General Information
Chemical Composition
Physical Properties
Mechanical Properties
General Information
Stainless Steel 15-5 is a precipitation hardening martensitic stainless steel designed to have a greater toughness than 17-4 ph stainless steel. It is used in applications requiring better corrosion resistance and transverse properties compared to other similar martensitic grades. Strength and toughness desired can be altered by temperate range in the heat treatment process.
15-5 stainless steel is a martensitic, precipitation-hardening material with chromium, nickel and copper. It is often a first choice in the aerospace industry for fasteners and structural components. Its unique structure provides increased toughness and better corrosion resistance than its predecessor, 17-4 PH. Both inclusion control and a minimized amount of delta ferrite as compared to 17-4 stainless steel contribute to the greater toughness of 15-5.
Common Trade Names
- 15-5 PH
- AK Steel 15-5 PH®
- ATI 15-5™
- ATI 15-5-MIL™
Common Applications of 15-5 PH
- Aerospace applications
- Fasteners
- Oil & Gas applications
- Power generation
- Valves, gears and pumps
- Food processing
Backed by Industry Standards
- UNS S15500
- AMS 5659
- ASTM A564
Chemical Composition
15-5 PH Chemical Composition
Element
Percent by Weight
C
Carbon
0.07 maximum
Cr
Chromium
14 – 15.5
Cu
Copper
2.5 – 4.5
Fe
Iron
Balance
Si
Silicon
1.00 maximum
S
Sulfur
0.03 maximum
Ni
Nickel
3.5 – 5.5
Mn
Manganese
1.0 maximum
P
Phosphorus
0.04 maximum
NbTa
Niobium plus Tantalum
0.15 – 0.45
Physical Properties
15-5 Physical Properties
| Condition | A | H900 | H1075 | H1150 | |
| Density g/cm (3) | 7.75 | 7.81 | 7.83 | 7.86 | |
| Density lb/in (3) | 0.280 | 0.282 | 0.283 | 0.284 | |
| Thermal Conductivity 70-212° | 10.6 | 10.3 | |||
| Thermal Conductivity 70-932° | 13.1 | 13.1 | |||
| Electrical Resistivity | 98 | 77 | 80 | 86 | |
Mechanical Properties
15-5 Mechanical Properties
| Condition | Ultimate Tensile Strenght |
Yield Strength |
Elongation | Reduction of Area |
Hardness Brinell |
Hardness Rockwell |
| H900 | 190, 000 |
170, 000 |
6 | 15 | 388 | C40 |
| H1025 | 155, 000 |
125, 000 |
8 | 27 | 331 | C32 |
| H1075 | 145, 000 |
125, 000 |
9 | 28 | 311 | C32 |
| H1150 | 135, 000 |
105, 000 |
11 | 30 | 277 | C28 |
| H1150-M | 115, 000 |
5,000 | 14 | 35 | 255 |
- 15-5 PH Pipes
- 15-5 PH Fittings
- 15-5 PH Bars
- 15-5 PH Sheets & Plates
- 15-5 PH Coils & Strips
- 15-5 PH Wires

15-5 PH Seamless Pipe
Standard: ASTM, JIS, DIN, EU…
Grade: 15-5 PH…
Size: OD: Φ4-Φ1219mm; WT:…
Introduction: Wisine its production capacity of stainless steel seamless pipe, roughly 2100 tons per month. As per your requirement…
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15-5 PH Sanitary Tube
Standard: ASTM, JIS, DIN, EU…
Grade: 15-5 PH…
Size: OD: Φ8-Φ850mm; WT:…
Introduction: Wisine produces sanitary tubes that are widely applicable to food & beverage industry, pharmaceutical industry…
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15-5 PH Thick-walled Pipe
Standard: ASTM, JIS, DIN, EU…
Grade: 15-5 PH…
Size: OD: Φ10-Φ1219mm; WT:…
Introduction: Thick-walled stainless steel pipe, also named stainless steel hollow bar, are usually used for mechanical applications or…
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15-5 PH Welded Pipe
Standard: ASTM, JIS, DIN, EU…
Grade: 15-5 PH…
Size: OD: Φ6-Φ2800mm; WT:…
Introduction: Wisine produces welded stainless steel pipe in different shapes: round, square and rectangle. In comparison with seamless pipe…
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15-5 PH Square Pipe
Standard: ASTM, JIS, DIN, EU…
Grade: 15-5 PH…
Size: Side Length: 4×4-300×300mm…
Introduction: As per your requirement, stainless steel square pipe can be made into welded stainless steel square pipe or…
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15-5 PH Rectangle Pipe
Standard: ASTM, JIS, DIN, EU…
Grade: 15-5 PH…
Size: Side Length: 4×6-200×400…
Introduction: Stainless steel rectangle pipe is hollow stainless steel long product and can be classified into seamless and welded…
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15-5 PH Capillary Tube
Standard: ASTM, JIS, DIN, EU…
Grade: 15-5 PH…
Size: OD: Φ0.4-Φ16.0mm; WT:…
Introduction: Wisine produces stainless steel capillary with different finishes for your option. Quite common in our international markets…
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15-5 PH Coil Tube
Standard: ASTM, JIS, DIN, EU…
Grade: 15-5 PH…
Size: OD: Φ0.4-Φ16mm; WT:…
Introduction: Stainless steel coil tubes refer to those tubes with diameter ranging from 0.5mm to 20mm and wall thickness from…
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15-5 PH Elbow
Standard: ASTM, JIS, DIN, EU…
Grade: 15-5 PH…
Outer Diameter: DN15 – DN600…
Wall Thickness: Sch5S- Sch160…
