Material Type

Selecting the appropriate material for the 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. Although 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 tempering 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 strengths of the material.

SAE1060-107

SAE1060-1075High-carbon hard-drawn spring steel is the standard material for buckle retaining rings. The hard-drawn carbon steel does not have a grade as 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 may 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 for protection during transportation and storage on shelves.

•Carbon steel has high magnetism and can come in 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 utilized 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 has a slight magnetic property. It cannot be hardened through 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, it offers higher corrosion resistance, especially 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 is similar in that 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-like, but with higher tensile and yield strengths, it is suitable for special snap ring applications. Under fatigue resistance and high-stress conditions,17-7Higher performance than high-performance carbon steel.

Its elasticity is achieved throughCState sedimentation hardening toCH900Achieved through status. Therefore, the material can withstand.343℃High temperature without losing elasticity.17-7PHDeposition 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 appears 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. Generally speaking,InconelX-750Achieve spring condition through heat treatment. The alloy treated in this manner can withstand high371˚CTemperature. Corrosion Engineers Association(NACE)Permitted to be in compliance with specificationsMR-01-75（RC50Products with this hard tempering process (high value) are used for spiral retaining rings and wave-shaped components./Compressed Spring.1Hardening number requires a longer heat treatment than spring hardening, with lower tensile strength, but offers high538˚CTemperature protection.

Spring tempering and1The tempering number can be heat treated in either open-air or controlled atmosphere tempering furnaces. Open-air heat treatment may result in oxidation, often leading to minor 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, non-magnetic.

Copper

25Beryllium copper alloy

Generally used in its hardening state, this alloy, with its combination of low elastic modulus and high ultimate tensile strength, produces excellent spring properties. Its physical properties are obtained through precipitation hardening. Compared to other copper alloys, beryllium copper alloys have high strength and their physical properties change little 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, 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. The material also lacks magnetic properties.

Surface Material Treatment

Turn black

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

Galvanized

Galvanized zinc is applied to carbon steel to enhance product corrosion resistance. Compared to cadmium plating, galvanizing is often used as a cost-effective and environmentally friendly alternative. Our standard galvanizing solution includes:TypeVAndTypeVIAll meetRoHSCoating thickness is determined by the service condition number (SC(No.) Decision, the customer can opt for this. Galvanizing does not necessarily cover the part between each spring coil. This process can cause the retainer to become hydrogen 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 as a durable 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. The corrosion resistance of phosphates is better than that of black oxides, but not as good as cadmium-plated or stainless steel. Phosphates 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 substances from the material's surface. This solvent effectively removes grease from the exposed surfaces of retainers or springs.

Flow solvent between each ring of the barrier ring via ultrasonic action.

Vibration Deburring/Manual burr removal

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