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.

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

PropertyValueTemperatureComment

Density

7.8 g/cm³

Show Supplier Material materials with Density of 7.8 g/cm³ at 23.0 °C

23.0 °C

typical for steels

Mechanical

PropertyValueTemperatureComment

Elastic modulus

200 - 210 GPa

Show Supplier Material materials with Elastic modulus of 200 - 210 GPa at 23.0 °C

23.0 °C

typical for steels

Elongation A5

18 %

Show Supplier Material materials with Elongation A5 of 18 % at 23.0 °C

23.0 °C

Hardness, Brinell

265 [-]

Show Supplier Material materials with Hardness, Brinell of 265 [-] at 23.0 °C

23.0 °C

Tensile strength

730 - 750 MPa

Show Supplier Material materials with Tensile strength of 730 - 750 MPa at 23.0 °C

23.0 °C

Yield strength Rp0.2

430 MPa

Show Supplier Material materials with Yield strength Rp0.2 of 430 MPa at 23.0 °C

23.0 °C

Chemical properties

Property

Carbon

0.75 - 1 %

Chromium

16 - 19 %

Iron

76.6 - 83.3 %

Manganese

1 %

max.

Molybdenum

1.3 %

Phosphorus

0.04 %

Silicon

1 %

max.

Sulfur

0.02 %

Vanadium

0.07 - 0.12 %