17-4 PH DH1150 Bar

Alternative und Handelsbezeichungen
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

Diese Materialdaten wurden von Sverdrup Steel zur Verfügung gestellt

Alle Daten beziehen sich auf Raumtemperatur soweit nicht anderweitig spezifiziert. SI Einheiten werden verwendt soweit nicht anderweitig spezifiziert.
Äquivalente Standards sind ähnlich zu einem oder mehreren Standards die der Anbieter angegeben hat. Manche äquivalente Standards können strikter sein oder außerhalb der Bedingungen des ursprünglichen Standards.

Ashby charts

Eigenschaften

Abmessung

PropertyValue

Durchmesser

25.4 - 355.6 mm

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Mechanisch

PropertyTemperatureValue

Charpy impact energy, V-notch

-46.0 °C

41 J

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Dehnung

23.0 °C

16 %

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Härte, Brinell

23.0 °C

255 [-]

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Streckgrenze Rp 0,2

23.0 °C

725 MPa

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Zugfestigkeit

23.0 °C

860 MPa

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Chemical properties

PropertyValueComment

Andere

0.15 - 0.45 %

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Nb+Ta

Chrom

15 - 17.5 %

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Eisen

Balance

Kohlenstoff

0.07 %

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Kupfer

3 - 5 %

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Mangan

1 %

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Nickel

3 - 5 %

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Phosphor

0.04 %

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Schwefel

0.03 %

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Silizium

1 %

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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