Stainless Steel Compression Spring
Stainless steel springs are springs made from stainless steel materials. Their key features include corrosion resistance, rust resistance, and high-temperature resistance. They are commonly used in humid environments, outdoor applications, chemical environments, or situations requiring longer service life.
Stainless Steel Spring Materials – Classification:
SUS304:
The most common and widely used stainless steel spring material. It offers good corrosion resistance and heat resistance up to approximately 200–250°C.
SUS301:
Provides higher tensile strength compared to SUS304.
SUS316:
Offers stronger corrosion resistance than SUS304. It is often used in chemical equipment and coastal environments, and it is more expensive.
SUS631 (17-7PH):
High hardness and higher strength than SUS304 and SUS316. It can undergo precipitation-hardening (PH) treatment and provides excellent elasticity. Mainly suitable for high-precision industrial components and aerospace parts.
Stainless Steel Springs｜Complete Guide to Materials, Properties, and Industrial Applications
Features and Advantages of Stainless Steel Springs
Excellent corrosion resistance, rust resistance, and high-temperature performance
Suitable for humid, outdoor, and chemical environments
Longer service life compared to regular spring materials
Higher stability in industrial machinery and equipment
Main Types of Stainless Steel Springs
Wave Springs
High elasticity with excellent vibration absorption; suitable for precision devices.
Conical Springs
Capable of handling higher loads; often used where space is limited.
Custom Hook Extension Springs
Customizable hook shapes to meet various extension and mechanism requirements.
Spring Clips
Easy to install; used for fastening, clamping, and positioning.
Stainless Steel Material Comparison (SUS304 / 301 / 316 / 631)
SUS304 Stainless Steel Springs
The most commonly used material with good corrosion resistance
Heat resistance around 200–250°C
SUS301 Stainless Steel Springs
Higher tensile strength than SUS304
Suitable for applications requiring higher strength and elasticity
SUS316 Stainless Steel Springs
Superior corrosion resistance
Ideal for chemical equipment, seaside environments, and highly corrosive conditions
SUS631 (17-7PH) Stainless Steel Springs
High hardness, excellent elasticity, and capable of precipitation-hardening treatment
Used for high-performance industrial parts, precision components, and aerospace applications
Common Application Fields of Stainless Steel Springs
Industrial machinery and equipment
Precision mechanisms and electronic devices
Chemical and laboratory equipment
Aerospace, measurement instruments, and medical devices
Custom Stainless Steel Spring Services
Customized dimensions, wire diameter, and load requirements
Spring rate, working environment specifications
Support from small-batch prototyping to mass production