Material Type

Selecting the appropriate material for the application requiresRaleighWe have a good understanding of the common materials used in扁线 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 temperature range for operation.

Carbon Spring Steel

65Mn

SWRH 72A/72B

SAE1070-1090

SAE1070-1090High-carbon tempered spring steel is the standard material for spiral retaining rings and wave springs. The martensitic structure produced by the oil quenching process significantly enhances the material's tensile and yield strengths.

SAE1060-107

SAE1060-1075High-carbon cold-drawn spring steel is the standard material for snap ring retainers. The hard-drawn carbon steel does not have a grade as its strength is determined by the drawing process.

These carbon steel materials produced by these tempering processes are suitable for environments with existing protective measures, as they may corrode in the absence of 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 has high magnetic properties and can exhibit a variety of colors, including blue, black, and gray.

Stainless Steel

302Stainless steel

302Stainless steel is the standard material for spiral retaining rings. This material is widely used due to its combination of corrosion resistance and good physical properties.302Stainless steel's elasticity 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, similarly, its magnetism increases with the cold rolling of the steel wire.316Stainless steel cannot be hardened through heat treatment.

•316Silver gray.

17-7PHMartensitic Stainless Steel with Precipitation Hardening

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

Its elasticity is achieved byCState sedimentation hardening toCH900To achieve the status. Therefore, the material can withstand.343℃Retains elasticity at high temperatures without loss.17-7PHPrecipitation HardeningCH900The magnetic properties of the stainless steel are similar to those of high-carbon steel.

•After precipitation hardening,17-7Due to the open-air heat treatment, the color appears blue, brown, or silver, whereas controlled air heat treatment offers bright hues.

Super Alloy

InconelX-750

This nickel-chromium alloy is commonly used in high-temperature and corrosive environments. Two types of commonly used nickel-chromium-iron alloys are described as follows. Generally speaking,InconelX-750Achieved spring condition through heat treatment. The alloy treated in this manner is capable of withstanding high371˚CTemperature. Corrosion Engineers Association(NACE)Permitted to comply with specificationsMR-01-75（RC50Products of this hard tempering process (high value) are used for spiral retaining rings and wave springs./Compressed Springs1Numbered tempering requires a longer heat treatment than spring tempering, resulting in lower tensile strength, but offers high538˚CTemperature protection.

Spring tempering and1The tempering number can be heat treated in an open air or controlled atmosphere tempering furnace. Open air heat treatment may result in oxidation, often leading to slight black residue. A controlled atmosphere environment eliminates oxidation issues, leaving no residue on the products produced.

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

Copper

25Beryllium copper alloy

Typically used in its hard temper state, this alloy boasts excellent spring properties due to its combination of low modulus of elasticity and high ultimate tensile strength. Its physical properties are achieved through precipitation hardening. Compared to other copper alloys, beryllium copper exhibits high strength and its physical properties change little with temperature increase.

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

AGrade B phosphor bronze

Phosphor bronze offers excellent spring properties and conductivity, slightly inferior in performance 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.

Surface Material Treatment

Turn black

This surface treatment offers a matte black finish. Black oxide is primarily used for aesthetic purposes rather than for enhancing corrosion resistance.

Galvanized

Zinc is commonly applied to 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 meet the requirements.RoHSCoating thickness is determined by the service condition numberSC(No.) decision, the customer can proceed with 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 using carbon steel feature standard surface treatment. Oil imparts corrosion resistance during transportation and daily 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 shiny 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 these foreign particles are not dissolved, they may cause rusting, discoloration, or 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.

Phosphatized

The appearance is gray-black. Phosphate coating has better corrosion resistance than black oxide, but is not as good as cadmium plating or stainless steel. Phosphate coating 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 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.

Flow solvent between each turn of the retainer ring via ultrasonic waves.

Vibratory Deburring/Manual burr removal

AlthoughRaleighAll circumferential surfaces and edges of the retaining ring are smooth, but due to shearing operations, sharp corners are always present at the gap end. To remove the sharp corners and achieve coordination,/Smooth surface finish; vibration deburring or manual deburring of the retainer is available to meet your requirements.