17-4PH Stainless Steel Sheet
1. Thickness: 0.1mm - 150mm
2. Width: 1000 - 3300mm
3. Length: 1000 - 12000mm
4. Equivalent: UNS S17400, WNR.1.4542, AMS 5604, Type 630
17-4ph Stainless Steel Sheet is a chromium-nickel-copper precipitation-hardening martensitic stainless steel with the addition of niobium. It is resistant to temperatures up to 572°F (300°C) and is suitable for cryogenic service. SS 17-4ph plate is also known for its resistance to stress corrosion cracking and pitting. Alloy 17-4PH is resistant to common corrosive media such as acids, alkalis, salts and oxidants, comparable to 304 stainless steel plate, and generally superior to 400 series stainless steel plate. AMS 5604 Type 630 stainless steel is widely used in marine and aerospace industries, among other applications.
17-4ph Stainless Sheet Suppliers:
- Grade: 304, 304L, 316, 316L, 316Ti, 316L Mod, 17-4ph, 310, 310S, 317, 317L, 321, 321H, 347, 347H, 904L, 254SMO, 253MA, S32550, S32205, S31803, 2507, S31053, Etc.
- 17-4 PH: Fittings, flanges, forgings, fasteners, pipes, tubes, plates, sheets, strips, coils, bars, rods, etc.
SS 17-4PH Sheet Chemical Composition
| 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 | 15.0 - 17.5 | 3.0 - 5.0 | 5 X C / 0.45 | 3.0 - 5.0 |
| 0.03 S |
Material Alloy 17-4 PH Sheet Mechanical Properties
| 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 |
UNS S17400 Type 630 Stainless Steel Physical Properties
| Density | 0.280 lbs/in3 | 7.75 g/cm3 |
| Specific Heat | 0.11 BTU/lb-°F @ 70°F) | 460 J/kg-°C @ 20°C) |
| Modulus of Elasticity | 28.5 x 106 psi | 196 GPa |
| Thermal Conductivity 212°F (100°C) | 10.6 BTU/hr/ft2/ft/°F | 18.3 W/m-°K |
| Melting Range | 2560 – 2625°F | 1404 – 1440°C |
| Electrical Resistivity | 29.5 Microhm-in at 75°C | 75 Microhm-cm at 24°C |
17-4ph Steel Sheet Heat Treatment
| CONDITION | Temperature °F | Time, h | Quench |
| H900 | 900 | 4 | Air Cool |
| H1025 | 1025 | 4 | Air Cool |
| H1075 | 1075 | 4 | Air Cool |
| H1150 | 1150 | 4 | Air Cool |
| H1150M | 1400 for 2 h, air cool plus 1150 for 4 h, air cool | ||
| H1150D | 1400 for 2 h, air cool plus 1150 for 4 h, air cool | ||
Available Thicknesses for Alloy 17-4PH Stainless Steel Plates
| 3/16" | 1/4" | 5/16" | 3/8" | 7/16" | 1/2" | 9/16" | 5/8" | 3/4" | 7/8" | 1" |
| 4.8mm | 6.3mm | 7.9mm | 9.5mm | 11.1mm | 12.7mm | 14.3mm | 15.9mm | 19mm | 22.2mm | 25.4mm |
| 1 1/8" | 1 1/4" | 1 1/2" | 1 3/4" | 2" | 2 1/4" | 2 1/2" | 2 3/4" | 3" | 3 1/2" | 4" |
| 28.6mm | 31.8mm | 38.1mm | 44.5mm | 50.8mm | 57.2mm | 63.5mm | 69.9mm | 76.2mm | 88.9mm | 101.6mm |
WNR.1.4542 Stainless Steel Welding Performance
Alloy 17-4PH can be easily welded by most standard processes, including SMAW, GTAW, PAW and GMAW.
Key Features & Benefits
High Mechanical Strength: Yield strengths up to 170 ksi (1170 MPa) after precipitation hardening (H900 condition).
Corrosion Resistance: Performs exceptionally well in atmospheric environments, diluted acids, and salts; superior to standard 400-series martensitic stainless steels.
Ease of Fabrication: Supplied in Condition A (Solution Annealed) for simplified machining and cold working before heat treatment.
Low Distortion Heat Treatment: Single-step, low-temperature aging process minimizes scaling and thermal distortion.
Stock Range & Processing Capabilities
We maintain an inventory of 17-4PH sheets and heavy plates ready for immediate dispatch or custom processing:
Thickness Range:
- 17-4PH Sheet: 0.5mm – 6.0mm (0.020" – 0.236")
- 17-4PH Plate: 6.0mm – 100mm+ (0.250" – 4.000"+)
Width: 1000mm, 1220mm, 1500mm, 2000mm, or custom sheared width
Length: 2000mm, 2440mm, 3000mm, 6000mm, or cut-to-length
Surface Finishes: 2B, No.1 (HR), No.4 Satin, BA
Value-Added Processing: Waterjet Cutting, Laser Cutting, Plasma Cutting, Surface Grinding, and Custom Beveling
Common Applications
Aerospace & Defense: Structural airframe components, fastener hardware, jet engine parts.
Oil & Gas / Chemical Processing: Pump shafts, valve seats, offshore platform equipment, nuclear reactor components.
Paper & Pulp Mills: Hydrocyclones, paper mill equipment.
Marine & Medical: High-strength marine fittings, surgical instruments.
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