Percipitation Hardened Stainless Steel 11-10PH / 13-8PH / 15-5PH / 17-4 PH / 17-7PH / 08X14H7M / Custom 450, Custom 465 Products
17-4 Stainless Steel
17-4 stainless is martensitic stainless steel that gets stronger with age and is also resistant to corrosion. A short, simple, and low-temperature treatment are all it takes to make something harder. 17-4 is much easier to weld than most martensitic stainless steels, like type 410. Because it is strong, doesn’t rust, and is easy to work with, 17-4 stainless can be a cheaper alternative to high-strength carbon steels and other stainless grades.
When the metal is heated to 1900°F for solution treatment, its structure is austenitic, but when it cools to room temperature, its structure changes to a low-carbon martensitic structure. This change won’t be done until the temperature goes down to 90°F. The alloy gets stronger when it is heated to temperatures between 900 and 1150°F for one to four hours. This process of hardening also tempers the martensitic structure, making it more flexible and tough.
Common Trade Names
17-4 Stainless
Applications
Chemical Processing Equipment
Pump Shafts
Gears
Ball Bearings
Bushings
Fasteners
| ASTM | AMS | ASME |
| A564 | 5604 | SA564 |
| A693 | 5622 | SA693 |
| A705 | 5643 | SA705 |
| 5825 |
Physical Properties of 17-4
| Annealed | -H900 | |
| Density | 0.280 lb/in3 | 0.282 lb/in3 |
| Ultimate Tenslie Strength | 160 ksi | 210 ksi |
| Yield Tensile Strength | 145 ksi | 200 ksi |
| Fatigue Strength | N/A | 98 ksi |
| Shear Strength | N/A | 120 ksi |
| Shear Modulus | N/A | 11,000 ksi |
| Hardness Rockwell | Brinell | C36 | 363 | C40-47 | 388-444 |
| Elongation at Break Percentage | 6-15% | 12% |
| Reduction of Area | 30-60% | 35-40% |
| Modulus of Elasticity | N/A | 28,000 ksi |
| Poisson’s Ratio | 0.28 | 0.28 |
| Machinability Percentage | 45% | N/A |
| Melting Point | 2,550-2,620 °F | 2,550-2,620 °F |
| Specific Heat | 1.1 x 10^-1 BTU/lb-°F | 1.1 x 10^-1 BTU/lb-°F |
| Thermal Conductivity | 116 BTU-in/hr-ft^2-°F | 116 BTU-in/hr-ft^2-°F |
| Electrical Conductivity | 2.3% IACS | 2.3% IACS |
Chemistry Information
| Element | Percentage |
| C | 0.07 max |
| Cu | 3 – 5 |
| Cr | 15 – 17.5 |
| Fe | 73 |
| Mn | 1 max |
| Nb + Ta | 0.15 – 0.45 |
| Nb | 0.45 max |
| Ni | 3 – 5 |
| P | 0.04 max |
| S | 0.03 max |
| Si | 1 max |
| Ta | 0.45 max |
15-5 PH STAINLESS STEEL – AMS 5659
Common Trade Names
PH15-5
XM-12
UNS S15500
15Cr-5Ni
DIN X4CrNiCuNb164
X5CrNiCu15-5
DIN 1.4540
DIN 1.4545
SAE 15-5
Applications
Aerospace structural components
Valves
Gears and Shafts
Oil and Gas components
Nuclear reactor components
Chemical Composition:
| Carbon | 0.07 max |
| Manganese | 1.00 max |
| Phosphorus | 0.040 max |
| Sulfur | 0.030 max |
| Silicon | 1.00 max |
| Chromium | 14.00 – 15.50 |
| Nickel | 3.50 – 5.50 |
| Copper | 2.50 – 4.50 |
| Columbium plus Tantalum | 0.15 – 0.45 |
Mechanical Properties of 15-5PH
| Condition | Tensile | Yield 0.2% offset | Elongation (%in 2″) | Reduction of Area | Brinell Hardness | Rockwell Hardness |
| Ann | 363 Bhn | C33 | ||||
| H900 | 190,000 psi | 170,000 psi | 6% | 15% | 388 Bhn | C40 |
| H1025 | 155,000 psi | 145,000 psi | 8% | 27% | 331 Bhn | C35 |
| H1075 | 145,000 psi | 125,000 psi | 9% | 28% | 311 Bhn | C32 |
| H1150 | 135,000 psi | 105,000 psi | 11% | 30% | 277 Bhn | C28 |
| H1150-M | 115,000 psi | 75,000 psi | 14% | 35% | 255 Bhn | C25 |
Precipitation Stainless Steel 11-10 PH / 13-8 PH/ 15-5 PH / 17-4 PH / 17-7 PH / Custom 450 and 465 Rod & Bars
Precipitation Stainless Steel 11-10 PH / 13-8 PH/ 15-5PH / 17-4 PH / 17-7PH Hex Bar/ Custom 450 AND 465 UNS S15500 / S17400 Hex Bar
Precipitation Stainless Steel 11-10 PH / 13-8 PH / 15-5PH / 17-4 PH / 17-7PH Square Bar / Custom 450 and 465 Square Bar
Precipitation Stainless Steel 11-10 PH / 13-8 PH / 15-5PH / 17-4 PH / 17-7PH / Custom 450 and 465 Plates/Sheet
