Precision-Engineered Sanicro® 35 Hex Nuts

Sanicro® 35: Information, Composition & Properties for Hex Nuts

Sanicro® 35 is a high-performance super-austenitic alloy designed to bridge the gap between high-alloy stainless steels and expensive nickel alloys. Characterized by its exceptional structural stability and high mechanical strength, this grade offers a versatile solution for hex nuts used in the most demanding industrial environments. By combining the best features of both stainless steel and nickel-based alloys, Sanicro® 35 hex nuts provide a cost-effective alternative to materials like Alloy 625, ensuring long-term reliability without the price volatility associated with high-nickel content.

Composition:

The superior performance of Sanicro® 35 is derived from its precise chemical composition, featuring 27% chromium, 35% nickel, and 6.5% molybdenum. The high chromium and molybdenum levels, further enhanced by 0.3% nitrogen, result in a Pitting Resistance Equivalent Number (PREN) of at least 52. This chemical balance is specifically engineered to provide maximum resistance to localized corrosion while maintaining high yield strength and excellent ductility, making it an ideal material for critical fastening components.

Properties:

• Outstanding Corrosion Resistance: Sanicro® 35 exhibits exceptional resistance to pitting and crevice corrosion in chloride-rich environments, such as seawater, and remains highly resistant to stress corrosion cracking (SCC) and hydrogen embrittlement.
• Superior Acid and Alkali Performance: It provides high resistance to general corrosion in a wide range of aggressive media, including sulfuric, nitric, and hydrochloric acids, as well as caustic solutions.
• High Mechanical Strength: With a typical yield strength of 425 MPa, Sanicro® 35 hex nuts offer significantly higher load-bearing capabilities than standard austenitic grades, ensuring structural integrity under high stress.
• Temperature Versatility: The alloy maintains its excellent mechanical and chemical properties across a broad temperature spectrum, from cryogenic conditions up to 550°C (1022°F).

At West Special Fasteners, we take pride in every Sanicro® 35 Hex Nut we produce, no matter the application.

99% on-time delivery

At West Special Fasteners, we deliver precision-engineered fasteners with a proven 99% on-time delivery record, ensuring your projects stay on schedule. With lead times as short as 4 weeks for full-service orders, we provide unmatched reliability for industries where timing is critical.

• Minimise delays – Receive your special fasteners exactly when needed, helping you avoid costly project interruptions.
• Support critical operations – Our dependable delivery is essential for sectors like defence, offshore, and renewables, where timing is non-negotiable.
• Boost project efficiency – Reliable deliveries streamline your workflow, allowing you to focus on execution without supply chain concerns.
• Maintain your reputation – Trust in our punctuality to ensure your commitments to your clients are met, every time.
• Transparent communication – Realistic timelines and proactive updates at every stage.
• Efficient production – Our advanced facilities and streamlined processes enable us to deliver on time, even for complex and bespoke projects.

Our ability to always deliver on time sets us apart in the fastener industry. While with many competitors you can face frequent delays, we ensure your orders are delivered with precision and professionalism – backed by our fully traceable production process and industry-leading expertise.