Why to use Duplex & Super Duplex Fasteners?

Duplex grades are alloys that contain both austenite and ferrite in an almost equivalent proportion. Duplex Fasteners are preferred in highly demanding applications because they have higher mechanical strength along with excellent to good corrosion resistance properties. They exhibit good mechanical properties at room temperature, even when the shank of the screws is thinner. The minimum yield strength of Duplex hex bolts is almost two times that of a conventional austenitic alloy.

The duplex stainless steel 2205 hex bolts are renowned for their exceptional corrosion resistance and mechanical strength, crafted with precision from premium-grade materials. These bolts are specifically engineered for applications demanding robust performance in corrosive environments. The advanced manufacturing techniques, including cold heading and hot forging, enable a comprehensive size range. Fasteners made from duplex alloys have good resistance to stress corrosion cracking.

Components made from super duplex alloys are specifically designed to fulfill the demands of oil and gas industry. The deposition of hydrogen and sulfur on traditional stainless steel pipes would cause them to break down by stress-related corrosion cracking. Since the pitting resistance equivalent number of super duplex fasteners is higher, they deliver excellent performance in the oil and gas sector.

Super duplex bolts are fasteners whose shank consists of threads emerging from below their head. They have higher mechanical strength and better creep resistance even at higher temperatures. Super Duplex Fastener is highly alloyed and the mechanical and corrosion resistance properties of these alloys range from excellent to good. They are better at resisting corrosion compared to other alloys and work well in stronger acid and base environments.