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The corrosion resistance of stainless steels removes the requirement for any additional protective coatings making them the ideal material for springs operating in a range of corrosive conditions, high temperatures and in locations where maintenance and replacement are difficult.
All BS Stainless spring wires are manufactured to a high and consistent quality including;
The spring properties of stainless spring wires from BS Stainless are obtained by precision cold drawing meaning the tensile strength of the spring wires are maintained at operating temperatures up to 250°C with stainless steel springs able to be used in reduced stress levels up to 450°C.
Grade 302 stainless is a general purpose stainless which is typically made up of 18% Chromium and 8% Nickel. 302 is the most commonly used stainless wire for springs due to the high corrosion resistance and good tensile properties it offers.
Grade 316 stainless is comparable to 302 in composition with a slightly higher Nickel content with an added 2-2.50% of Molybdenum offering a greater corrosion resistance over 302. The slight differences in chemistry mean that the tensile strength of 316 spring wires are approx. 15% lower than that of 302.
Grade 17/7 stainless contains 17% Chromium and 7% Nickel giving a corrosion resistance similar to that of 302 with added strength and heat resistance. Once the springs have been formed from the wire they are generally heat treated which has the effect of hardening the material giving the maximum tensile properties to the spring.
BS Stainless currently offer an ever increasing stock range of spring wire from 0.300mm to 4.06mm all to EN10270-3 specification. The wires are usually stocked in catch weight coils but other forms of packaging can be offered upon request. For orders taken from our extensive stock range next day delivery can be arranged upon request in the UK we also supply wire worldwide.
For more information call +44 (0) 1772 337555 or email email@example.com