Are you looking for a 17-7PH precipitation hardening stainless steel plate supplier that delivers consistent quality, fast lead times, and reliable service?Our 17-7PH stainless steel plates are engineered for applications that demand high strength, corrosion resistance, and dimensional stability, making them a preferred choice for aerospace, precision manufacturing, and high-performance industrial components.
🔹What Is 17-7PH Stainless Steel Plate?
17-7PH stainless steel plate (UNS S17700 / DIN 1.4568) is a semi-austenitic precipitation-hardening alloy known for its high strength, high hardness, excellent fatigue resistance, and good corrosion resistance. It is commonly used in aerospace, springs, and industrial applications requiring minimal distortion during heat treatment, and maintains excellent performance at temperatures up to 900°F (482°C).
🔹Chemical Composition
The chemical composition of stainless steel grade 17-7 PH is outlined in the following table.
| Element | Content (%) |
|---|---|
| Chromium, Cr | 16-18 |
| Nickel, Ni | 6.50 - 7.75 |
| Manganese, Mn | 1 max |
| Silicon, Si | 1 max |
| Aluminum, Al | 0.75 - 1.50 |
| Carbon, C | 0.09 max |
| Phosphorous, P | 0.040 max |
| Sulfur, S | 0.030 max |
| Iron, Fe | Balance |
🔹Physical Properties
The physical properties of stainless steel grade 17-7 PH are tabulated below.
| Properties | Metric | Imperial |
|---|---|---|
| Density | 7.80 g/cm3 | 0.282 lb/in3 |
🔹Mechanical Properties
The following table shows mechanical properties of stainless steel grade 17-7 PH (TH1050, bar and forgings).
| Properties | Metric | Imperial |
|---|---|---|
| Tensile strength | 1170 MPa | 170000 psi |
| Yield strength | 965 MPa | 140000 psi |
| Modulus of elasticity | 204 GPa | 29600 ksi |
| Poisson's ratio | 0.27-0.30 | 0.27-0.30 |
| Elongation at break | 6% | 6% |
| Hardness, Rockwell C | 38 | 38 |
🔹Thermal Properties
The thermal properties of stainless steel grade 17-7 PH are given in the following table.
| Properties | Metric | Imperial |
|---|---|---|
| Thermal conductivity | 16.4 W/mK | 114 BTU in/hr.ft2.°F |
| Thermal expansion co-efficient (@0.000-100°C/32-212°F) | 11 µm/m°C | 6.11 µm/m°C |
🔹17-7PH Stainless Steel Plate Price per Kg
GNEE supplies high-quality 17-7PH (UNS S17700/AISI 631/DIN 1.4568) precipitation-hardening stainless steel plates, fully compliant with ASTM A693 and AMS 5529 standards. The current price is US$19.5-28.8 per kilogram (FOB China, January 2026), with prices flexibly adjusted based on plate thickness, heat treatment condition, and order quantity. Plate thickness ranges from 1-100 mm, width from 1000-2000 mm, and length from 2000-6000 mm. Custom heat treatment conditions such as CH900/RH950/TH1050/CHD900 are available.
🔹Why Choose GNEE for 17-7PH Stainless Steel Plate?
We supply 17-7PH stainless steel plates globally, serving Europe, North America, the Middle East, and Southeast Asia with consistent quality and timely delivery.
GNEE strictly controls the entire production process. High-purity smelting ensures uniform composition of raw materials, and finished products have precise dimensional tolerances of ±0.03mm. Standard specifications are delivered quickly within 3-7 days, while customized heat-treated specifications are completed within 10-15 business days. We support global sea, air, and land transportation, and professional packaging prevents corrosion and damage during transit, comprehensively guaranteeing delivery quality and timeliness.
