What is SS316Ti spring steel strip?
SS316Ti spring steel strip is a cold-rolled stainless steel strip made from AISI 316Ti stainless steel, specifically designed for springs and elastic components. The addition of titanium prevents intergranular corrosion at high temperatures, maintaining strength, elasticity, and corrosion resistance even after welding or heating. Compared to SS316 or SS304 spring steel strips, SS316Ti performs better in high-temperature and corrosive environments, making it an ideal choice for long-term, high-reliability applications.
Main Advantages of SS316Ti Spring Steel Strip:
1. Excellent Corrosion Resistance: Resistant to acid and chloride corrosion, and marine atmospheric corrosion, superior to SS304, and more stable than standard SS316 at high temperatures.
2. High Temperature Stability: Maintains spring performance even at 600°C, making it ideal for heat exchangers and thermal equipment.
3. Outstanding Spring Performance: High elasticity and fatigue resistance, suitable for precision springs and flexible components.
4. Good Formability and Weldability: Easy to cut, stamp, bend, and weld, without the post-weld corrosion problems common in non-stabilized grades.
5. Long Service Life: Reduces maintenance and replacement costs, making it an ideal choice for critical components requiring long-term operation.
Chemical Composition of SS316Ti (Typical)
| Element | Content (%) | Function |
|---|---|---|
| Carbon (C) | ≤0.08 | Strength control |
| Chromium (Cr) | 16–18 | Corrosion resistance |
| Nickel (Ni) | 10–14 | Toughness & ductility |
| Molybdenum (Mo) | 2–3 | Resistance to pitting & chlorides |
| Titanium (Ti) | ≥5×C | Prevents carbide precipitation |
| Iron (Fe) | Balance | Base metal |
Mechanical Properties (Spring Condition)
| Property | Typical Value |
|---|---|
| Tensile Strength | 900–1200 MPa |
| Yield Strength | ≥600 MPa |
| Hardness | HV 220–380 (customizable) |
| Elastic Limit | Excellent |
| Fatigue Resistance | High |
| Service Temperature | Up to 600°C |
Applications of SS316Ti Spring Steel Strips
SS316Ti spring steel strips are widely used in industries requiring elasticity + corrosion resistance + heat resistance:
Industrial springs (compression, tension, flat springs)
Aerospace components
Automotive exhaust & sensor springs
Chemical processing equipment
Heat exchangers & boilers
Marine and offshore equipment
Energy & power plant components
SS316Ti vs SS316 vs SS304 Spring Steel Strips
| Feature | SS304 | SS316 | SS316Ti |
|---|---|---|---|
| Corrosion Resistance | Good | Very Good | Excellent |
| Chloride Resistance | Moderate | High | High |
| High-Temp Stability | Limited | Moderate | Excellent |
| Intergranular Corrosion | Risk | Risk | Very Low |
| Spring Durability | Good | Better | Best |
Gnee supplies SS316Ti spring steel strips and provides complete traceability and quality data, including material certificates compliant with EN 10204 3.1 standard. Each batch undergoes dimensional inspection, tensile/hardness testing, and metallographic analysis to ensure compliance with ASTM A240 standard. The products are safely packaged using waterproof and rust-proof paper + plastic film + wooden pallets or metal frames, with added moisture-proof desiccant. The packaging is marked with the heat number, dimensions, and certification marks.
FAQ
Q1: Is SS316Ti better than SS316 for spring applications?
A: Yes. SS316Ti offers better high-temperature stability and resistance to intergranular corrosion, making it more reliable for springs exposed to heat or welding.
Q2: Can SS316Ti spring steel strips be customized?
A: Yes. Thickness, width, hardness, surface finish, and spring temper can all be customized.
Q3: Is SS316Ti suitable for marine environments?
A: Yes. Its molybdenum content provides excellent resistance to saltwater and chloride corrosion.
Q4: What surface finishes are available?
A: Common finishes include 2B, BA, polished, and slit-edge finishes, depending on application needs.
Q5: Is SS316Ti magnetic?
A: No. SS316Ti is non-magnetic in annealed condition, suitable for precision equipment.