17-4 PH DH1150 Bar
17-4 PH, Alloy 1.4542, 17-4 PH
Description
17-4 PH is a martensitic precipitation hardening stainless steel with additions of copper (Cu), niobium (Nb) and tantalum (Ta). The grade combines high strength and hardness values with moderate corrosion resistance. Different heat treatment temperatures can optimize mechanical properties, e.g. yield strength at 1100 – 1300MPa. Our stock material is double aged at 1150°F – defined as DH1150. Age hardening is can also be performed at 480°C to 620°C in a one-step process, where the lowest temperature gives the highest strength. To achieve good toughness at low temperatures, precipitation-hardening temperatures below 550°C are not recommended.
Related Standards
Equivalent Materials
Properties
Dimension
Diameter d
25.4 - 355.6 mm
Mechanical
Charpy impact energy, V-notch aK,charpy,V-notch
41 J at -46 °C
Elongation A
16 % at 20 °C
Hardness, Brinell HB
255 [-] at 20 °C
Tensile strength Rm
860 MPa at 20 °C
Yield strength Rp0.2 Rp0.2
725 MPa at 20 °C
Chemical properties
Element
Weight %
Comment
-
Balance
15 - 17.5 %
3 - 5 %
3 - 5 %
1 %
Technological properties
Application areas
chemical, petrochemical, paper and general metalworking industries
Heat Treatment
Solution annealing at 1000 to 1050°C, hardened at 480°C (H900) to 621°C (H1150)
Welding
Good, Pre-heating and post-heating practices used for standard hardenable stainless grades are not required. Min. RREN: 17
This material data has been provided by Sverdrup Steel.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.