Material Type

Selecting the appropriate material for 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. 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 tempering spring steel is the standard material used 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 snap ring retainers. 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 has high magnetic properties and can present various colors, including blue, black, and gray.

Stainless Steel

302Stainless Steel

302Stainless steel is the standard stainless steel 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 stems from the cold working process. Although it is non-magnetic stainless steel, it becomes so after cold working.302It has 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 properties of stainless steel are 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 similar, but with higher tensile and yield strengths, suitable for special retaining ring applications. Resistant to fatigue and under high stress conditions,17-7The performance is superior to that of high-performance carbon steel.

Its elasticity is achieved byCState sedimentation hardened toCH900To achieve the state. Therefore, the material can withstand.343℃High temperature without loss of 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 thermal treatment, it appears blue, brown, or silver, while the controlled air thermal 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-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 specificationsMR-01-75（RC50Products processed by this hard tempering technique (high value) are used for spiral retainers and wave springs./Compressed Springs.1Numbered tempering requires a longer heat treatment period 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, resulting in no residue 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

Typically used in its hardening 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 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 does not possess 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 galvanized onto carbon steel to enhance the product's corrosion resistance. Compared to cadmium plating, zinc galvanizing is often used as a more cost-effective and environmentally friendly alternative. Our standard galvanizing solution is:TypeVAndTypeVIAll comply withRoHSCoating thickness is determined by the service condition numberSC(No.) Decision, the customer can opt for this. Galvanizing does not necessarily cover the parts 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 with carbon steel feature standard surface treatment. Oil imparts corrosion resistance during transportation and daily storage. Oil immersion surface treatment should not be considered permanent.

Passivation

Passivation is an optional cleaning process for stainless steel. It provides a shiny surface and improves corrosion resistance. Passivation can dissolve iron particles and other substances embedded on the surface of stainless steel during the production process. If these foreign particles are not dissolved, they may lead to 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'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 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 the exposed surfaces of retainers or springs.

Flow solvent between each ring of the baffle using ultrasonic waves.

Deburring by Vibration/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 harmony/Smooth surface finish, allowing for deburring via vibration of the retainer or manual deburring to meet your requirements.