes
Delivery time: 7-30 Day
Quantity
ASTM A193 Grade B7 studs are the industry standard for high-strength bolting in critical infrastructure projects. These studs deliver reliable performance across demanding applications including road construction, railway track maintenance, airport runway installations, and utility infrastructure.
Manufactured from chromium-molybdenum alloy steel and processed through quenched and tempered heat treatment, B7 studs achieve a minimum tensile strength of 125 ksi for diameters up to 2-1/2 inches. This combination of strength and toughness makes them the preferred choice for flange connections, pressure vessels, and structural assemblies where vibration resistance and load-bearing capacity are essential.
Specifications:
- Material: ASTM A193 Grade B7 (Chromium-Molybdenum Alloy Steel)
- Length: 130mm
- Diameter: 3/4 Inch
- Thread: 10 UNC (Unified Coarse)
- Finish: Zinc Plated (White-Blue)
- Compatible Nuts: ASTM A194 Grade 2H Heavy Hex Nuts
- Material: ASTM A193 Grade B7 (Chromium-Molybdenum Alloy Steel)
- Length: 130mm
- Diameter: 3/4 Inch
- Thread: 10 UNC (Unified Coarse)
- Finish: Zinc Plated (White-Blue)
- Compatible Nuts: ASTM A194 Grade 2H Heavy Hex Nuts
Application Areas:
These studs are engineered for use in:
- Roadway and bridge structural connections
- Railway track fastening systems
- Airport runway and taxiway infrastructure
- Utility and power plant bolting assemblies
- Flanged piping and pressure vessel applications
These studs are engineered for use in:
- Roadway and bridge structural connections
- Railway track fastening systems
- Airport runway and taxiway infrastructure
- Utility and power plant bolting assemblies
- Flanged piping and pressure vessel applications
The zinc plated white-blue finish provides effective corrosion resistance while maintaining the stud's mechanical properties. For critical high-pressure applications, proper torque values should be determined based on lubrication conditions and joint design requirements.
FAQs
1. What is ASTM A193 Grade B7?
A193 B7 is a specification for high-strength chromium-molybdenum alloy steel bolting, heat-treated by quenching and tempering, with minimum 125 ksi tensile strength for diameters up to 2.5 inches.
2. What nuts pair with B7 studs?
ASTM A194 Grade 2H heavy hex nuts are the standard companion. They are designed to match the strength of B7 studs and provide proper thread engagement.
ASTM A194 Grade 2H heavy hex nuts are the standard companion. They are designed to match the strength of B7 studs and provide proper thread engagement.
3. Can B7 studs be used in low-temperature applications?
B7 is optimized for elevated temperature service up to 450°C. For cryogenic or low-temperature applications, ASTM A320 L7 or B7M grades are recommended.
B7 is optimized for elevated temperature service up to 450°C. For cryogenic or low-temperature applications, ASTM A320 L7 or B7M grades are recommended.
4. Does zinc plating affect B7 stud performance?
Zinc plating provides corrosion resistance but requires attention to hydrogen embrittlement risks. Proper plating processes and baking treatments should be specified for high-strength applications.
Zinc plating provides corrosion resistance but requires attention to hydrogen embrittlement risks. Proper plating processes and baking treatments should be specified for high-strength applications.
5. What torque should be applied to 3/4"B7 studs?
For dry assembly, approximately 110 ft-lbs; for lubricated assembly, approximately 80 ft-lbs. Always consult the design engineer for application-specific values.
For dry assembly, approximately 110 ft-lbs; for lubricated assembly, approximately 80 ft-lbs. Always consult the design engineer for application-specific values.
Send Message
