Description
17-7PH Wire / 17-7PH Spring Wire
17-7PH Wire is a Precipitation Hardening Stainless Steel Spring Wires that provides high strength and hardness, excellent fatigue properties, good corrosion resistance, good formability, and minimum distortion upon heat treatment.
17-7PH Spring Wire provides valuable property combinations particularly well suited for aerospace applications. This special alloy also provides benefits for other applications requiring high strength and good corrosion resistance, as well as excellent properties for flat springs at temperatures up to 315°C (600°F).
17-7PH Spring Wire is a precipitation-hardening stainless steel wire known for its excellent combination of high strength, corrosion resistance, and elasticity. Commonly used in aerospace, automotive, and medical industries for springs and components requiring superior mechanical properties and durability in demanding environments.
Size Range :
Wire – 1.3 mm Dia to 12 mm Dia
We can also provide 17-7PH in other shapes like Round Bars, Flat Bars, Plates, Forgings etc. For more sizes availbility please email your inquiry at textron.steel.alloys@gmail.com .
17-7PH Chemical Composition of 17-7PH Spring Wire :
| Elements | Min. | Max. |
| C | – | 0.09 |
| Mn | – | 1.00 |
| Si | – | 1.00 |
| P | – | 0.040 |
| S | – | 0.030 |
| Cr | 16.00 | 18.00 |
| Ni | 6.50 | 7.75 |
| Al | 0.75 | 1.50 |
Equivalent Standard / Designation 17-7PH :
AISI 631
SAE 631
UNS S17700
EN X7CrNiAl17-7
Mat No. 1.4568 / 1.4564
Applications of 17-7PH Spring Wire :
17-7PH Spring Wires finds applications in various industries where its exceptional mechanical properties are advantageous. Common applications include:
• Aerospace: Used in components like springs, fasteners, and structural elements due to its high strength-to-weight ratio and corrosion resistance.
• Automotive: Employed in automotive suspension systems, engine valve springs, and transmission components due to its high tensile strength and corrosion resistance.
• Medical: Utilized in medical devices such as surgical instruments, orthopedic implants, and dental instruments due to its biocompatibility and resilience.
• Oil and Gas: Used in downhole tools, valve springs, and wireline applications due to its resistance to corrosion and high pressure environments.
• Marine: Employed in marine equipment and offshore structures due to its corrosion resistance and ability to withstand harsh environments.
• Industrial Machinery: Utilized in various machinery and equipment for springs, wire forms, and fasteners due to its durability and reliability.
• Electronics: Used in electronic connectors, switches, and sensors requiring high strength and resistance to corrosion.
• Sporting Goods: Employed in sports equipment such as fishing rods, golf clubs, and bicycle components due to its resilience and durability.
These applications demonstrate the versatility and reliability of 17-7 PH spring wires across a wide range of industries.
