In addition to our numerous high-quality spring manufacturing services, we at J & J Spring Enterprises are proud to offer quality wire forming services to all our clients. We create wire-formed components from a variety of wire types, materials and gauges, allowing us to create products in a huge range of shapes, sizes and configurations to meet your every need.
Within the wire forming world, the material used plays a huge role in the eventual use and quality of the component. Even two wire-formed items that are nearly identical will differ in major ways if they’re made from different materials. With this in mind, this two-part blog series will go over many of the most common materials that are used during the wire forming process.
Stainless Steel Grade 304
Many wire forming projects require corrosion resistance, and grade 304 stainless steel is a great product for this purpose. It’s an austenitic stainless steel alloy, meaning it has great corrosion resistance and is also very strong.
For this reason, grade 304 is often used for heavier loads that are exposed to mild corrosive materials. It can resist oxidation better than plain steel or iron in most cases, and can be used in processes up to 870 degrees Celsius – nearly 1,400 degrees before the alloy begins to melt.
Stainless Steel Grade 316
Another austenitic stainless steel that’s even more resistant to corrosion is grade 316 stainless steel, which also wards off chlorides and salts. It is a bit weaker than grade 304, and has a slightly lower maximum temperature use (roughly 800 Celsius), but its corrosion resistance is even higher.
For this reason, grade 316 is often used in cooking and naval situations. In situations where you might normally use grade 304 but the conditions are too caustic, or when chlorides are present, 316 will be chosen instead.
Stainless Steel Grade 434
A different stainless steel grade is 434, which is ferritic and has great resistance to pitting rather than corrosion. It has a good maximum temperature usage (815 degrees Celsius), and while it’s not as chemically resistant as the two previous grades we noted, it still has better corrosion resistance properties than plain steal. It also comes at a lower cost than the austenitic types we went over above.
Polyester TGIC Powder Coat
In many cases, wire forming manufacturing requires a specialized coating that protects the wire from either temperature or chemical exposure. One such coating is polyester triglycidyl isocyanurate (TGIC) powder coat, which is extremely hard and will not be marred or chipped by abrasion. Polyester TGIC powder coating also resists salt spray, meaning it’s often used in environments with chlorides present. This material does have a very low melting point of about 300 degrees Fahrenheit, however, so it cannot be used in high-temperature environments.