Quick Answer
Stainless steel wire performance is controlled by more than grade. Diameter, cold-work level, temper, tensile range, surface, straightness or cast, and the final forming process can be equally important. Select 304/304L for many general corrosion applications, 316/316L where the service requires improved resistance to chloride-related attack, and spring or precipitation-hardening grades only when their condition and required properties are clearly specified.
Stainless steel wire performance is controlled by more than grade. Diameter, cold-work level, temper, tensile range, surface, straightness or cast, and the final forming process can be equally important. Select 304/304L for many general corrosion applications, 316/316L where the service requires improved resistance to chloride-related attack, and spring or precipitation-hardening grades only when their condition and required properties are clearly specified.
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Performance Factors
- Corrosion resistance: depends on grade, surface condition and exposure.
- Strength and formability: change with cold drawing and temper.
- Fatigue behavior: depends on stress range, surface defects, bends and residual stress.
- Magnetic response: may change after cold working even in austenitic grades.
- Processability: is influenced by diameter tolerance, lubrication residue, cast, helix and surface quality.
Grade Selection by Requirement
| Requirement | Selection Direction |
|---|---|
| General forming and corrosion resistance | 304 or 304L, subject to the environment and required condition |
| More demanding chloride exposure | Evaluate 316/316L and the full service conditions |
| Springs | Specify the spring-wire standard, grade, diameter and tensile range |
| Precision formed parts | Control surface, cast, helix, diameter tolerance and temper |
Avoid grade-only RFQs: “304 wire” does not define whether the buyer needs annealed wire, cold-drawn wire, spring temper, welding wire or another controlled condition.
RFQ Checklist
- Grade and governing wire standard.
- Diameter or profile with tolerance.
- Condition, temper or tensile-strength range.
- Surface, coating and cleanliness requirement.
- Coil, spool or straight-length form.
- Application, forming process and required inspection documents.
For small-diameter use cases, see small-diameter stainless steel wire applications. Send the full specification through our contact page.
Post time: Mar-12-2018