High Carbon Spring Steel Coil
Steel springs can be bent, twisted, and extended without deforming. This elasticity, known as yield strength, allows them to absorb and release mechanical energy without changing shape.
High carbon spring steel offers tensile strength and fatigue resistance, making it ideal for clips and fasteners. During the COVID-19 pandemic, one Three D Metals customer used small spring steel clips to hold down backup sensors in medical machines.
Tensile Strength
The tensile strength of a metal determines how much stress it can withstand before it permanently deforms. High carbon spring steel is used in a number of different applications where a part must be able to reliably absorb and re-exert force. You’ll find it in many different car parts, including the spring diaphragms in the car seat belt system and the retractor springs found in door hinges. The high tensile strength of spring steel also makes it ideal for use in tools such as wrenches and scissors.
The type of steel you choose will depend on the application and your budget. Low and medium carbon steels are less expensive but have lower tensile strengths than high-carbon spring steel. However, high-carbon spring steel is very strong, and it can be through-hardened, enabling it to handle higher stress levels than mild-steel grades.
Mead Metals stocks a range of spring steel coil and wire rod solutions, including bright basic steel, oil tempered steel, and galvanized steel wire, to meet the needs of a wide variety of applications. We’ll work with you to select the perfect solution for your specific project, and we can provide free CADs and samples for most of our solutions. Contact us today to get started.
Corrosion Resistance
Corrosion is one of the biggest threats to spring performance and longevity. High carbon spring steel coil It can eat through metals, weaken them and cause them to rust prematurely. The good news is that corrosion can be minimized by using the right coatings and treatments. The best way to protect your steel springs is to make sure they are properly sealed in their housing and that any water or chemicals that seep into the housing can easily be drained or evaporated, rather than sitting and corroding the springs.
High carbon spring steels can be made resistant to corrosion by adding alloying elements such as chromium and nickel. Alloys also improve corrosion resistance by adding additional tensile strength and elongation to the spring. Stainless steels are more expensive but can offer better corrosion resistance than carbon steel springs, especially at higher temperatures.
Some of the best grades of stainless steel for springs are Type 302, 304 and 316. These alloys are more corrosion-resistant than carbon steel, and they also withstand greater pressures without sacrificing their tensile strength or elongation to break. Chromium silicon alloys like 17-7 are even more corrosion-resistant than these stainless steels, and they can be heat-treated to higher hardnesses while maintaining excellent tensile and fatigue properties. The corrosion resistance of these alloys is further enhanced by atmosphere-controlled heat treatment and by coating them with tin, nickel, copper or chromium to prevent oxidation.
Durability
The durability of spring steels is largely dependent on their ability to absorb and retain force. They are also good at withstanding cyclical loads that would fatigue other alloys.
These properties make them ideal for creating clips and fasteners that hold things together. You can find a Hardened & Tempered Steel Strip Supplier spring steel clip in your car’s backup sensor or the retractor springs used in seat belt systems, for example.
For these types of applications, the highest quality spring steels are used as they can be processed without losing their strength. They can be hammered, rolled, drawn, and formed into any shape you need without sacrificing their tensile strength or durability.
Using high-quality spring steels can help extend the life of your equipment and reduce maintenance costs. They can resist corrosion more reliably than other materials and are capable of being plated to protect against corrosive environments. Choosing a material that has low magnetic permeability will minimize the effects of magnetic attraction on your system.
A great general purpose spring steel is AISI 5160H which is hot rolled and can be heat treated to a hardness that meets the requirements of your dynamic application. This grade is available from the mill in bar form or as a coil and can be cut to long lengths to create spring free lengths up to 80”. This type of steel has good fatigue strength properties even when subjected to vibration or oscillation.
Heat Treatment
Spring steel is characterized by particular flexibility, good plasticity features and comparably high hardness as well as remarkable fracture toughness. These are ideal preconditions for producing springs which are subjected to a wide range of strains and stresses.
However, the performance of a spring steel depends not only on its chemical composition but also on the way it is heat treated. Heat treatment involves heating the material to a certain temperature and then cooling it down quickly. There are several different types of heat treatments, including annealing, normalizing, and quenching.
In this research, the optimal heat treatment procedure for 38Si7 spring steel with a diameter of 13 mm was optimized using an orthogonal experiment. The effects of the quenching temperature, holding time and tempering temperature on the microstructure, mechanical properties and fatigue life were investigated. Additionally, the effect of decarburization behavior and fracture morphology was examined.
High carbon spring steel coil is a type of low-alloy, medium to high strength and ductile metal that is widely used in a variety of industrial applications. It is typically tempered and heat-treated, in order to improve its tensile strength, fatigue resistance, and corrosion resistance. The tempered product also has a higher elongation at rupture and a lower area reduction at fracture, compared to untreated steel. These properties make it a very popular choice for use in railway clips.
