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Yuyao Nut Bolt
QS Fastener: Yuyao Nut Bolt
Name: Yuyao Nut Bolt
Length: 150mm
Application: Used in Construction and Reinforcement of Mining Tunnels
Material: ASTM A320 Gr.L7
Size: 2 Inch
Surface Proces: Zinc-Nickel
Standard: B18.31.2
Length: 150mm
Application: Used in Construction and Reinforcement of Mining Tunnels
Material: ASTM A320 Gr.L7
Size: 2 Inch
Surface Proces: Zinc-Nickel
Standard: B18.31.2
Quantity
Yuyao Nut Bolt: Engineered for Extreme Conditions
Yuyao, a prominent fasteners manufacturing hub in Zhejiang Province, has built a strong reputation for producing high-strength components for demanding industrial applications. The Yuyao Nut Bolt, manufactured to ASME B18.31.2 standards, represents this engineering expertise, offering a solution specifically designed for critical infrastructure projects where failure is not an option.
Yuyao, a prominent fasteners manufacturing hub in Zhejiang Province, has built a strong reputation for producing high-strength components for demanding industrial applications. The Yuyao Nut Bolt, manufactured to ASME B18.31.2 standards, represents this engineering expertise, offering a solution specifically designed for critical infrastructure projects where failure is not an option.
Material and Manufacturing Excellence
Manufactured from ASTM A320 Gr.L7 alloy steel, the Yuyao Nut Bolt is engineered for low-temperature service down to -101°C, with a tensile strength of 125 ksi and yield strength of 105 ksi. The 2-inch by 150mm specification is optimized for heavy-duty connections, while the zinc-nickel dual-coating (12-16% nickel content) delivers exceptional corrosion resistance. Independent salt spray testing confirms this coating provides over 1000 hours of protection against red rust, significantly outperforming conventional galvanized finishes.
Manufactured from ASTM A320 Gr.L7 alloy steel, the Yuyao Nut Bolt is engineered for low-temperature service down to -101°C, with a tensile strength of 125 ksi and yield strength of 105 ksi. The 2-inch by 150mm specification is optimized for heavy-duty connections, while the zinc-nickel dual-coating (12-16% nickel content) delivers exceptional corrosion resistance. Independent salt spray testing confirms this coating provides over 1000 hours of protection against red rust, significantly outperforming conventional galvanized finishes.
Applications and Industry Relevance
Mining and Tunnel Construction: The Yuyao Nut Bolt provides structural reinforcement for tunnel arches, rock bolting systems, and ground support in underground mines.
Mining and Tunnel Construction: The Yuyao Nut Bolt provides structural reinforcement for tunnel arches, rock bolting systems, and ground support in underground mines.
Cryogenic and Offshore Infrastructure: The L7 material maintains impact resistance at extreme temperatures, making it ideal for LNG facilities and subsea connections. Offshore platforms have demonstrated 4-5 times longer service life compared to standard galvanized fasteners.
Heavy Engineering: From pressure vessels to cross-sea bridges, these fasteners meet the rigorous demands of critical connections requiring long-term reliability.
The Yuyao Nut Bolt exemplifies the precision engineering and quality control that has made Yuyao a recognized name in the global fastener industry. Each batch undergoes verification through advanced testing, including XRF coating analysis and hydrogen embrittlement testing per ISO 9588, ensuring consistent performance in the most challenging environments.
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