If you are looking for high-strength, corrosion-resistant spring wire for precision mechanical applications, we can provide 17-7 PH stainless steel spring wire with consistent quality and reliable delivery.
Our 17-7 PH stainless steel spring wire is manufactured using precision hot rolling, cold drawing, and solution annealing processes to ensure strict diameter tolerances, a smooth surface finish, and a uniform microstructure. To guarantee product quality, each batch undergoes chemical composition analysis, tensile and hardness testing, surface defect inspection, dimensional verification, and necessary non-destructive testing. Complete material test certificates (MTC, EN 10204 3.1) and optional third-party inspection are provided to ensure traceability and reliability.
17-7 PH stainless steel spring wire is widely used in aerospace components, automotive springs, precision machinery, valve components, and electronic connectors, providing reliable material solutions for demanding high-performance applications.
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| Diameter (mm) | Standard | Length / Coil Weight | Condition | Surface Finish | Typical Applications |
|---|---|---|---|---|---|
| 0.10 – 0.30 | ASTM A313 / AMS 5640 | Coils 1–5 kg | Solution Treated | Bright, Pickled | Micro springs, precision clips |
| 0.31 – 0.50 | ASTM A313 / AMS 5640 | Coils 5–10 kg | Solution Treated | Bright, Pickled | Small springs, retaining rings |
| 0.51 – 1.00 | ASTM A313 / AMS 5640 | Coils 10–25 kg | Solution Treated | Bright, Pickled | Compression / tension springs |
| 1.01 – 2.00 | ASTM A313 / AMS 5640 | Coils 25–50 kg | Solution Treated | Bright, Pickled | Industrial springs, clips |
| 2.01 – 3.00 | ASTM A313 / AMS 5640 | Coils 50–100 kg | Solution Treated | Bright, Pickled | Heavy-duty springs, high-load applications |
| Element | Range (%) |
|---|---|
| Carbon (C) | 0.06 – 0.12 |
| Chromium (Cr) | 16.0 – 17.5 |
| Nickel (Ni) | 6.0 – 7.0 |
| Copper (Cu) | 1.0 – 1.5 |
| Manganese (Mn) | ≤ 1.0 |
| Silicon (Si) | ≤ 1.0 |
| Phosphorus (P) | ≤ 0.025 |
| Sulfur (S) | ≤ 0.015 |
| Iron (Fe) | Balance |
| Condition | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Hardness (HRC) |
|---|---|---|---|---|
| Solution Annealed (SA) | 930 – 1,180 | 620 – 965 | ≥ 12 | 28 – 35 |
| Age Hardened (H900) | 1,340 – 1,520 | 1,205 – 1,320 | 8 – 12 | 44 – 48 |
| Age Hardened (H1025) | 1,400 – 1,550 | 1,280 – 1,360 | 8 – 10 | 46 – 50 |
| Diameter (mm) | Diameter (inch) |
|---|---|
| 0.20 – 0.50 | 0.008 – 0.020" |
| 0.50 – 1.00 | 0.020 – 0.040" |
| 1.00 – 2.00 | 0.040 – 0.080" |
| 2.00 – 4.00 | 0.080 – 0.160" |
| 4.00 – 6.00 | 0.160 – 0.236" |
| Condition | Temperature (°C) | Time |
|---|---|---|
| Solution Annealed | 1,040 – 1,060 | 0.5 – 1 hour, water quench |
| Age Hardened H900 | 482 | 0.5 – 4 hours, air cool |
| Age Hardened H1025 | 560 | 1 – 4 hours, air cool |
Aerospace Components: Widely used for aircraft springs, fasteners, and structural components due to high strength-to-weight ratio and elevated temperature performance.
Industrial Springs & Fasteners: Ideal for compression springs, extension springs, torsion springs, and clips requiring high tensile strength.
Medical Instruments: Utilized in surgical instruments and devices requiring durability and corrosion resistance.
Looking for high-quality 17-7PH stainless steel spring wire for your precision springs, clips, or high-strength elastic components? Our premium 17-7PH wire offers exceptional strength, excellent fatigue resistance, and corrosion protection, supplied in a solution-treated condition ready for aging. Available in multiple diameters and coil sizes, with strict quality control and international certifications, we ensure reliable performance and on-time delivery.
Contact us today to request a quote or check stock availability-get the perfect 17-7PH spring wire for your project with fast delivery and full technical support.
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