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 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 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 in the absence of lubrication or sealing. Additional corrosion protection can be achieved through special surface treatments. The retaining rings and springs are typically oil-bath treated upon delivery to provide protection during transportation and shelf storage.

•Carbon steel has high magnetism and can appear in various colors, including blue, black, and gray.

Stainless Steel

302Stainless Steel

302Stainless steel is the standard material used for spiral retainers. 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, it becomes so 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 almost identical. Due to the presence of molybdenum, its corrosion resistance is higher, especially against pitting corrosion.316Stainless steel is commonly used in food, chemical, and seawater applications.

316The magneticity of stainless steel is less than302Stainless steel. But with302Stainless steel, like its counterparts, becomes more magnetic as the wire is cold rolled.316Stainless steel cannot be hardened through heat treatment.

•316Silver gray.

17-7PHMartensitic Stainless Steel with Precipitation Hardening

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.17-7Higher performance than high-performance carbon steel.

Its elasticity is achieved byCState sedimentation hardening toCH900The material can withstand.343℃Retains elasticity at high temperatures without loss.17-7PHPrecipitation HardeningCH900The magnetic properties of the state 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. Under normal circumstances,InconelX-750Through precipitation heat treatment to achieve spring condition. The alloy so treated can withstand high371˚CTemperature. Corrosion Engineers Association(NACE)Permitted for complianceMR-01-75（RC50Products of this hard tempering process (high value) are used for spiral retaining rings and wave springs./Compressed Springs.1Hardening number requires a longer heat treatment than spring hardening, 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 products produced.

•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 exhibits excellent spring characteristics due to its combination of low modulus of elasticity and high ultimate tensile strength. The alloy's physical properties 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, with slightly lower performance than 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 does not possess magnetic properties.

Material Surface Treatment

Blacken

This surface treatment provides a matte black finish. Black oxide is primarily used for aesthetic purposes rather than for 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 more cost-effective and environmentally friendly alternative. Our standard galvanizing solution includesTypeVAndTypeVIAll comply withRoHSCoating thickness is determined by the service condition number (SC(No.) Decisions, customers may opt to. Galvanizing does not necessarily cover the part between each turn of the multi-coil spring. This process can cause the shackle to become brittle due to 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 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 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.

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 the standard cleaning and surface treatment for all stainless steel. The process utilizes chlorinated 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 the solvent between each circle of the barrier ring through 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; deburring can be achieved through vibration on the retainer or manual deburring to meet your requirements.