17-4 PH DH1150 Bar

Alternative and trade names
17-4 PH, Alloy 1.4542, 17-4 PH

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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

This material data has been provided by Sverdrup Steel.

All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
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.

Ashby charts

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Applications

Oil & Gas Industry

Equipment For Petroleum & Natural Gas Industry

Other Equipment For Petroleum & Natural Gas Industries

Paper Industry

Paper Production Processes

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ALLOY 1.4547 Plate

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Properties

Dimension

Property	Value
Diameter	25.4 - 355.6 mm Show Supplier Material materials with Diameter of 25.4 - 355.6 mm

Mechanical

Property	Value	Temperature
Charpy impact energy, V-notch	41 J Show Supplier Material materials with Charpy impact energy, V-notch of 41 J at -46.0 °C	-46.0 °C
Elongation	16 % Show Supplier Material materials with Elongation of 16 % at 23.0 °C	23.0 °C
Hardness, Brinell	255 [-] Show Supplier Material materials with Hardness, Brinell of 255 [-] at 23.0 °C	23.0 °C
Tensile strength	860 MPa Show Supplier Material materials with Tensile strength of 860 MPa at 23.0 °C	23.0 °C
Yield strength Rp0.2	725 MPa Show Supplier Material materials with Yield strength Rp0.2 of 725 MPa at 23.0 °C	23.0 °C

Chemical properties

Property
Carbon	0.07 %
Chromium	15 - 17.5 %
Copper	3 - 5 %
Iron		Balance
Manganese	1 %
Nickel	3 - 5 %
Other	0.15 - 0.45 %	Nb+Ta
Phosphorus	0.04 %
Silicon	1 %
Sulfur	0.03 %

Technological properties

Property
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