Material Type

Selecting the appropriate materials for the 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 the oil tempering process significantly enhances the tensile and yield strengths of the material.

SAE1060-107

SAE1060-1075High-carbon cold drawn spring steel is the standard material for snap ring retainers. The cold drawn carbon steel has no grade as its strength is determined by the drawing process.

These types of tempering processes produce carbon steel suitable for environments with existing protective measures, as these materials can corrode without lubrication or sealing. Additional corrosion protection can be achieved through special surface treatments. The retainers and springs are typically oil immersed during supply to provide protection during transportation and shelf storage.

•Carbon steel is highly magnetic and can appear in various colors, including blue, black, and gray.

Stainless steel

302Stainless Steel

302Stainless steel is the standard stainless used 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, it becomes so after cold working.302It has a slight magnetic property. It cannot be hardened by heat treatment.

•302Silver gray.

316Stainless Steel

316Stainless steel and302Stainless steel has nearly identical physical properties and heat resistance. 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 has less magnetism 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 due to higher tensile and yield strengths, it is suitable for special snap ring applications. Resistant to fatigue and under high stress conditions,17-7Performance exceeds high-carbon steel with a better performance ratio.

Its elasticity is achieved throughCState settled into hardeningCH900To achieve 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, it presents in 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. Under normal circumstances,InconelX-750Achieve spring condition through precipitation heat treatment. Alloys treated this way can withstand high371˚CTemperature. Association of Corrosion Engineers.(NACE)Permitted for complianceMR-01-75（RC50Products with this hard tempering process (high value) are used for spiral retaining rings and wave springs./Coiled Springs1Hardening No. requires a longer heat treatment than spring hardening, with lower tensile strength but higher...538˚CTemperature protection.

Spring tempering and1Numbered tempering can be heat treated in open air or controlled atmosphere tempering furnaces. Open air heat treatment may result in oxidation, often leading to slight black residues. A controlled atmosphere environment eliminates oxidation issues, resulting in no residues 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 hardening 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 have high strength and experience minimal changes in physical properties with temperature increases.

•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 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 includes:TypeVAndTypeVIAll meetRoHSCoating thickness is determined by the service condition number (SC(No.) Decision allows the customer to do so. Galvanizing does not necessarily cover the part between each spring coil. This process can cause the retaining ring to become hydrogen 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. The oil provides corrosion resistance during transportation and daily storage. Oil immersion surface treatment should not be considered a durable 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 rusting, discoloration, and even electrochemical corrosion.

In theory, stainless steel's corrosion resistance is provided by a thin, invisible oxide layer that completely covers the retainer surface, which also prevents further oxidation. Removing contaminants can prevent damage to 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 suitable for 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 the exposed surfaces of retainers or springs.

The solvent flows between each turn of the annular barrier through ultrasonic means.

Deburring by Vibration/Manual deburring

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, suitable for deburring by vibration or manual deburring of the retaining ring to meet your requirements.