A spring has to hold its load without relaxing and without corroding, often in chloride, sour or high-temperature service where a standard spring steel would fail.
We supply the bar and wire that springs are made from, across the austenitic, nickel and precipitation-hardening ranges, from stock in the UK and USA.
Which alloy for a corrosion-resistant spring?
Fermonic® 50 work-hardens to high strength and resists chloride pitting better than standard austenitics, staying non-magnetic even after severe cold work.
Which alloy for sour-service or high-temperature springs?
Age-hardening nickel Alloy 718 and Alloy 725 - high strength retained at temperature, to NACE MR0175 and ISO 15156 where required.
Which alloy for a general high-strength spring?
17-4 PH, tailored across its heat-treatment conditions for the strength and toughness the application needs.
Which alloy for a marine spring?
Alloy K-500 - nickel-copper strength with seawater corrosion resistance and low magnetic permeability.
Also known as
Fermonic® 50 is our designation for UNS S20910, known elsewhere as Nitronic® 50, a trademark of Cleveland-Cliffs (formerly AK Steel). Alloy 718 and Alloy 725 are equivalent to UNS N07718 and N07725, sold elsewhere as Inconel® 718 and Inconel 725, trademarks of Special Metals. 17-4 PH is the precipitation-hardening stainless steel UNS S17400 (AISI 630). Alloy K-500 is equivalent to UNS N05500, sold elsewhere as Monel® K-500, a trademark of Special Metals.
Typical spring work
Compression, extension and disc springs, spring wire and bar stock, energised seal springs.
Why buy from us
- Bar and wire stock across the austenitic, nickel and precipitation-hardening range.
- Grade selection and international equivalence support.
We supply the bar and wire that springs are made from; spring manufacturers wind, form and heat treat it to finished springs.