Stainless Steel 17‑7 PH Bars are strong, versatile, precipitation-hardening stainless steels offering superior formability, good tensile strength, and corrosion resistance. Supplied by Andre Stainless in Pulau Ujong, Singapore, the bars are offered in various tempers such as A‑900 and A‑1150 to ASTM A693 specifications. Renowned for excellent stress corrosion resistance as well as fatigue life, 17‑7 PH is extensively applied in aerospace, military, and industrial applications. Andre Stainless guarantees material traceability, bar uniformity, and MTC certification. They are a perfect choice for springs, actuators, fasteners, and other mechanically loaded components needing a delicate combination of formability and strength.
17‑7 PH has around 17% chromium, 7% nickel, 1% aluminum, and ≤0.07% carbon, along with minor titanium and niobium. In A‑900 tempered condition, tensile strength is approximately 900 MPa, yield strength ~860 MPa, elongation ~10%, and hardness ~34 HRC. In A‑1150 condition, it reaches ~1,050 MPa tensile strength, ~1,000 MPa yield, and hardness ~40 HRC. Provides superior toughness, spring recovery, and corrosion resistance by stress. Has good formability in annealed condition and behaves consistently to age hardening. Facilitates close dimensional control with minimal warpage or distortion.
| Grade | C | P | Si | Ni | Cu | Fe | Mn | S | Cr | AL |
| SS 17-7 PH | .09 | .04 | 1.0 max | 6.50 – 7.75 | – | Bal | 1.0 max | 0.04 | 16.0 – 18.0 | .75 – 1.50 |
Properties | Metric | Imperial |
|---|---|---|
Tensile strength | 1170 MPa | 170000 psi |
Yield strength | 965 MPa | 140000 psi |
Modulus of elasticity | 204 GPa | 29600 ksi |
Poisson’s ratio | 0.27-0.30 | 0.27-0.30 |
Elongation at break | 6% | 6% |
Hardness, Rockwell C | 38 | 38 |
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We ensures the highest quality for its stainless steel 17-7 pH bars through rigorous testing and certification. Each product undergoes a thorough evaluation, including tensile strength, corrosion resistance and hardness testing. Our breweries are certified by renowned industry standards, ensuring high performance and reliability in challenging applications.
17-7 PH round bars offer high strength and excellent fatigue resistance, ideal for aerospace, automotive, and industrial applications, providing durability and reliability in demanding conditions.
17-7 PH flat bars are known for their superior strength and fatigue resistance, suitable for aerospace and industrial components, offering excellent performance under high stress and temperature conditions.
17-7 PH square bars deliver high strength and stability, ideal for aerospace, automotive, and industrial applications, ensuring durability and performance in environments requiring resilience and reliability.
17-7 PH rectangular bars provide robust strength and fatigue resistance, used in aerospace and industrial applications where high performance and durability are essential, even under extreme conditions.
17-7 PH hexagonal bars offer excellent strength and fatigue resistance, perfect for aerospace and industrial uses, ensuring reliable performance and durability in high-stress and temperature environments.
17-7 PH T-bars provide high strength and corrosion resistance, suitable for structural support and critical aerospace components, ensuring durability and performance under challenging conditions.
Stainless Steel 17‑7 PH Bars are employed to make springs, precision fasteners, actuator rods, and aerospace hardware that demand both high strength and great fatigue resistance. Their resistance to stress corrosion cracking makes them ideal for marine and industrial pumping systems. They also find application in bushings, shafts, and missile parts that withstand cyclic loads and high stress. In defense and automotive uses, 17‑7 PH ensures consistent performance under mechanical and thermal stress. The formability and machinability of the alloy enable the production of complex shapes through manufacturing while maintaining corrosion resistance and structural integrity.
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