ASTM A453 Grade 660 High Temperature Fasteners - Austenitic CTE Match
Usage scenarios:
- Joining austenitic stainless components in furnaces, ovens and industrial heat‑treatment equipment to avoid distortion and maintain clamp load during thermal cycling.
- High‑temperature piping, heat exchangers and boiler assemblies in power and petrochemical plants where matched expansion reduces stress at bolted joints.
- Exhaust systems, turbine and compressor housings, or other assemblies combining austenitic parts that require stable joints and resistance to oxidation at elevated temperatures.
Product advantages
ASTM A453 Grade 660 high-temperature fasteners are precision-engineered from an austenitic nickel-based alloy to provide a close coefficient-of-thermal-expansion (CTE) match with mating components, ensuring dimensional stability and reduced thermal stress in extreme environments. Built by seasoned metallurgists under rigorous quality-control and heat-treatment protocols, the product reflects a brand heritage in high-performance alloy fabrication with full ASTM/ASME compliance and traceability for aerospace, power generation, and petrochemical uses. Key features and advantages include superior oxidation and creep resistance at elevated temperatures, excellent corrosion resistance, high mechanical strength with tight tolerances, customizable sizes and coatings, and long service life that minimizes maintenance and downtime.
Team strength
Our multidisciplinary team combines metallurgists, design engineers, and precision manufacturing specialists to deliver ASTM A453 Grade 660 high‑temperature fasteners with an austenitic coefficient‑of‑thermal‑expansion (CTE) match. We emphasize rigorous quality control—material traceability, heat‑treatment cycles, dimensional inspection, and mechanical testing—to ensure performance in extreme environments. Value-driven services include application engineering, rapid prototyping, custom sizes, and certification support to meet client specifications. With scalable production, on‑time delivery, and proactive technical support, the team minimizes risk, optimizes installation compatibility, and extends service life, providing dependable, compliant fastener solutions for critical high‑temperature industrial applications. We partner closely with customers to accelerate qualification and reduce downtime.
Why choose us
Our engineering and production team combines deep metallurgy, precision machining, and quality assurance to deliver ASTM A453 Grade 660 high-temperature fasteners with exacting austenitic CTE match. Core strengths include metallurgical expertise, in-house heat treatment, CNC manufacturing, and rigorous NDT and mechanical testing to ensure performance in extreme thermal cycles. Value to customers comes from reliable material traceability, custom sizing, rapid prototyping, and engineering support for application-specific CTE pairing. Certifications, batch-level documentation, and a responsive supply chain reduce risk and downtime. Collaborative design review and post-sale service ensure fasteners meet long-term stability, safety, and performance expectations in demanding environments. Globally proven.
xarella.huang@jm-fastener.comSince our establishment in 2006, JM has been adhering to the mission of creating maximum value for customers by providing differentiated services, and making a positive contribution to the society.