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Putian Thread Rod
QS Fastener: Putian Thread Rod
Name: Putian Thread Rod
Material: Inconel X-750
Standard: NF, ANSI, DIN
Product Grade: A
Application: Very Widely Used
Size: M6 to M100
Length: 30 to 800 mm
Strength of Extension: 910 N/mm²
Feature: Good Corrosion Resistance and Oxidation Resistance
Material: Inconel X-750
Standard: NF, ANSI, DIN
Product Grade: A
Application: Very Widely Used
Size: M6 to M100
Length: 30 to 800 mm
Strength of Extension: 910 N/mm²
Feature: Good Corrosion Resistance and Oxidation Resistance
Quantity
The Putian Thread Rod, manufactured from Inconel X-750 (NF NC15TNbA), represents a premium solution for demanding fastening applications. This precipitation-hardenable nickel-chromium superalloy thread rod delivers exceptional mechanical strength and corrosion resistance across a broad spectrum of harsh environments. With a tensile strength reaching 910 N/mm², it meets NF, ANSI, and DIN standards, ensuring global compatibility and reliability.
Available in sizes from M6 to M100 and lengths ranging from 30 to 800 mm, the Putian Thread Rod is engineered for versatility without compromising performance. Its Grade A classification certifies the highest quality standards, making it suitable for critical applications where fastener failure is not an option .
Material Advantages of Inconel X-750
Inconel X-750 derives its superior properties from a carefully balanced chemistry: minimum 70% nickel, 14-17% chromium, 5-9% iron, with additions of titanium (2.25-2.75%), aluminum (0.40-1.00%), and niobium (0.70-1.20%) . This composition enables the alloy to perform reliably at temperatures up to 820°C for sustained strength and 980°C for oxidation resistance .
Inconel X-750 derives its superior properties from a carefully balanced chemistry: minimum 70% nickel, 14-17% chromium, 5-9% iron, with additions of titanium (2.25-2.75%), aluminum (0.40-1.00%), and niobium (0.70-1.20%) . This composition enables the alloy to perform reliably at temperatures up to 820°C for sustained strength and 980°C for oxidation resistance .
Oxidation Resistance: The high chromium content forms a dense, self-healing chromium oxide (Cr₂O₃) protective layer on the thread rod surface. In high-temperature air at 815°C, the oxidation rate of Inconel X-750 remains extremely low, significantly outperforming ordinary stainless steel and carbon steel fasteners .
Reductive Media Resistance: With nickel content exceeding 70%, the Putian Thread Rod effectively resists attack from hydrogen sulfide (H₂S), chlorides (Cl⁻), and acidic solutions. In oil and gas extraction environments, it demonstrates corrosion rates below 0.01 mm/year in 5% sodium chloride solutions .
Stress Corrosion Cracking (SCC) Resistance: Precipitation hardening treatment combined with high nickel content stabilizes the austenitic structure, dramatically improving SCC resistance. In chloride-containing high-temperature water environments, the threshold stress for SCC in Inconel X-750 far exceeds that of conventional stainless steel grades .
Applications Across Critical Industries
The Putian Thread Rod finds extensive use across multiple high-stakes industries:
- Aerospace: Gas turbine rotor blades, turbine wheels, bolts, thrust reversers, and hot-air ducting systems where temperatures and mechanical stresses are extreme
- Nuclear Engineering: Reactor components requiring long-term stability under high stress and corrosive media exposure
- Chemical Processing: Pressure vessels, heat treat fixtures, extrusion dies, and forming tools in aggressive chemical environments
- Oil and Gas Extraction: Downhole equipment resisting sour gas environments containing H₂S and chlorides
- High-Temperature Springs and Fasteners: Applications up to 540°C requiring excellent relaxation resistance
The Putian Thread Rod finds extensive use across multiple high-stakes industries:
- Aerospace: Gas turbine rotor blades, turbine wheels, bolts, thrust reversers, and hot-air ducting systems where temperatures and mechanical stresses are extreme
- Nuclear Engineering: Reactor components requiring long-term stability under high stress and corrosive media exposure
- Chemical Processing: Pressure vessels, heat treat fixtures, extrusion dies, and forming tools in aggressive chemical environments
- Oil and Gas Extraction: Downhole equipment resisting sour gas environments containing H₂S and chlorides
- High-Temperature Springs and Fasteners: Applications up to 540°C requiring excellent relaxation resistance
Putian's Fastener Manufacturing Industry
Putian has emerged as a significant hub for high-quality fastener manufacturing in China, with over 30 years of industry development. The region has established a complete industrial ecosystem encompassing raw material supply, production, testing certification, and supporting services . According to industry data, Putian-based manufacturers contribute substantially to China's fastener production capacity, with particular strength in high-performance alloy fasteners .
Putian has emerged as a significant hub for high-quality fastener manufacturing in China, with over 30 years of industry development. The region has established a complete industrial ecosystem encompassing raw material supply, production, testing certification, and supporting services . According to industry data, Putian-based manufacturers contribute substantially to China's fastener production capacity, with particular strength in high-performance alloy fasteners .
Local manufacturers in Putian have invested heavily in advanced automation and quality control systems. Many companies in the region maintain rigorous testing protocols and have achieved international certifications including ISO 9001:2015, DNV, and GL approvals . The Putian Thread Rod exemplifies the region's capability to produce fasteners meeting the most demanding international standards, positioning Putian as a reliable source for critical industrial components in global supply chains .
The Putian Thread Rod combines the exceptional properties of Inconel X-750 with manufacturing excellence from one of China's most established fastener production regions, delivering a product trusted by engineers worldwide for mission-critical applications.
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