Duplex Steel: A Step Up from 316 in Strength and Corrosion Resistance
If you're familiar with 316 stainless steel fasteners, you know they're widely used across many industries. However, if you need something that combines enhanced durability and corrosion resistance without exceeding your budget, Duplex alloys could be the perfect solution. Duplex steel fasteners stand out due to their superior strength—approximately twice that of 316 stainless—and their exceptional corrosion resistance. This newsletter will compare Duplex 2205 and Super Duplex 2507 fasteners, highlighting scenarios where upgrading from 316 stainless makes sense.
Why Opt for Duplex Over 316 Stainless?
Duplex steel bolts are ideal when 316 fasteners hit their limits—whether it's mechanical strength or corrosion resistance. Both Duplex 2205 (S32205) and Super Duplex 2507 (S32750) boast around double the yield strength of 316 stainless. Furthermore, they outperform 316 in terms of corrosion resistance, with Super Duplex 2507 offering the highest level of protection among the two.
Zeron 100: The Next Level of Corrosion Resistance
Before transitioning to expensive nickel alloys, consider Zeron 100 fasteners (also called F55 or UNS S32760). This variant of Super Duplex 2507 provides even greater corrosion resistance, making it suitable for extreme environments.
Stock Availability
We maintain an inventory of common sizes for both Duplex 2205 and Super Duplex 2507 fasteners, available in standard inch, metric, and customized designs. If we don’t have your specific size in stock, we can usually produce it within 2-4 weeks. Whether you’re working on a critical project or need components quickly, our range ensures you get exactly what you need when you need it.
At Extreme Bolt, we understand the importance of selecting the right materials for your application. Duplex steels offer a balanced approach between cost and performance, making them a smart choice for applications where traditional 316 stainless falls short. Reach out to us today to explore how Duplex alloys can elevate your projects!
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