SS 15-5PH (UNS S15500 ) is indeed a precipitation-hardening martensitic stainless steel grade that contains alloying elements such as nickel, copper, and chromium. It is commonly used in the aerospace industry for fasteners and other structural components. The alloy is also known by its UNS designation, which is S15500.
The microstructure of SS 15-5PH is obtained through a remelting process, which helps refine the structure of the alloy. This refined structure contributes to the increased toughness of the material, making it more resistant to fracture and impact.
The precipitation-hardening process involves a heat treatment that allows the formation of fine precipitates within the martensitic matrix of the alloy. This contributes to the material's high strength, corrosion resistance, and excellent mechanical properties.
In the aerospace industry, SS 15-5PH is favored for its combination of strength, corrosion resistance, and toughness. It is used in applications such as fasteners, landing gear components, shafts, and structural parts, where high-performance materials are required to withstand extreme conditions.
STAINLESS STEEL ROUND BAR EQUIVALENT GRADES
| STANDARD | UNS | WNR. |
|---|---|---|
| SS 15-5PH | S15500 | 1.4545 |
CHEMICAL COMPOSITION OF STAINLESS STEEL ROUND BAR
| Grade | C | Cb+Ta | Cr | Cu | Fe | Mn | Ni | P | S | Si |
|---|---|---|---|---|---|---|---|---|---|---|
| SS 15-5 PH | 0.07 max | 0.15-0.45 max | 14.0-15.0 max | 2.5-4.5 max | Bal | 1.0 | 3.5-5.5 | 0.04 | 0.03 | 1.0 |
MECHANICAL PROPERTIES OF STAINLESS STEEL ROUND BAR
| Grade | Tensile Strength ksi (MPa) | Yield Strength 0.2% ksi (min) | Elongation % | Hardness (Rockwell) MAX |
|---|---|---|---|---|
| SS 15-5 PH | 161,000 | 140,000 | 7.6% | C35 |
SS Round Bar Application Industries Our Stainless Steel SS Round Bar are used in a wide range of applications and various industries. Below are a few of them:
Petrochemical Industry
Oil and Gas Industry
Chemical Industry
Power Plant Industry
Energy Industry
Pharmaceuticals Industry
Pulp & Paper Indusry
Food Processing Industry
Aerospace Industry
Refining Industry
| STANDARD | UNS | WNR. |
|---|---|---|
| SS 15-5PH | S15500 | 1.4545 |
| Grade | C | Cb+Ta | Cr | Cu | Fe | Mn | Ni | P | S | Si |
|---|---|---|---|---|---|---|---|---|---|---|
| SS 15-5 PH | 0.07 max | 0.15-0.45 max | 14.0-15.0 max | 2.5-4.5 max | Bal | 1.0 | 3.5-5.5 | 0.04 | 0.03 | 1.0 |
| Grade | Tensile Strength ksi (MPa) | Yield Strength 0.2% ksi (min) | Elongation % | Hardness (Rockwell) MAX |
|---|---|---|---|---|
| SS 15-5 PH | 161,000 | 140,000 | 7.6% | C35 |
