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 working temperature range.

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-quenching 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 retainer rings. Hard-drawn carbon steel does not have a grade number, 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 these materials can corrode without lubrication or sealing. Additional corrosion protection can be achieved through special surface treatments. The retaining rings and springs are typically supplied with oil immersion surface treatment to provide protection during transportation and storage on shelves.

•Carbon steel is highly magnetic and can present various 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.302The elasticity of stainless steel is derived 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 by heat treatment.

•302Silver gray.

316Stainless Steel

316Stainless steel and302Stainless steel has nearly identical physical properties and heat resistance. Due to the presence of molybdenum, it exhibits higher corrosion resistance, particularly against pitting corrosion.316Stainless steel is commonly used in food, chemical, and marine applications.

316Stainless steel has less magneticity than302Stainless steel. But with302Stainless steel, like the same, its magnetism increases with the cold rolling of the wire.316Stainless steel cannot be hardened through heat treatment.

•316Silver gray.

17-7PHPrecipitation Hardening Stainless Steel

The corrosion resistance of this alloy is302Stainless steel similar, but with higher tensile and yield strengths, suitable for special snap ring applications. Resistant to fatigue and under high stress conditions,17-7Its performance is superior to that of high-performance carbon steel.

Its elasticity is achieved byCState sedimentation hardening toCH900Achieved through status. Therefore, the material can withstand.343℃High temperature without losing elasticity.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, 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 types of commonly used chromium-nickel iron alloys are described as follows. Generally speaking,InconelX-750Through precipitation heat treatment to achieve spring condition. Alloys treated in this manner can withstand high371˚CTemperature. Corrosion Engineers Association(NACE)Permitted for complianceMR-01-75（RC50Products with large value are used in spiral retainers and wave springs through this hard tempering process./Compressed 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 carried out 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, resulting in no residues 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 hard temper state, this alloy, with its combination of low modulus of elasticity and high ultimate tensile strength, exhibits excellent spring properties. The physical properties of this alloy 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 phosphor 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. The material also does not possess magnetic properties.

Material Surface Treatment

Turn black

This surface treatment offers a matte black finish. The black oxide is primarily 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 isTypeVAndTypeVIAll complyRoHSCoating thickness is determined by the service condition number (SC(No.) Decision, the customer can proceed with this. Galvanizing does not necessarily cover the part between each spring coil. This process can cause the retainer 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. The oil provides corrosion resistance during transportation and everyday storage. The oil immersion surface treatment should not be considered permanent.

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 film that completely covers the retaining ring surface, which also prevents further oxidation. Removing contaminants can prevent the destruction of the oxide film, thereby achieving good corrosion resistance.

Phosphatized

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 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.

Flow solvent between each turn of the collar using 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 ends. To remove the sharp corners and achieve coordination/Smooth surface finish, suitable for deburring by vibration or manual deburring of the retaining ring to meet your specifications.