Precipitation Hardening Steel 17-4PH & S17400 Forged Valve Body
17-4PH & S17400 is A Precipitation Hardening Martensitic Stainless steel with an addition of Nb/Cu elements. 17-4PH Combines High Strength, hardness (up to HRC40), and corrosion resistance. Mechanical properties can be optimized with final age treatment.
| Product parameters | |
| Material Technical Standards:: | ASTM A705, AMS 5643, ASTM A693 |
| Place of Origin: | China |
| Stocklist & Inventory Available:: | Diameter 10 ~ 550mm |
| Melting Process Route:: | EAF + VD + LF / BEF + ESR / VAR |
| Min. order quantity Per Batch:: | 500 KG |
| Heat Treatment Practice:: | Hardened 1050 ℃, water or oil cooled, aged 480 ~ 620 ℃, air cooled |
| Ultrasonic Test Standard:: | EN 10308, MIL-STD-AMS 2154 CLa |
| Production Lead Time:: | Within 10 days after payment |
Description
Grade 17-4PH & S17400 is A Precipitation Hardening Martensitic Stainless steel with an addition of Nb/Cu elements. Grade 17-4PH Combines High Strength, hardness (up to HRC40), and corrosion resistance. Mechanical properties at RM can be optimized with final age treatment.
Chemical Elements ( Mass Weight - % )
C (％): ≤ 0.055, Si (％): ≤ 1.00, Mn (％): ≤ 0.50, P (％)≤: 0.030, S (％)≤: 0.015
Cr (％): 15.0 ~ 16.0, Ni (％): 3.00 ~ 4.50, Mo (％): ≤ 0.60, Nb (％): 0.15 ~ 0.35
Cu (%): 3.00 ~ 3.70
Mechanical Properties Under Age treatment
Thickness/≤mm: 100
Condition of thermal treatment: AT (Solution treatment)
Hardness ≤HBS: 360
Yield strength σ0.2≥/MPa: -
Tensile strength σb/MPa: ≤1200
Elongation δ ≥(％): -
Elongation δ(transversal )≥(％): -
Impact absorbing power Akv≥/J : -
Condition of thermal treatment: P930
Hardness ≤HBS: -
Yield strength σ0.2≥/MPa: 720
Tensile strength σb/MPa: 930~1100
Elongation δ ≥(％): -16
Impact absorbing power Akv≥/J : 40
Condition of thermal treatment: P960
Hardness ≤HBS: -
Yield strength σ0.2≥/MPa: 790
Tensile strength σb/MPa: 960~1160
Elongation δ ≥(％): 12
Impact absorbing power Akv≥/J : -
Metals, Stocklist and Services
Stock over 60 grades with a competitive price, along with cutting service for specific requirement.
With extensive Stock with a prompt delivery, Customizing special material is welcome.
Heat Treatment Practice
Heat treatment is only suitable for specific grades of stainless steel. When heat treating a stainless the hardening temperatures, including rate of heating, cooling and soaking times will vary due to several factors such as the shape and size of each component. Other considerations during the heat treatment process include the type of furnace, quenching medium and work piece transfer facilities. Please consult with the heat treatment provider for whole guidance on heat treatment of stainless steel grades. We are delighted to help to work with you the special heat treatment based on your special requirements.
Typical Applications
Chemical equipment & parts.
Mechanical parts used in the condition of corrosion resistance.
Automobile parts, exhaust pipe, Electronics, Turbine motor blade.
Bolt and nut, Valve body, Pressure vessel.
