Lork Group: Trusted 17-4PH Stainless Steel Plate Supplier For High-Strength Applications
Jun 25, 2025
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Premium 17-4PH Stainless Steel Plates for Demanding Environments
Lork Group is a leading global supplier of high-performance 17-4PH stainless steel plates, offering exceptional strength and corrosion resistance for critical industrial applications. Also known as Alloy 17-4, this precipitation-hardening martensitic stainless steel delivers superior mechanical properties combined with excellent corrosion resistance.
Key Features & Benefits
- High Strength & Hardness - Maintains exceptional tensile strength up to 316°C (600°F)
- Excellent Corrosion Resistance - Chromium-nickel composition provides superior oxidation resistance up to 593°C (1100°F)
- Precipitation Hardening - Can be heat treated to achieve desired mechanical properties
- Good Creep Resistance - Excellent stress-rupture properties up to 482°C (900°F)
- Versatile Fabrication - Suitable for machining, welding, and forming when properly heat treated
17-4PH Stockist Range
17-4PH Plate
6.35mm ~ 76.2mm
17-4PH Round Bar
6.35mm ~ 640mm
17-4PH Square Bar
70x70mm
17-4PH Sheet
4.0mm
For your high-strength stainless steel requirements, trust Lork Group's expertise in 17-4PH alloy. Contact our technical sales team today for competitive pricing and delivery options.
Physical Properties
| Density | g/cm³ | 7.82 |
| Melting Point | °F | 2560-2625 |
| °C | 1404-1440 | |
| Modulus of Elasticity at 20°C | MPa | 196000 |
| Thermal Conductivity at 20°C | W/m.K | 18.4 |
| Thermal Expansion | x10-6/K | 10.8 |
| Electrical Resistivity | 10-6Ω.m | 0.08 |
| Poisson's ratio | 0.272 |
Chemistry
| Nickel | Ni | 3.0-5.0 |
| Iron | Fe | Balance |
| Carbon | C | 0.7 Max |
| Silicon | Si | 1.0 Max |
| Manganese | Mn | 1.00 Max |
| Sulphur | S | 0.030 Max |
| Phosphorus | P | 0.040 Max |
| Chromium | Cr | 15.00-17.50 Max |
| Copper | Cu | 3.0-5.0 |
| Niobium | Nb | 0.15-0.45 |
Markets & Applications
- Aerospace manufacture (undercarriage components, fasteners, rocket fittings
- Paper mill equipment
- Nuclear waste casks and production
- Mechanical components such as: springs, screws, bolts, gears
- Chemical processing plants and oil and gas production
- Offshore and marine mechanical components
- Helicopter deck platforms and foils
Why Choose Lork Group?
- Multiple Form Availability - Plates, sheets, bars in various sizes
- Custom Heat Treatment - H900, H1025, H1075, H1100, H1150 tempers available
- Quality Assurance - Full compliance with ASTM A564, AMS 5604 standards
- Global Logistics - Reliable shipping to worldwide destinations
Whether you're looking for a bulk order of 17 4 PH stainless steel plate, or you need advice on which 17 4PH material would be right for your application, speak to Lork Group.
susan@lorkgroup.com
+8619937075488
https://www.lorkalloy.com/plate-and-sheet/stainless-steel-sheet/ams-5604-17-4-ph-sheet.html
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