Material Type

Selecting the appropriate material for 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 range of working temperatures.

Carbon Spring Steel

65Mn

SWRH 72A/72B

SAE1070-1090

SAE1070-1090High-carbon tempered spring steel is the standard material for spiral retainers and wave springs. The martensitic structure produced by the 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. Hard-drawn carbon steel does not have a grade as its strength is determined by the drawing process.

These carbon steels produced through these tempering processes are suitable for environments with existing protective measures, as they can corrode in the absence of 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 shelf storage.

•Carbon steel has high magnetic properties and can present various colors, including blue, black, and gray.

Stainless Steel

302Stainless Steel

302Stainless steel is the standard material for spiral retaining rings. Its widespread use is due to its combination of corrosion resistance and excellent physical properties.302The elasticity of stainless steel originates from the cold working process. Although it is non-magnetic stainless steel, after cold working,302It will have a slight magnetic property. It cannot be hardened through heat treatment.

•302Silver gray.

316Stainless steel

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

316Magnetic property of stainless steel is less than302Stainless steel. But with302Stainless steel, like the same, 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 precipitation硬化

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 throughCState sedimentation hardened toCH900Achieved through 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 colors.

Super Alloy

InconelX-750

This nickel-chromium alloy is commonly used in high-temperature and corrosive environments. Two types of commonly used chromium-nickel-iron alloys are described as follows. Generally speaking,InconelX-750Through precipitation heat treatment to achieve spring condition. The alloy treated in this manner can withstand high371˚CTemperature. Corrosion Engineers Association.(NACE)Permitted to comply with standardsMR-01-75（RC50Products with this hard tempering process (high value) are used for spiral retaining rings and wave springs./Coiled Springs1The tempering process requires a longer heat treatment than that for springs, resulting in lower tensile strength but offering high538˚CTemperature protection.

Spring tempering and1The tempering number can be heat treated in an open-air or controlled atmosphere furnace. Open-air heat treatment may cause oxidation, often resulting in 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./Silver gray, non-magnetic.

Copper

25Beryllium copper alloy

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

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

AGrade Phosphor Bronze

Phosphor bronze offers excellent spring properties and conductivity, with performance slightly inferior 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 provides a matte black finish. Black oxide is more commonly 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 coating is often used as a cost-effective and environmentally friendly alternative. Our standard zinc coating solution includes:TypeVAndTypeVIAll meetRoHSCoating thickness is determined by the service condition number (SC(No.) decision, the customer can opt for this. Zinc coating does not necessarily cover the gaps between each spring coil. This process can cause the retainer to become hydride embrittled.RaleighOffer stainless steel as an alternative choice for cadmium and zinc plating.

Oiled

This isRaleighAll products produced using carbon steel feature standard surface treatment. The oil provides corrosion resistance during transportation and daily storage. The 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 not dissolved, these foreign particles can lead to rusting, 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. The corrosion resistance of phosphates is better than that of black oxides, but not as good as cadmium plating or stainless steel. Phosphates cannot be applied to stainless steel.

Steam Degreasing/Ultrasonic Cleaning

This is a 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 exposed surfaces of retainers or springs.

Flowing solvent between each ring of the barrier ring through ultrasonic means.

Vibration Deburring/Manual burr removal

AlthoughRaleighAll circumferential surfaces and edges of the retaining ring are smooth; however, due to the shearing operation, sharp corners are always present at the gap ends. To remove the sharp corners and achieve a coordinated/Smooth surface finish, suitable for deburring by vibration or manual deburring of the retaining ring to meet your requirements.