17-4PH Stainless Steel Plate
17-4PH stainless steel plate combines high strength, excellent toughness and good corrosion resistance
As a leading China 17-4PH stainless steel plate supplier, SEATHER manufactures and produces different thickness and width of 17-4PH, UNS S17400, 630 stainless steel plate.
17-4PH stainless steel plate, also known as UNS S17400/630 precipitation hardening stainless steel plate, is a martensitic stainless steel alloy containing copper and niobium/columb.
Through heat treatment, the mechanical properties of the plate product can be significantly improved, achieving a remarkable compressive strength ranging from 1100 to 1300 Mpa (160-190 ksi).
With a comprehensive inventory of standard thicknesses and dimensions available, SEATHER can provide rapid delivery to meet urgent project requirements.
As an ISO-certified supplier, we are committed to delivering high-quality, corrosion-resistant, and heat-resistant alloy materials to clients worldwide.
17-4PH Stainless Steel Plate Specifications and Srtandard
| Product Name | 17-4PH Stainless Steel Sheets Plates |
| Grades | 17-4PH/630/UNS S17400 |
| Standards | JIS, AISI, ASTM, GB, DIN, EN, etc. |
| Thickness | 0.1mm-50.0mm |
| Width | 500mm-2000mm |
| Length | 1000mm-6000mm |
| OEM/ODM | Customized size is available as your request |
| Quantity Tolerance | ±10% |
| Surface Finish | 2B, 2D, 2H, NO.4, No.1,1D, Pickled or as per demand |
| Applications | Stainless Steel Plates are ideally suited for high temperature applications |
| Packaging | Wooden pallet/Wooden case |
| Payment Terms | 30% TT deposit and 70% balance before shipment, 100% LC at sight |
| Delivery Time | 7-10 working days |
| MOQ | 500 Kgs |
| Shipping Port | Shanghai/Ningbo port |
| Sample | The sample of Stainless Steel Plates is available |
| Remark | Stainless Steel Plates can be customized |
17-4PH Stainless Steel Plate Applications and Usages
- Oil field equipment
- Chemical process equipment
- Fittings and pump shafts
- Gears
- Paper mill equipment
- Aircraft parts
- Flanges and valves
- Other Precision Parts
17-4PH Stainless Steel Plate Drawing and Formula
Formula: m = W (m) × THK (mm) × L (m) × ρ (g/cm³)
W = Width, THK = Thickness, L = Length, ρ = Density
What is 17-4PH Stainless Steel
17-4PH precipitation hardening martensitic stainless steel, also known as UNS S17400 or Type 630, belongs to the family of martensitic stainless steels. This alloy contains approximately 15-17.5% chromium, 3-5% nickel, and 3-5% copper, with iron as the base element. Engineers and manufacturers often refer to it as 17-4 ph stainless steel or grade 17-4 stainless steel. The term “precipitation hardening” describes the process that gives this steel its remarkable strength and hardness. By using a series of heat treatments, manufacturers create fine particles within the steel’s structure. These particles, called precipitates, block the movement of dislocations and increase the material’s mechanical properties.
The development of 17-4 ph stainless steel began in the early 20th century. William J. Kroll’s research on precipitation hardening paved the way for Armco to introduce this alloy in 1948. The first applications appeared in aerospace, where engineers needed materials that could withstand high stress and resist corrosion. Over time, grade 17-4 stainless steel became a standard choice for critical components in industries such as nuclear power, oil and gas, and marine engineering.
17-4PH Stainless Steel Plate Chemical Composition
The chemical components of grade 17-4PH stainless steel is summarized in the following table:
| C | Si | Mn | P | S | Cr | Ni | Cu | Nb |
| 0.07 max | 1.00 max | 1.00 max | 0.040 max | 0.030 max | 15.00~17.50 | 3.0~5.0 | 3.0~5.0 | 0.15~0.45 |
17-4PH Stainless Steel Plate Mechanical Properties
The mechanical properties of grade 17-4PH/630 stainless steel plate is summarized in the following table:
| Property | A | H 900 | H 925 | H 1025 | H 1075 | H 1150 | H 1150-M |
| UTS | 1103 | 1448 | 1379 | 1276 | 1207 | 1103 | 1034 |
| 0.2% YS | 1000 | 1379 | 1345 | 1172 | 1148 | 1034 | 896 |
| Elongation % in 50mm | 5 | 7 | 8 | 8 | 8 | 11 | 12 |
| Hardness (rockwell) | C35 | C45 | C43 | C38 | C37 | C35 | C33 |
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Seather provides some of the best solutions ranging from custom metal welding and related services.
More Information About 17-4PH Stainless Steel Plate
When you choose to buy 17-4PH Stainless Steel plate, there have some important points we need to know before we get started.
Features of 17-4PH Stainless Steel Plate
Exceptional Mechanical Strength: 17-4PH delivers superior tensile and yield strength, particularly when heat-treated to the H900 condition. Its structural integrity makes it the preferred alloy for heavy-duty, high-stress industrial applications.
Optimized Machinability: In its solution-annealed state, this precipitation-hardening alloy offers excellent workability. This allows for faster machining speeds and more efficient part fabrication compared to other hardenable stainless steels.
Superior Corrosion Resistance: 17-4PH provides robust protection against atmospheric corrosion and harsh chemical environments, offering durability comparable to 304 stainless steel with higher strength.
Versatile Weldability: The alloy supports standard fusion welding methods in the annealed condition. Mechanical properties are easily restored and optimized through standard post-weld heat treatment.
How to Purchase 17-4PH Stainless Steel Plate
When purchasing sheets plates, it’s essential to have the right materials and information to ensure a smooth procurement process and to get the products that meet your needs.
Here’s what you need to provide:
1. Material: Specify the grade material, 17-4PH
2. Size: Specify the plate’s thickness, width, length
3. Quantity: Provide the exact number of plates required for an accurate quotation.
4. Technical specifications: Include technical specifications and drawings. If there are unique design requirements, detailed drawings can be attached.
5. Quality standards: Specify quality standards and inspection requirements, such as the need for third-party inspection, material certification, and inspection reports.
6. Special requirements: Specify any special surface treatment, polishing, corrosion resistance requirements, etc.
7. Packaging requirements: If there are specific packaging needs, such as protective or anti-corrosion packaging, please specify.
8. Delivery time: Specify the expected delivery time and location.
By preparing the above information, you can streamline the process of purchasing plates and ensure that you receive high-quality products that meet your requirements.
17-4PH Stainless Steel Plate Standards Comparison Table
| STANDARD | SS 17-4PH |
| WERKSTOFF NR. | 1.4542 |
| UNS | S17400 |
| JIS | SUS 630 |
| BS | / |
| KS | / |
| AFNOR | / |
| EN | / |
17-4PH Stainless Steel Plate Packaging
- Standard export packaging:
Waterproof Paper Winding+PVC Film+Strap Banding+Wooden Pallet or Wooden Case; - Customized packaging as your request (Logo or other contents accepted to be printed on the packaging);
- Other special packaging will be designed as customer’s request;
- Eye to wall and eye to sky are both available;
- By International Express: DHL/UPS/FEDEX/EMS and our own express line;
- By air or By sea;
- Shipping port: Shanghai, Ningbo or as your request.
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