17-7pH Precipitation Hardening Stainless Steel Plate
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Are you looking for a high-strength stainless steel plate that offers excellent corrosion resistance and superior mechanical performance? If your project demands durability, fatigue resistance, and precision, the 17-7PH precipitation hardening stainless steel plate is an ideal choice. Widely used in aerospace, chemical, and engineering applications, 17-7PH plate combines versatility with outstanding performance.
What Is 17-7PH Stainless Steel Plate?
17-7PH Stainless Steel Plate is a precipitation-hardening (PH) stainless alloy known for its high strength, hardness, excellent fatigue resistance, and good corrosion properties, offering superior performance to standard stainless steels, especially after heat treatment, making it ideal for demanding aerospace, medical, and spring applications where both strength and formability are needed. It's a semi-austenitic steel that's easily formed when annealed and then hardened to high strength levels through controlled heat treatments (like RH950 or TH1050), with minimal distortion.
Chemical Composition
| Element | C | Mn | Si | Cr | Ni | Fe | Al | Nb |
|---|---|---|---|---|---|---|---|---|
| % | ≤0.07 | ≤1.00 | ≤1.00 | 16.0–18.0 | 6.0–7.0 | Balance | 0.20–0.80 | 0.40–0.70 |
Standard references: ASTM A693, JIS SUS630, GB/T 4237
Mechanical Properties
| Property | Solution Treated | Aged (H900) |
|---|---|---|
| Tensile Strength (MPa) | 930 | 1380 |
| Yield Strength (MPa) | 620 | 1240 |
| Elongation (%) | 18 | 12 |
| Hardness (HRB / HRC) | 88 HRB | 42 HRC |
Available Sizes
Thickness: 0.5 mm – 100 mm
Width: 1000 mm – 2000 mm, customizable
Length: Cut-to-size according to project requirements
17-7PH Stainless Steel Plate Applications
Aerospace structural components
Springs, fasteners, and precision parts
Chemical processing equipment
Medical devices and surgical instruments
High-performance engineering machinery
Why Choose Gnee for 17-7PH Stainless Steel Plates
At Gnee, we specialize in high-quality 17-7PH precipitation hardening stainless steel plates that comply with ASTM, JIS, GB, and EN standards. Our plates are certified by ISO, SGS, and BV, ensuring reliability for aerospace, chemical, and engineering applications.
We offer:
Custom cutting and slitting
Surface polishing and finishing
Heat treatment and aging services
Rapid delivery and technical support
Enhance your project's performance with premium 17-7PH stainless steel plates from Gnee - engineered for strength, durability, and precision.
FAQ
Q1: What is the difference between 17-7PH and 17-4PH stainless steel plates?
A1: 17-7PH offers higher fatigue resistance and stress corrosion cracking resistance, making it better for high-stress applications, while 17-4PH is slightly easier to machine.
Q2: Can 17-7PH plates be welded?
A2: Yes, standard welding techniques can be used, but post-weld aging is recommended to restore maximum strength and corrosion resistance.
Q3: How should I choose the right thickness and width for my project?
A3: Thickness depends on load requirements; width and length can be customized. Contact our technical team for project-specific recommendations.
Q4: What surface finishes are available?
A4: Common finishes include 2B, BA, No.1, No.4, and custom polishing options.
