Stainless Spring Wire
Material Grades: 302, 304, 301, 316/316L, 631 (17-7PH), 310S (2520)
Diameter Range: 0.08mm – 12mm
Lead Time: 8–14 working days
MOQ: 5 tons
Stainless Spring Wire
Stainless spring wire is a metal wire specially manufactured for spring production. Its most prominent features include high tensile strength, excellent elasticity, and superior fatigue resistance.
It is produced from stainless steel wire rods or steel bars through cold drawing, tempering, and heat treatment processes.
316 Drawn Stainless Steel Spring Wire
stainless steel spring wire supplier
Specifications
| Item | Stainless spring wire |
| Place of Origin | Hebei, China |
| Applicable Standards | AISI, ASTM, BS, DIN, JIS, GB, EN |
| Supply Form | Coil wire / Straight spring wire |
| Single Coil Weight | 1kg – 500kg |
| Surface Finish | Bright polished, pickled matte finish |
| Spring Temper | Full range of tempers, including extra spring-tempered stainless steel wire |
| Trade Terms | FOB, CIF, EXW, CFR, etc. |
| Packaging | Standard export packaging |
Introduction to Main Material Grades
301 Stainless Steel Spring Wire
It offers mild corrosion resistance, inferior to 304. Ideal for dry environments with strict strength & elasticity requirements and tight cost budgets.
302 Stainless Steel Spring Wire
General-purpose baseline spring wire. Better anti-rust performance than 301, high work hardening degree and outstanding elasticity at an affordable price, widely used for general spring applications.
spring tempered stainless steel wire
304 stainless steel spring wire
304 Stainless Steel Spring Wire
The most versatile anti-corrosion spring wire. Resists atmospheric and fresh water corrosion with non-magnetic property, delivering the best cost-performance ratio.
316 Stainless Steel Spring Wire
Specially designed for marine or chloride-rich environments, maintaining stable anti-oxidation performance under harsh corrosive conditions.
310S (2520) Stainless Steel Spring Wire
High-temperature resistant grade. Retains stable corrosion resistance under long-term high-temperature exposure, with maximum working temperature up to 1200℃.
17-7 PH Stainless Steel Spring Wire (631)
Top choice for high-precision premium springs, balancing ultra-high tensile strength and perfect elasticity. It is a precipitation-hardening stainless spring wire.
Mechanical Performance Table
| Grade | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation | Hardness |
|---|---|---|---|---|
| 301 Stainless Spring Wire | 1400–1800 | ≥1100 | ≥2% | 48–54 HRC |
| 302 Stainless Spring Wire | 1300–1700 | ≥1000 | ≥3% | 46–52 HRC |
| 304 Stainless Spring Wire | 1200–1600 | ≥950 | ≥4% | 44–50 HRC |
| 316 Stainless Spring Wire | 1150–1550 | ≥900 | ≥4% | 42–48 HRC |
| 310S (2520) Stainless Spring Wire | 900–1200 | ≥700 | ≥5% | 32–40 HRC |
| 17-7 PH Stainless Spring Wire | 1600–2100 | ≥1400 | ≥1.5% | 50–58 HRC |
Cold Drawn 301 304 316 Stainless Steel Spring Wire
stainless steel spring wire manufacturer
Cost & Corrosion Resistance Comparison Table
| Material Grade | Cost Level | Corrosion Resistance | Max Working Temperature |
|---|---|---|---|
| 301 | Lowest | Fair | 300℃ |
| 302 | Low | Fair | 350℃ |
| 304 | Medium | Good | 400℃ |
| 316 | Medium-High | Excellent | 450℃ |
| 310S (2520) | High | Very Good | 1000℃ |
| 17-7 PH | Highest | Good | 420℃ |
Core Advantages
- High Elasticity & Fatigue Strength: Quickly restores original shape after deformation under external force, resistant to fatigue fracture after repeated cycling.
- Outstanding Anti-Corrosion Performance: Stainless steel substrate delivers reliable rust resistance. Grades 304 and 316 perform excellently in various harsh working conditions.
- Wide Adaptability: Great high-temperature resistance, easy to twist and coil repeatedly with stable performance under heat treatment or boiler service. Smooth surface for easy cleaning.
- Complete Size Range: Coiled wire fits automatic spring coiling machines; straight spring wire is suitable for manual bending processing. Available for compression, tension, and torsion spring manufacturing.
Packaging and Shipping of 2mm SS Wire
302 stainless steel spring wire
Application Fields
- Machinery & Vehicles: Spring components for machine tools, construction machinery, agricultural equipment; shock absorption and clutch springs for automobiles.
- Medical Devices: Micro springs and implant accessories for medical equipment, hygienic grade material compliant.
- Electronics & Electrical Appliances: Button springs, switch springs, and battery contact tabs for electronic devices.
- Daily Hardware: Sofa & mattress springs, bag fasteners, elastic stationery accessories.
- Marine & Chemical Industry: Corrosion-resistant springs for exploration, mining, and marine instrument equipment.
Amusement facilities spring
Mattress spring wire
Two Product Surface Types
1. Bright Polished Stainless Spring Wire
2. Pickled Matte Stainless Spring Wire
Production Process Flow
Spring steel wire production line
FAQs
1. What is the difference between stainless spring wire and ordinary stainless steel wire?
2. Can we customize straight spring wire?
3. Can the wire be used in high-temperature environments without brittle cracking?
SS spring straight wire 3mm piano wire
Why Choose Wanzhi Steel?
- Direct Factory Supply: Factory-direct pricing, full series of material grades, customizable dimensions, packaging and hardness tempers.
- Sample Service: Free samples available for performance testing; volume discounts for formal orders with comprehensive after-sales support.
- Professional Technical Support: We recommend the most suitable material grade based on your working temperature, corrosive environment, and budget constraints.
- Strict Quality Inspection: Every batch undergoes comprehensive mechanical property and chemical composition testing to meet ASTM A313 standards, ensuring consistent project quality.
304 SS spring wire package
Spool Package
Get samples or a bulk quote! Chat with Us Online,
or send an email to: [email protected].
Wanzhi Steel is an ISO 9001-certified steel wire manufacturer based in Hebei, China. Specializing in the production of stainless steel spring wire in various grades—covering all diameters and surface finishes—as well as galvanized steel spring wire. Our monthly production capacity reaches 1,800 tons. Backed by rigorous quality control and customer-centric services, our products have been exported to over 120 countries worldwide.
