Made of steel alloyed with at least 12% chromium and often nickel, stainless steel is a strong metal that fares well in a wide variety of environments and conditions. Read More…
Leading Manufacturers
R & L Spring Company
Lake Geneva, WI | 262-249-7854R&L Spring Company manufactures custom spring and wire formed components for industries such as powersports, automotive, medical devices, and general industrial. Products include compression, extension, and torsion springs, as well as rings, wire forms, fourslide components, and long coils. Wire diameters available from .001" to .750" in both shaped wires and flat stocks. Their experienced team is able to meet the most demanding parts specifications. IATF16949 and ISO9001 certified.
Stanley Spring and Stamping Corporation
Chicago, IL | 773-777-2600At Stanley Spring and Stamping Corporation we have experience in raw materials and metal fabrication. We are a Midwest manufacturer who is part of the American business community. Our coil springs are made from the highest quality material available. Our production ranges from a few prototypes to over fifty million parts. We provide the best quality in the industry.
Tollman Spring Company, Inc.
Bristol, CT | 860-583-1326Founded in 1945, Tollman’s expert engineering staff stands ready to work directly with your designers to meet customized spring design and cycle life requirements and achieve maximum performance of your products. In addition to helping you with the pre-production design of new parts, our engineering and design experts can help improve the performance of your existing products. Tollman’s up-front involvement in the design of customer products saves time and money.
Plymouth Spring Company, Inc.
Bristol, CT | 860-584-0594Plymouth Spring Company, founded in 1959, has continued to expand and grow through new technologies and attention to details to serve an ever larger customer base. Plymouth Spring completed the acquisition of the assets of the Bristol Spring Manufacturing Company and has integrated much of Bristol Spring’s highly skilled workforce, equipment and manufacturing capabilities of compression springs, torsion springs & extension springs into our existing facility.
Gilbert Spring Corporation
Chicago, IL | 800-860-6031Established in 1964 and now in our third generation of ownership, Gilbert Spring Corporation has remained dedicated to not only providing the utmost quality in our products but also offering excellent customer service and on-time delivery with short lead times. Our Secondary department can produce complex Springs and Wire/Strip Forms not suited for machine operations, and our on-site tooling department gives us the ability to quickly adapt to customer’s needs.
Ajax Wire Specialty Company, Inc.
Hicksville, NY | 855-966-2529At Ajax Wire, in addition to manufacturing a growing list of stock springs, we can produce springs to your specifications, samples or drawings in short or long runs. We also offer several assortments that come with cabinets and display boards. Compression springs, extension springs and torsion springs are examples of our products. Springs have been our only business for more than 85 years, Call us today!
Stainless Steel Springs - All-Rite Spring CompanySprings made of stainless steel are preferred in outdoor and water applications as well as in environments where sanitation is necessary. The aerospace, semi-conductor, heat exchanging, medical, food and beverage processing, marine, boat manufacturing, industrial manufacturing and oil industries all use stainless steel springs as components within machinery, equipment and vehicles. They always have a shiny, grey finish and can be fabricated into many different sizes and types of spring, including coil, compression, extension and torsion springs.
Small spring sizes generally have higher tensile strengths, which are similar to hard drawn carbon steel. They are made from cold drawn flat or round wire that have varying degrees of nickel. Springs that exhibit lower nickel content have better formability and flexibility but lower strength than those that have high amounts.
Like all stainless steel parts and products, heat treatment will not strengthen the metal. Instead, cold working, like cold extrusion to fabricate wire, strengthens the steel's properties. After cold working, a low temperature heat treatment improves the spring properties, some of which are lost during cold working.
Most stainless steel springs are fabricated from austenitic stainless steel, which is unaffected by heat treatment. Grades 302 (18% chromium, 9% nickel), 304 (18% chromium, 8% nickel) and 316 (17% chromium, 12% nickel, 2.5% molybdenum) are used to manufacture springs, all of which offer different properties. They are able to withstand temperatures up to 650ºF, a property that no other spring metal exhibits.
These grades have a small degree of magnetism, a coefficient of thermal expansion 15% less than carbon steel and thermal conductivity only 30% of standard steel. While stainless springs are not likely to oxidize and rust, they sometimes become discolored when the spring wire is stress relieved.
This yellow-brown color only affects the spring's aesthetics, not the function, life span or mechanical properties. In order to resume and maintain the spring's appearance, passivation, which is a coating method, is applied. It improves tarnish resistance as well as removes any discoloration.