Material Type

Selecting the appropriate material for application requiresRaleighWe have a good understanding of the common materials used in扁线 products. The correct materials 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 working temperature range.

Carbon Spring Steel

65Mn

SWRH 72A/72B

SAE1070-1090

SAE1070-1090High-carbon tempering 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 material's tensile and yield strength.

SAE1060-107

SAE1060-1075High-carbon hard-drawn spring steel is the standard material for clip retaining rings. Hard-drawn carbon steel has no grade because its strength is determined by the drawing process.

These carbon steel materials 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 generally oil-coated for surface treatment upon delivery to provide protection during transportation and storage on shelves.

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

Stainless Steel

302Stainless Steel

302Stainless steel is the standard stainless steel used for spiral retainers. This material is widely used due to its combination of corrosion resistance and good physical properties.302Stainless steel's elasticity stems from the cold working process. Although it falls under non-magnetic stainless steel, after cold working,302It has a slight magnetic property. It cannot be hardened through heat treatment.

•302Silver gray.

316Stainless Steel

316Stainless steel and302Stainless steel exhibits similar 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 marine applications.

316Magnetic property of stainless steel is less than302Stainless steel. But with302Similar to stainless steel, its magnetism increases with the cold rolling of the steel wire.316Stainless steel cannot be hardened through heat treatment.

•316Silver gray.

17-7PHPrecipitation Hardened Stainless Steel

The corrosion resistance of this alloy is302Stainless steel-like, but with higher tensile and yield strength, suitable for special snap ring applications. Resistant to fatigue and under high stress conditions.17-7Its performance is superior to that of high-performance carbon steel.

Its elasticity is achieved by the use ofCState settled and hardened toCH900Achieved through status. Therefore, the material can withstand.343℃Retains elasticity at high temperatures without loss.17-7PHSediment 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 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-750Achieved spring condition through precipitation heat treatment. The alloy treated this way can withstand high371˚CTemperature; Corrosion Engineers Association(NACE)Permitted to comply with specificationsMR-01-75（RC50Products processed by this hard tempering technique (high value) are used for spiral retaining rings 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 residue. A controlled atmosphere environment eliminates oxidation issues, resulting in no residue 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, offers excellent spring properties. 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 more commonly used for aesthetic purposes rather than for enhancing corrosion resistance.

Galvanized

Galvanized zinc is applied to carbon steel to enhance the product's corrosion resistance. Compared to cadmium plating, zinc galvanizing is often used as a more cost-effective and environmentally friendly alternative. Our standard galvanizing solution includes:TypeVAndTypeVIAll meet the requirements.RoHSCoating 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 using 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 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 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'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 De-greasing/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 substances from the material's surface. This solvent effectively removes grease from the exposed surfaces of retainers or springs.

Flow solvent between each ring of the barrier ring via ultrasonic action.

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 coordination,/Smooth surface finish, suitable for deburring by vibration or manual deburring on the retaining ring to meet your requirements.