Material Type

Selecting the appropriate materials 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 range of working temperatures.

Carbon Spring Steel

65Mn

SWRH 72A/72B

SAE1070-1090

SAE1070-1090High-carbon tempered spring steel is the standard material used for helical retainers and wave springs. The martensitic structure produced by 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 snap ring retainers. Hard-drawn carbon steel is unbranded 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 can corrode without lubrication or sealing. Additional corrosion protection can be achieved through special surface treatments. The retainers and springs are typically supplied with oil immersion surface treatment to provide protection during transportation and storage on shelves.

•Carbon steel has high magnetic properties and can display 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 excellent physical properties.302The elasticity of stainless steel stems 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 and302The physical properties and heat resistance of stainless steel are nearly identical. Due to the presence of molybdenum, its corrosion resistance is enhanced, particularly against pitting corrosion.316Stainless steel is commonly used in food, chemical, and seawater applications.

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

•316Silver gray.

17-7PHPrecipitation-hardened stainless steel

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

Its elasticity is achieved throughCState settled and hardened toCH900Achieve the state. 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, the color presents as 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. Under normal circumstances,InconelX-750Through precipitation heat treatment to achieve spring condition. The alloy treated in this manner can withstand high371˚CTemperature. Corrosion Engineers Association(NACE)Permitted for complianceMR-01-75（RC50Products of this hard tempering process, with large values, are used for spiral retainers and wave springs./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 conducted 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 eliminates oxidation issues, ensuring no residues are left on the products.

•Retainer washers 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 exhibits excellent spring properties due to the 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 has high strength and its physical properties change little with temperature increase.

•Beryllium copper alloys are non-magnetic. Their conductivity is approximately equal to that of beryllium 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 is also non-magnetic.

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 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 includesTypeVAndTypeVIAll meet the standards.RoHSThe coating thickness is determined by the service condition number (SC(No.) The customer may decide to proceed with this. Galvanizing does not necessarily cover the parts between each turn of the multi-coil spring. This process can cause the shims to become hydride embrittled.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 a permanent surface treatment.

Passivation

Passivation is an optional cleaning operation for stainless steel. It provides a bright 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 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, thus 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 employs chloride-based solvents to remove oil and other organic materials from the surface of the material. This solvent effectively removes grease from exposed surfaces of retainers or springs.

The solvent is made to flow between the circles of the collar through ultrasonic action.

Vibratory 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/The smooth surface finish allows for deburring of the retainer via vibration or manual deburring to meet your requirements.