Material Type
Selecting the appropriate material for application requiresRaleighWe have a good understanding of the common materials used in flat wire products. The correct material can prevent additional costs and malfunctions during operation. Carbon steel is a commonly used material. While stainless steel is more expensive than carbon steel, it offers better corrosion resistance and a wider range of working temperatures.
Carbon Spring Steel
65Mn
SWRH 72A/72B
SAE1070-1090
SAE1070-1090High carbon tempered spring steel is the standard material used for helical retainers and wave springs. The martensitic structure produced by oil tempering process significantly enhances the tensile and yield strength of the material.
SAE1060-107
SAE1060-1075High-carbon hard-drawn spring steel is the standard material for clip retaining rings. The hard-drawn carbon steel does not have a grade as its strength is determined by the drawing process.
These types of tempering processes produce carbon steel suitable for environments with existing protective measures, as this material can corrode without lubrication or sealing. Additional corrosion protection can be achieved through special surface treatments. The retaining rings and springs are typically oil-immersed for surface treatment upon delivery to provide protection during transportation and storage on shelves.
•Carbon steel is highly magnetic and can display various colors, including blue, black, and gray.
Stainless Steel
302Stainless Steel
302Stainless steel is the standard material used for spiral retainers. This material is widely used due to its combination of corrosion resistance and good physical properties.302The elasticity of stainless steel stems from the cold working process. Although it is non-magnetic stainless steel, it becomes so after cold working.302It will have a slight magnetic property. It cannot be hardened by heat treatment.
•302Silver gray.
316Stainless Steel
316Stainless steel and302The physical properties and heat resistance of stainless steel are almost identical. Due to the presence of molybdenum, its corrosion resistance is higher, especially against pitting corrosion.316Stainless steel is commonly used in food, chemical, and seawater applications.
316Stainless steel has less magnetism than302Stainless steel. But with302Stainless steel, like its counterparts, its magnetism increases with the cold rolling of the wire.316Stainless steel cannot be hardened through heat treatment.
•316Silver gray.
17-7PHPrecipitation Hardened Stainless Steel
The corrosion resistance of this alloy is302Stainless steel similar, but with higher tensile and yield strengths, it is suitable for special snap ring applications. Resists fatigue and high stress conditions.17-7Its performance is superior to that of high-performance carbon steel.
Its elasticity is achieved by the use ofCState settled and hardened toCH900Achieved through status. Therefore, the material can withstand.343℃High temperature resistance without loss of elasticity.17-7PHPrecipitation HardeningCH900The magnetic properties of stainless steel are similar to those of high-carbon steel.
•After precipitation hardening,17-7Due to the open-air heat treatment, the color is blue, brown, or silver, while controlled air heat treatment offers bright colors.
Super Alloy
InconelX-750
This nickel-chromium alloy is commonly used in high-temperature and corrosive environments. Two commonly used chromium-nickel iron alloys are described as follows. Under normal circumstances,InconelX-750Achieve spring condition through heat treatment precipitation. Alloys treated this way can withstand high371˚CTemperature. Corrosion Engineers Association(NACE)Permitted for complianceMR-01-75（RC50Products processed with this hard tempering technique (high value) are used for spiral retaining rings and wave springs./Coiled Springs.1Hardening number requires a longer heat treatment than spring hardening, with lower tensile strength, but offers high538˚CTemperature protection.
Spring tempering and1The tempering process can be conducted in either open-air or controlled atmosphere tempering furnaces. Open-air heat treatment may result in oxidation, often leading to slight black residues. A controlled atmosphere environment eliminates oxidation issues, leaving no residues on the products produced.
•Retainers and springs made from this grade of chrome-nickel iron alloy are blue in color./Silver gray and non-magnetic.
Copper
25Beryllium Copper Alloy
Typically used in its hardening state, this alloy, with its combination of low modulus of elasticity and high ultimate tensile strength, exhibits excellent spring characteristics. Its physical properties are achieved through precipitation hardening. Compared to other copper alloys, beryllium copper alloys offer high strength and show minimal change in physical properties with increasing temperature.
•Beryllium copper alloys are non-magnetic. Their conductivity is approximately that of beryllium bronze.2-4Multiple
AGrade Phosphor Bronze
Phosphor bronze offers excellent spring properties and conductivity, with slightly lower performance compared to beryllium copper alloys. It is sold in spring temper to maximize spring characteristics.
•Phosphor bronze can only be hardened through cold working. This material also lacks magnetic properties.
Material Surface Treatment
Blackened
This surface treatment provides a matte black finish. Black oxide is more commonly used for aesthetic purposes rather than for enhancing corrosion resistance.
Galvanized
Zinc is electroplated onto carbon steel to enhance the product's corrosion resistance. Compared to cadmium plating, zinc plating is often used as a more cost-effective and environmentally friendly alternative. Our standard zinc plating solution includes:TypeVAndTypeVIAll comply withRoHSCoating thickness is determined by the service condition number (SC(No.) Decision allows the customer to do this. Galvanizing does not necessarily cover the parts between each turn of the multi-coil spring. This process can cause the retaining ring to undergo hydrogen embrittlement.RaleighOffer stainless steel as an alternative choice for cadmium and zinc plating.
Oiled
This isRaleighAll products produced from carbon steel feature standard surface treatment. The oil provides corrosion resistance during transportation and daily storage. Oil immersion surface treatment should not be considered as a durable surface treatment.
Passivation
Passivation is an optional cleaning process for stainless steel. It provides a shiny surface and improves corrosion resistance. Passivation can dissolve iron particles and other substances embedded in the surface of stainless steel during the production process. If these foreign particles are not dissolved, they may cause rusting, discoloration, or even electrolytic corrosion.
In theory, stainless steel's corrosion resistance is provided by a thin, invisible oxide layer that completely covers the retainer surface, which also prevents further oxidation. Removing contaminants can prevent the destruction of the oxide layer, thereby achieving good corrosion resistance.
Phosphatized
The appearance is gray-black. Phosphate coating offers better corrosion resistance than black oxide, but is not as durable as cadmium plating or stainless steel. Phosphate coating is not suitable for stainless steel.
Steam Degreasing/Ultrasonic Cleaning
This is the standard cleaning and surface treatment for all stainless steel. The process employs chloride-based solvents to remove oil and other organic substances from the material's surface. This solvent effectively removes grease from the exposed surfaces of retainers or springs.
Flowing solvent between the rings of the retainer via ultrasonic waves.
Vibratory Deburring/Manual burr removal
AlthoughRaleighAll circular surfaces and edges of the retaining ring are smooth, but due to the shearing operation, sharp corners are always present at the gap ends. To remove the sharp corners and achieve a coordinated/The smooth surface finish allows for deburring via vibration or manual deburring of the retainer, to meet your specifications.
