Stainless Steel 440B

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Description

Martensitic stainless steel, which is more hardenable than type 420. Corrosion resistance is good, provided it is hardened and tempered. Machining is difficult.

Equivalent Materials

This material data has been provided by Salomons Metalen.

"Typical" values were obtained via a literature search. "Predicted" values were imputed via artificial intelligence technology. While we have placed significant efforts in ensuring data accuracy, "typical" and "predicted" data should be considered indicative and verified by appropriate material testing. Please do contact us if additional information on the the predicted data method is required.
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.

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Properties

General

PropertyTemperatureValueComment

Density

23.0 °C

7.8 g/cm³

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typical for steels

Mechanical

PropertyTemperatureValueComment

Elastic modulus

23.0 °C

200 - 210 GPa

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typical for steels

Elongation A5

23.0 °C

18 %

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Hardness, Brinell

23.0 °C

265 [-]

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Tensile strength

23.0 °C

730 - 750 MPa

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Yield strength Rp0.2

23.0 °C

430 MPa

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Chemical properties

PropertyValueComment

Carbon

0.75 - 1 %

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Chromium

16 - 19 %

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Iron

76.6 - 83.3 %

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Manganese

1 %

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max.

Molybdenum

1.3 %

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Phosphorus

0.04 %

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Silicon

1 %

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max.

Sulfur

0.02 %

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Vanadium

0.07 - 0.12 %

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