We bring our superior spring concepts to life with high-performing, market-leading materials that are designed to stand the test of time. Melling Performance Springs design and manufacture one-of-a-kind springs for specialist applications, and we do not underestimate the role that quality materials have in this meticulous process. We source exceptional and innovative solutions to fabricate bespoke springs that offer extreme durability, resilience, and longevity.
Silicon chrome alloys have a high tensile strength and are suitable for dynamic applications such as engine valve springs and fuel injector springs. They have a greater resistance to fatigue and relaxation than carbon steels – especially at elevated temperatures upwards of 200 degrees C. The silicon chrome alloys we choose are typically made from “super-clean” raw rod to ensure minimal impurities and non-metallic inclusions. They are 100% surface tested to give a high-quality finish and superior performance.
Carbon steel wires are commonly used across many of our bespoke spring fabrications, with a tensile strength that is achieved by a combination of heat treatment and wire drawing. Hard drawn carbon steel wire is the preferred and often most cost-effective choice for lower-stress applications. Cold drawn carbon steel music wires tend to be used in high-stress scenarios, however the wire sizes are typically smaller. Patented cold drawn steels have an operating temperature up to 150 degrees C and are susceptible to corrosion if not operating in a dry atmosphere.
Stainless steel wires are generally used for their corrosion resistance and heat resistance. There are three main types of stainless steel that we work with:
Austenitic stainless steels are most commonly used where resistance to corrosion and/or relaxation is required. They offer working temperatures up to 300 degrees C.
Martensitic stainless steels are higher strength, which is obtained through hardening and tempering. They are strongly magnetic, have poor electrical conductivity, and offer some degree of resistance to corrosion, with working temperatures up to 300 degrees C.
Precipitation hardening stainless steels are age-hardened to increase their tensile strength. Their fatigue resistance is excellent but this stainless steel can be prone to occasional stress cracking. They offer working temperatures up to 320 degrees C.
Copper alloy springs – including brass, phosphor bronze and beryllium copper – are resistant to atmospheric corrosion, have elevated thermal and electrical conductivity, and are non-magnetic.
Nickel alloy springs are highly resistant to corrosion and extreme temperatures. The maximum operating temperature ranges from 350 degrees C to in excess of 500 degrees C.
Springs made of titanium alloys are light and feature great tensile strength, but they may be at risk of fatigue cracking in high-dynamic applications.
Download our international recognised material equivalent sheet. Melling Performance Springs purchase material from the best supplier around the world and hold many international wire grades.
We’re very happy with the lead time, pricing, and customer service!
I took, at least, 100 springs and tested them: all of them are in Porsche spec. ( +/- 25 Kp)! Better than you promised! Great! Thank you!
I am very pleased with the product and hope to repeat the order in the future. Thank you for your excellent service.
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