Classification: 45° elbow, 90° elbow, 180° elbow, long radius elbow, short radius elbow…
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15-5 PH Flange
Standard: ASTM, JIS, DIN, EU…
Grade: 15-5 PH…
Outer Diameter: DN6 – DN750…
Wall Thickness: Sch5S-Sch160S…
Classification: SW (Socket Welding) flange, WN (Welding Neck) flange, SO (Slip-On) flange…
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15-5 PH Tee
Standard: ASTM, JIS, DIN, EU…
Grade: 15-5 PH…
Outer Diameter: DN15 – DN750…
Wall Thickness: Sch5S-Sch160…
Classification: Straight tee, reducing tee…
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15-5 PH Cross
Standard: ASTM, JIS, DIN, EU…
Grade: 15-5 PH…
Outer Diameter: DN15 – DN1200…
Wall Thickness: Sch5S-Sch160…
Classification: Straight cross, reducing cross…
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15-5 PH Reducer
Standard: ASTM, JIS, DIN, EU…
Grade: 15-5 PH…
Outer Diameter: DN15 – DN500…
Wall Thickness: Sch5S-Sch160…
Classification: Concentric reducer, eccentric reducer…
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15-5 PH Pipe Cap
Standard: ASTM, JIS, DIN, EU…
Grade: 15-5 PH…
Outer Diameter: DN15 – DN1200…
Wall Thickness: Sch5S- Sch160…
Classification: Hemispherical cap, elliptical/oval cap, dish cap, spherical cap…
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15-5 PH Round Bar
Standard: ASTM, JIS, DIN, EU…
Grade: 15-5 PH…
Size: Diameter: 2mm – 600mm…
Introduction: Stainless steel round bars are categorized as both long products and bar materials. SS round bar is long stainless steel product…
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15-5 PH Flat Bar
Standard: ASTM, JIS, DIN, EU…
Grade: 15-5 PH…
Size: Thickness: 0.5mm – 200mm…
Introduction: Stainless steel flat bars are of rectangle shape with root face (or round edges) and they can be semi-finished or finished…
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15-5 PH Angle Bar
Standard: ASTM, JIS, DIN, EU…
Grade: 15-5 PH…
Size: Equal Angle Bar Dimensions…
Introduction: Stainless steel angle bars are L-shape bars with two side widths perpendicular to each other. The two widths can be equal…
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15-5 PH Square Bar
Standard: ASTM, JIS, DIN, EU…
Grade: 15-5 PH…
Size: Dimensions: 2mmx2mm – …
Introduction: Stainless steel square bars are long stainless steel products with its cross section as square. At Wisine, we produce SS square…
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15-5 PH Hexagon Bar
Standard: ASTM, JIS, DIN, EU…
Grade: 15-5 PH…
Size: Dimension: 3mm – 180mm…
Introduction: Stainless steel hex bar is solid stainless steel long product with its cross section as hexagonal. Wisine produce stainless…
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15-5 PH Channel Bar
Standard: ASTM, JIS, DIN, EU…
Grade: 15-5 PH…
Size: Hot Rolled: 40mmx80mmx…
Introduction: Stainless steel channel bar is stainless steel long product with its section as U shape. At Wisine, apart from stainless steel…
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15-5 PH Sheet
Standard: ASTM, JIS, DIN, EU…
Grade: 15-5 PH…
Size: Thickness: ≤ 5mm…
Introduction: In Wisine, we refer to thickness below 5mm as stainless steel sheets and thickness above 5mm as SS plates…
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15-5 PH Plate
Standard: ASTM, JIS, DIN, EU…
Grade: 15-5 PH…
Size: Thickness: ≥ 5mm…
Introduction: In Wisine, we regard thickness above (includes) 5mm as stainless steel plates. Our stainless steel plates are hot rolled…
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15-5 PH Coil
Standard: ASTM, JIS, DIN, EU…
Grade: 15-5 PH…
Size: Width: ≥ 610mm…
Introduction: Our stainless steel coils are primary quality coils from the origin of Baosteel, ZPSS, TISCO, JISCO, ATI, SMC, HAYNES…
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15-5 PH Strip
Standard: ASTM, JIS, DIN, EU…
Grade: 15-5 PH…
Size: Width: ≤ 610mm…
Introduction: Stainless steel strip has its width less than 610mm, with its thickness ranging from 0.02mm to 6mm. For width over 610mm…
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15-5 PH Wire
Standard: ASTM, JIS, DIN, EU…
Grade: 15-5 PH…
Size: Diameter: 0.02mm-25mm…
Introduction: Wisine produces high quality wire and stainless steel wire rope. Our annual production capacity is roughly 8000 tons…
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15-5 PH Wire Rod
Standard: ASTM, JIS, DIN, EU…
Grade: 15-5 PH…
Diameter: Hot rolled wire rod:…
Weight: ≤500Kg per roll
Tolerance: H9, H11
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15-5 PH Wire Rope
Standard: ASTM, JIS, DIN, EU…
Grade: 15-5 PH…
Size: Φ0.15mm-Φ50mm…
Introduction: Wisine produces high quality wire and stainless steel wire rope. Our annual production capacity is roughly 8000 tons…
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