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 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 oil tempering 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 retainers. Hard-drawn carbon steel does not have a grade number, 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 oil-coated upon delivery to provide protection during transportation and shelf storage.

•Carbon steel is highly magnetic and can exhibit 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 used due to its combination of corrosion resistance and good physical properties.302The elasticity of stainless steel originates from the cold working process. Although it falls under non-magnetic stainless steel, after cold working,302It will have 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, its corrosion resistance is higher, especially 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 is similar in that its magnetism increases as the steel 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 is302Similar to stainless steel, but with higher tensile and yield strength, 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 hardened toCH900Achieved through status. Therefore, the material can withstand.343℃High temperature without losing elasticity.17-7PHDeposited 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 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-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 with this hard tempering process (high value) are used for spiral retaining rings and wave springs./Compressed Spring.1Hardening by number requires a longer heat treatment period than spring hardening, lower tensile strength, but offers high538˚CTemperature protection.

Spring tempering and1The tempering process can be conducted in an open-air or controlled atmosphere tempering furnace. 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 finished 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 hard temper state, this alloy, with its combination of low modulus of elasticity and high ultimate tensile strength, exhibits excellent spring properties. Its physical properties are achieved through precipitation hardening. Compared to other copper alloys, beryllium copper alloys offer high strength and show minimal changes 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. This material also does not possess magnetic properties.

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 plated onto carbon steel to enhance the product's corrosion resistance. Compared to cadmium plating, zinc plating is often used as a cost-effective and environmentally friendly alternative. Our standard zinc plating solution includesTypeVAndTypeVIAll comply withRoHSCoating 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 turn of the multi-coil spring. 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 as a permanent surface treatment.

Passivation

Passivation is an optional cleaning process 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 these foreign particles are not dissolved, they can lead to rusting, discoloration, and even electrolytic corrosion.

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

Flow the solvent between each ring of the collar through ultrasonic waves.

Vibratory Deburring/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/The smooth surface finish allows for deburring by vibration of the retainer or manual deburring to meet your specifications.