17-4PH plate from Gnee steel
Apr 14, 2026
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Business Terms
| Terms | Specification |
|---|---|
| Minimum Order Quantity: | 5 Tons |
| Price: | To be negotiated |
| Packaging Details: |
As Requested |
| Delivery Time: | Within 7-10 Working Days |
| Payment Terms: | T/T, L/C, Credit Card |
| Supply Ability: | 100000 Tons per month |
| Certification: | RoHS, BIS, SABS, tisi, KS, JIS, ISO9001 |
| Export To: |
United States, United Kingdom, India, Australia, France, Italy, Saudi Arabia, Spain, Canada, Denmark, Finland, Israel, Japan, Korea, Malaysia, Mexico, Pakistan, Russian Federation, Sweden, Thailand, Turkey, etc. |
Chemical Compositions
| Element | Carbon (C) | Manganese (Mn) | Silicon (Si) | Chromium (Cr) | Nickel (Ni) | Copper (Cu) | Molybdenum (Mo) | Sulfur (S) | Phosphorus (P) | Vanadium (V) |
|---|
| Content (%) | ≤ 0.07 | ≤ 1.00 | ≤ 1.00 | 15.00 – 17.50 | 3.00 – 5.00 | 3.00 – 5.00 | ≤ 0.50 | ≤ 0.030 | ≤ 0.040 | ≤ 0.10 |
Mechanical Properties
| Properties | Metric Unit | Imperial Unit |
|---|
| Tensile Strength | 515 – 750 MPa | 74.7 – 108.7 ksi |
| Yield Strength | 205 MPa | 29.7 ksi |
| Vickers Hardness | 152 – 200 HV | - |
| Brinell Hardness | 146 – 217 HB | - |
| Rockwell Hardness | 79 HRB | - |
| Elongation | 35% | 35% |
| Elastic Modulus | 193 GPa | 28.0 × 10^6 psi |
Heat Treatment
Solution Annealing: Suitable for both plate and bar. Heat the material to 1020-1065°C (1870-1950°F) and air cool. This process dissolves alloying elements and homogenizes the structure.
Precipitation Hardening is the most common heat treatment process for 17-4PH and increases strength and hardness.
H900: Suitable for bar, but not recommended for plate. Heat the material to 482°C (900°F) for 1 hour and air cool.
H925: Suitable for both plate and bar. Heat to 496°C (925°F) for 1 hour and air cool.
H1025: Suitable for both plate and bar. Heat to 552°C (1025°F) for 1 hour and air cool.
H1075: Suitable for plate and bar. Heat to 579°C (1075°F) for 1 hour, then air cool.
H1150: Suitable for plate and bar. Heat to 621°C (1150°F) for 4 hours, cool to room temperature, reheat to 621°C for 4 hours, then air cool.
H1150M: Suitable for plate and bar. Heat to 621°C (1150°F) for 4 hours, cool to room temperature, then reheat to 760°C (1400°F) for 2 hours, then air cool.
H1150D: Suitable for bar, but not often used for plate. Same as H1150M, but with a more controlled second aging stage.
Stress Relief: Suitable for plate and bar. Heat to approximately 290-425°C (550-800°F) and hold for 1-2 hours to reduce internal stresses without significantly changing mechanical properties.
Annealing: 17-4PH is not normally fully annealed as this would eliminate the benefits of its precipitation hardening properties.
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