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
Quanzhou ASTM A320 Stud Bolt
Size: 1 Inch.
Application: Low Temperature Piping
Material for Stud Bolt: ASTM A320 B8
Thread: 8 UNC
Total Length: 110 mm
Standard for Bolt: ASME B18.31.2
Our ASTM A320 Stud Bolt is specifically engineered for low-temperature piping applications where standard fasteners would fail due to embrittlement. Manufactured from ASTM A320 Grade B8 material, this stud bolt delivers exceptional tensile strength and impact resistance, maintaining its mechanical properties even when exposed to cryogenic conditions down to -196°C (-320°F), as required by the ASME Boiler and Pressure Vessel Code (Section VIII, Div. 1).
Precision Dimensions and Threading
This 1-inch stud bolt features a total length of 110 mm, with an 8 UNC thread configuration. The Unified Coarse thread series is deliberately chosen for low-temperature assemblies because it offers deeper thread engagement and greater resistance to thread galling during thermal cycling. The 110 mm overall length provides adequate take-out for flange bolting applications, allowing for proper nut and washer stack-up per ASME B18.31.2. Each bolt is manufactured to tight dimensional tolerances, ensuring a consistent fit in high-pressure flanges and valve connections.
Superior Material Characteristics – ASTM A320 B8
The ASTM A320 B8 material is an austenitic stainless steel that is solution-annealed to stabilize its microstructure. Unlike carbon steel bolts (ASTM A193), which become brittle at low temperatures, the B8 grade retains its ductility and toughness. This ensures that our ASTM A320 stud bolt resists brittle fracture, stress corrosion cracking, and hydrogen embrittlement—common failure modes in refrigeration, LNG (Liquefied Natural Gas), and petrochemical cryogenic services.
Performance and Application
This 1-inch stud bolt is ideal for low-temperature piping flanges, pressure vessels, heat exchangers, and pump connections. It is designed to work seamlessly with ASTM A194 Grade 8 nuts, creating a complete bolted joint system that meets the latest code requirements. The 8 UNC thread not only provides excellent grip and ease of installation but also allows for accurate torque application during bolting procedures, ensuring leak-free flange connections.
Quality Assurance and Compliance
Every ASTM A320 stud bolt is subjected to rigorous quality control, including dimensional verification, tensile testing, and hardness checks. We adhere strictly to ASME B18.31.2 for threaded fastener dimensional standards. With our Quanzhou ASTM A320 Stud Bolt, you gain the confidence of a fastener that combines metallurgical integrity, precise machining, and proven performance in extreme cold environments.
Conclusion
When reliability cannot be compromised, choose our ASTM A320 Stud Bolt for your low-temperature piping needs. It delivers the durability, resistance, and precision required for the most demanding industrial applications. Contact us today for custom lengths, special threading, or material certifications.
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