High Strength 17-4PH S17400 Stainless Steel Coil with Precipitation Hardening and Corrosion Resistance for Aerospace and Marine Applications
1.4542 17-4PH S17400 Stainless Steel Coil is a high-performance precipitation hardening stainless steel designed for applications requiring high mechanical strength, excellent corrosion resistance, and dimensional stability.
Also identified as X5CrNiCuNb16-4 according to DIN standards, AISI 17-4PH and UNS S17400, this stainless steel combines the advantages of martensitic stainless steel and age-hardening technology.
Key Features:
- Extremely high strength after aging treatment
- Excellent resistance to stress corrosion cracking
- Good weldability and machinability
- Stable performance under heavy loads
- Good oxidation resistance at elevated temperatures
- Suitable for precision mechanical components
17-4PH precipitation hardening stainless steel provides specialized solutions for demanding applications where traditional stainless steel grades face limitations.
High Strength Structure:
17-4PH obtains superior mechanical properties through copper-rich precipitation during aging treatment, achieving very high strength without sacrificing corrosion resistance.
Corrosion Resistant Alloy Design:
Balanced alloy composition including Chromium for corrosion protection, Nickel for toughness, Copper for precipitation strengthening, and Niobium for structural stability.
Aerospace Component Solution:
Widely selected for aerospace parts requiring high reliability with advantages including high strength-to-weight ratio, excellent fatigue resistance, and good dimensional stability.
Typical applications:
- Aircraft fittings
- Engine components
- Structural fasteners
- Precision aerospace parts
Oil & Gas Equipment Solution:
Provides excellent mechanical strength and corrosion resistance for oilfield and energy applications.
Applications:
- Valve bodies
- Pump shafts
- Oilfield tools
- Pressure components
Marine Engineering Solution:
Performs well in marine atmospheres and freshwater environments with good seawater resistance, high load-bearing capability, and extended service life.
| Parameter | Details |
|---|---|
| Product Name | 1.4542 17-4PH S17400 Stainless Steel Coil |
| Material Number | 1.4542 |
| DIN Standard | X5CrNiCuNb16-4 |
| AISI Standard | 17-4PH |
| UNS Number | S17400 |
| Material Type | Martensitic Precipitation Hardening Stainless Steel |
| Product Form | Coil / Plate / Sheet |
| Width Range | 1000mm - 3000mm |
| Length Range | 1000mm - 12000mm |
| Standards | ASTM / DIN / GB / JIS / BS |
| Element | Requirement |
|---|---|
| Carbon (C) | ≤0.07 |
| Silicon (Si) | ≤0.70 |
| Manganese (Mn) | ≤1.50 |
| Chromium (Cr) | 16.00 |
| Nickel (Ni) | 4.00 |
| Copper (Cu) | 3.50 |
| Niobium (Nb) | Added |
| Condition | Yield Strength | Tensile Strength | Elongation |
|---|---|---|---|
| H900 | 1170 MPa | 1310 MPa | 10% |
| H1025 | Approx. 1070 MPa | Approx. 1170 MPa | 10% |
| H1150 | Approx. 795 MPa | Approx. 965 MPa | 14% |
Select According to Working Environment:
| Working Condition | Recommended Treatment |
|---|---|
| Maximum strength requirement | H900 |
| Balanced strength and toughness | H1025 |
| Marine environment | H1150 |
| Heavy machinery | H1150M |
Confirm Before Purchase:
Customers should provide required thickness, width and length, heat treatment condition, surface requirement, inspection standard, and application environment. Customized production is available for special engineering projects.
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