AISI 4140 MODIFIED Quenched & Tempered Bar

Alternative und Handelsbezeichungen
AISI 4140 MODIFIED, UNS G41400
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Description

AISI 4140 is a 1% chromium – molybdenum medium hardened general purpose high tensile steel – generally supplied hardened and tempered in the tensile range of 850 – 1000 MPa.

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 - 508 mm

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Mechanisch

PropertyTemperatureValue

Charpy impact energy, V-notch

-46.0 °C

27 J

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Dehnung

23.0 °C

20 %

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Härte, Brinell

23.0 °C

217 - 235 [-]

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Streckgrenze Rp 0,2

23.0 °C

551 - 665 MPa

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Zugfestigkeit

23.0 °C

690 MPa

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Chemical properties

PropertyValue

Chrom

0.9 - 1.2 %

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Eisen

Balance

Kohlenstoff

0.38 - 0.43 %

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Mangan

0.75 - 1 %

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Molybdän

0.15 - 0.35 %

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Phosphor

0.03 %

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Schwefel

0.025 %

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Silizium

0.15 - 0.35 %

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Technological properties

Property
Application areas

AISI 4140 modified is a low alloy hardened and tempered steel suitable for the manufacture of oil and gas downhole tools used in production and completion processes. General Engineering applications include construction components exposed to heavy strain, such as shafts, gear, bolts etc. AISI 4140 can also be used in hardened condition as machine parts exposed to heavy wear.

Heat Treatment

Hardened at 850°C followed by water quenching. Tempering at min. 650°C, cooled in air.

Welding

Moderate, can be welded.