S165M QT900 Bar

Nombres alternativos y comerciales
S165M, ALLOY 1.4418, S165M, 2387
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Description

S165M is a high strength low carbon martensitic/ austenitic stainless steel. It combines high strength, good fatigue resistance with good weldability, properties which are maintained after welding. Two minimum tensile levels are often used; QT760 and QT900. QT900 is mostly used by the industry.

Related Standards

Equivalent Materials

Los datos sobre este material han sido proporcionados por Sverdrup Steel.

A menos que se indique lo contrario, todas las medidas corresponden a condiciones de temperatura ambiente. A menos que se indique lo contrario, se utilizan las unidades del SI.
Las normas armonizadas son similares a uno o varios estándares del proveedor. Es posible que algunas normas armonizadas se ajusten al estándar original, mientras que otras pueden quedar fuera de su alcance.

Ashby charts

Propiedades

Medidas

PropertyValue

Diámetro

10 - 410 mm

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Mecánica

PropertyTemperatureValue

Charpy impact energy, V-notch

-40.0 °C

32 J

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Dureza Brinell

23.0 °C

280 - 340 [-]

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Elongación

23.0 °C

16 %

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Límite elástico Rp 0,2

23.0 °C

750 MPa

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Resistencia a la tracción

23.0 °C

900 - 1100 MPa

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Chemical properties

PropertyValue

Azufre

0.005 - 0.03 %

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Carbono

0.06 %

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Cromo

15 - 17 %

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Fósforo

0.04 %

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Hierro

Balance

Manganeso

0.6 - 1.5 %

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Molibdeno

0.8 - 1.5 %

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Nitrógeno

0.02 %

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Níquel

4 - 6 %

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Silicona

0.3 - 0.7 %

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Technological properties

Property
Application areas

The alloy has been designed to resist erosion corrosion or cavitation experienced in hydraulic applications. General areas for applications: Shafts, propellers, spindles, bolts, etc.

Corrosion properties

S165M is designed for application in slightly corrosive environment. Corrosion resistance is at the level of AISI 304L in most environments, however insensitive to intergranular corrosion.

Heat Treatment

Austenitize and quench from 950 to 1050°C and immediate temper at 600°C for 8 hours followed by cooling in air.

Welding

Good, the low carbon martensite with the finely dispersed residual austenite yields an excellent HAZ toughness in the as welded condition. Preheating to 100°C – 200°C is suggested for very thick section or when the stress concentration after cooling require it.