Material Type

Selecting the appropriate materials for application requiresRaleighWe have a good understanding of the common materials used in扁line products. The correct material can prevent extra costs and malfunctions during operation. Carbon steel is a commonly used material. Although 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 retaining rings and wave springs. The martensitic structure produced by the oil tempering process significantly enhances the tensile and yield strengths of the material.

SAE1060-107

SAE1060-1075High-carbon hard-drawn spring steel is the standard material for clip retaining rings. Hard-drawn carbon steel does not have a grade because its strength is determined by the drawing process.

These carbon steels produced by these tempering processes are suitable for environments with existing protective measures, as they can corrode without lubrication or sealing. Additional corrosion protection can be achieved through special surface treatments. The retainers and springs are typically supplied with an oil immersion surface treatment 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 stainless for spiral retaining rings. 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 a non-magnetic stainless steel, after cold working,302It will have a slight magnetic property. It cannot be hardened by heat treatment.

•302Silver gray.

316Stainless Steel

316Stainless steel and302Stainless steel boasts similar physical properties and heat resistance. Due to the presence of molybdenum, its corrosion resistance is enhanced, particularly against pitting corrosion.316Stainless steel is commonly used in food, chemical, and seawater applications.

316Magnetic properties of stainless steel are less than302Stainless steel. But with302Stainless steel, like other metals, its magnetic properties increase as the wire is cold-rolled.316Stainless steel cannot be hardened through heat treatment.

•316Silver gray.

17-7PHPrecipitation Hardening Stainless Steel

The corrosion resistance of this alloy is302Stainless steel alike, but due to higher tensile and yield strengths, it is suitable for special snap ring applications. Under fatigue resistance and high stress conditions,17-7The performance is superior to that of high-performance carbon steel.

Its elasticity is achieved throughCState settled and hardened toCH900Achieved through status. Therefore, the material can withstand.343℃High temperature without losing elasticity.17-7PHPrecipitation HardeningCH900The magnetic properties of the state stainless steel are similar to those of high carbon steel.

•After precipitation hardening,17-7Due to the open-air heat treatment, it presents in blue, brown, or silver, whereas the 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 precipitation heat treatment. Alloys treated this way can withstand high371˚CTemperature. Association of Corrosion Engineers.(NACE)Permitted in compliance with specificationsMR-01-75（RC50Products with high hardness (high value) from this hard tempering process are used for spiral retainers 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, ensuring no residues are left on the produced products.

•Retainers and springs made from this grade of chrome-nickel iron alloy are blue./Silver gray and non-magnetic.

Copper

25Beryllium copper alloy

Typically used in its hardened state, this alloy, with its combination of low modulus of elasticity and high ultimate tensile strength, exhibits excellent spring properties. Its physical properties are achieved through precipitation hardening. Compared to other copper alloys, beryllium copper has high strength and experiences minimal changes in its physical properties with increasing temperature.

•Beryllium copper alloys are non-magnetic. Their conductivity is approximately equal to that of phosphor bronze.2-4Multiple

AGrade Phosphor Bronze

Phosphor bronze offers excellent spring properties and conductivity, with performance slightly lower than beryllium copper alloys. It is sold in spring temper to maximize spring characteristics.

•Phosphor bronze can only be hardened through cold working. The material also does not have magnetic properties.

Material Surface Treatment

Turn black

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 meetRoHSCoating thickness is determined by the service condition numberSC(No.) decision, the customer may opt for this. Galvanizing does not necessarily cover the parts between each spring coil. This process can cause the retaining ring to become hydrogen embrittled.RaleighOffer stainless steel as an alternative choice for cadmium and zinc plating.

Oiled

This isRaleighAll products produced from carbon steel feature standard surface treatment. Oil provides corrosion resistance during transportation and everyday storage. Oil immersion surface treatment should not be considered a permanent surface treatment.

Passivation

Passivation is an optional cleaning operation for stainless steel. It provides a bright surface and enhances corrosion resistance. Passivation can dissolve iron particles and other substances embedded in the surface of stainless steel during the production process. If not dissolved, these foreign particles can lead to rust, discoloration, and even electrochemical corrosion.

In theory, the corrosion resistance of stainless steel is provided by a thin, invisible oxide layer completely covering the retaining ring surface, which also prevents further oxidation. Removing contaminants can prevent the destruction of the oxide layer, thereby achieving good corrosion resistance.

Phosphatizing

The appearance is gray-black. Phosphate's corrosion resistance is better than black oxide, but not as good as cadmium plating or stainless steel. Phosphate cannot be applied to stainless steel.

Steam Degreasing/Ultrasonic Cleaning

This is the standard cleaning and surface treatment for all stainless steel. The process uses chloride-based solvents to remove oil and other organic materials from the surface of the material. This solvent effectively removes grease from the exposed surfaces of retainers or springs.

The solvent flows between the rings of the collar through ultrasonic action.

Deburring by Vibration/Manual burr removal

AlthoughRaleighAll circumferential surfaces and edges of the retaining ring are smooth, but due to shearing operations, sharp angles are always present at the gap ends. To remove the sharp angles and achieve harmony/The smooth surface finish allows for deburring by vibration or manual deburring of the retainer, to meet your requirements.