Technical Data Sheet
17-4 PH Stainless Steel is a martensitic, precipitation-hardening stainless steel that provides an outstanding combination of high strength and hardness along with excellent corrosion resistance. 17-4 PH has good fabricating characteristics and can be age hardened by a single step, low temperature treatment. 17-4 PH is a versatile material typically used in the aerospace, chemical, petrochemical, food processing, paper and general metalworking industries.
Corrosion Resistance
17-4 PH Stainless Steel withstands corrosive attack better than any of the standard hardenable stainless steels and is comparable to Type 304 in most media.
Formability
In Condition A, 17-4 PH is hard, therefore forming normally should be limited to mild operations. However, formability can be greatly improved by heat treating before cold working or by use of hot-forming methods.
| Chemical Composition Limits | ||||||||
| Weight% | C | Si | Mn | P + S max | Cr | Ni | Cb + Ta | Cu |
| AMS 5604 17-4PH | 0.07 max | 1.0 max | 1.0 max | 0.04 P 0.03 S |
15.0 – 17.5 | 3.0 – 5.0 | 5 X C / 0.45 | 3.0 – 5.0 |
Typical Mechanical Properties
Material Alloy 17-4 PH Bar (AMS 5643)
| Condition |
Ultimate Tensile Strength (ksi) | 0.2 % Yield Strength (ksi) | Elongation % in 2D | % Reduction of Area | Rockwell C Hardness |
| Cond A | – | – | – | – | 39 max |
| H900 | 190 | 170 | 10 | 40 | 40-47 |
| H925 | 170 | 155 | 10 | 44 | 38-45 |
| H1025 | 155 | 145 | 12 | 45 | 34-42 |
| H1075 | 145 | 125 | 13 | 44 | 31-38 |
| H1100 | 140 | 115 | 14 | 45 | 30-37 |
| H1150 | 135 | 105 | 16 | 50 | 28-37 |
Material Alloy 17-4 PH Sheet/Bar (AMS 5604)
| Condition |
Ultimate Tensile Strength (ksi) | 0.2 % Yield Strength (ksi) | Elongation % in 2D (Values are for sheet <0.1874" thick) | % Reduction of Area | Rockwell C Hardness |
| Cond A | – | – | – | – | 38 max |
| H900 | 190 | 170 | 5 | – | 40-47 |
| H925 | 170 | 155 | 5 | – | 38-45 |
| H1025 | 155 | 145 | 5 | – | 35-42 |
| H1075 | 145 | 125 | 5 | – | 33-39 |
| H1100 | 140 | 115 | 5 | – | 32-38 |
| H1150 | 135 | 105 | 8 | – | 28-37 |
Availability
17-4 PH is available in Bar, Wire, Forgings, Tube, Rings, Powder, Plate, Sheet, Strip and Welding Wire. View Stock List, Plate Stock List or contact Sales for further availability.
NEW – Aircraft Materials now offers a comprehensive range of high-quality 17-4PH metal powders, produced and tested to exacting standards for use in all processes including Additive Manufacturing (AM), Near-Net Shape Powder Metallurgy (NNS/PS) and Hot-Isostatic Pressing (HIP). Find out more email us with your quality 17-4PH metal powder requirements: [email protected]
Specifications
AMS 5604 Sheet, Strip Cold Rolled and Plate.
AMS 5622 (Vac Melt) Bars (Flat, Hex, Round, Square), Wire, Forgings, Tubing and Rings
AMS 5642 Bar
AMS 5643 Bars (Flat, Hex, Round, Square), Wire, Forgings, Tubing and Rings
AMS 7012 Powder
MIL-S-25043
ASTM A564 Grade 630
ASTM A484 / ASME SA484
ASTM A564 / ASME SA564
ASTM A693 / ASME SA693 Plate, Sheet and Strip
ASTM A56 Powder
WS 1.4542
X5CrNiCuNb16-4
AFNOR Z6CNU1704
UNS S17400