15-5 PH STAINLESS STEEL – AMS 5659
It has high strength, high hardness, and excellent corrosion resistance.
15-5 PH stainless steel is a martensitic precipitation-hardening stainless steel with approximately 15% Chromium and 5% Nickel. Strength can be further increased by a single low temperature heat treatment. Compared to 17-4 PH, it offers better transverse toughness and ductility; better mechanical properties in larger cross-sections, and better forgeability. It is readily weldable. It can be machined in any of the several Thermal Conditions available to this grade.
Service Steel Aerospace is one of the largest distributors / suppliers of 15-5 PH Stainless Steel available in several forms including stainless steel round bar, flat bar, and square bar as well as stainless steel plate, sheet, block, and billet. See below for product size ranges stocked.
<<15-5 PH STAINLESS STEEL – AMS 5659 DATA SHEET>>
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:
| 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 |
15-5 PH stainless steel is typically used in the following applications:
Aerospace structural components
Valves
Gears and Shafts
Oil and Gas components
Nuclear reactor components
Common Trade Names:
PH15-5
XM-12
UNS S15500
15Cr-5Ni
DIN X4CrNiCuNb164
X5CrNiCu15-5
DIN 1.4540
DIN 1.4545
SAE 15-5
Common Specifications:
AMS 5659 (Bar & Forgings)
AMS 5862 (Plate)
ASTM A564 (Grade XM-12)
ASTM A705 (Grade XM-12)
ASME SA564
Boeing BMS 7-240
Boeing BMS 7-351
SPP Canada Aircraft SPPCA-EN-SOW-0036 (Capability)
Liebherr LAT 1-9037
AMS-STD-2154 (Ultrasonic Inspection)
AMS Specifications have two types:
Type 1: VAR (Vacuum Arc Remelt) or CEVM (Consumable Electrode Vacuum Melt)
Type 2: ESR (Electroslag Remelt)
Heat Treatment:
H900
H925
H1025
H1075
H1100
H1150
Double H1150
H1150M (Modified)
