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 extra 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 tempered spring steel is the standard material for spiral retaining rings 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 heat treatment 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 retaining rings and springs are typically supplied with oil immersion surface treatment to provide protection during transportation and shelf storage.

•Carbon steel is highly magnetic and can exhibit a variety of colors, including blue, black, and gray.

Stainless Steel

302Stainless Steel

302Stainless steel is the standard material used for spiral retainers. This material is widely used due to its combination of corrosion resistance and good 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 will have a slight magnetic property. It cannot be hardened through 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 boasts enhanced corrosion resistance, particularly 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 as the wire is cold rolled.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,17-7The performance is superior to that of high-performance carbon steel.

Its elasticity is achieved byCState sedimentation hardening toCH900To achieve the state. Therefore, the material can withstand.343℃Retains elasticity at high temperatures without loss.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 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 types of commonly used chromium-nickel-iron alloys are described as follows. Under normal circumstances,InconelX-750The alloy, treated to reach spring condition through precipitation hardening, can withstand high371˚CTemperature. Association of Corrosion Engineers.(NACE)Permitted for complianceMR-01-75（RC50Products processed through this hard tempering technique (high value) are used for spiral retaining rings and wave springs./Coiled Springs.1The tempering process requires a longer heat treatment than spring tempering, resulting in lower tensile strength but higher...538˚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 residue. A controlled atmosphere environment eliminates oxidation issues, ensuring no residue is left on the products.

•Retainers and springs manufactured 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 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 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 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. This material is also non-magnetic.

Material Surface Treatment

Turn black

This surface treatment provides a matte black finish. Black oxide is primarily used for aesthetic purposes rather than 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 comply withRoHSCoating thickness is determined by the service condition number (SC(No.) decision, the customer may opt for this. Galvanizing does not necessarily cover the parts between each turn of the multi-coil spring. This process can cause the retaining ring to undergo hydrogen embrittlement.RaleighOffer stainless steel as an alternative 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 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 rust, 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. Phosphate coating offers better corrosion resistance than black oxide, but is not as durable as cadmium plating or stainless steel. Phosphate coating is not applicable to stainless steel.

Steam De-greasing/Ultrasonic Cleaning

This is a standard cleaning and surface treatment for all stainless steel. The process uses chloride solvents to remove oil and other organic components from the material's surface. This solvent effectively removes grease from exposed surfaces of retainers or springs.

The solvent flows between the rings 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 ends. To remove the sharp corners and achieve coordination,/Smooth surface finish; can be deburred by vibration on the retainer or by hand to meet your requirements.