I-220-H Beryllium Instrument Grade

Alternative and trade names
I-220-H
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Description

I-220-H beryllium is an instrument grade beryllium metal used in applications requiring high resistance to plastic deformation at low stress levels. The high resistance to plastic deformation at low stress levels is crucial for applications that require high micro-yield strength.

This material data has been provided by Materion Brush GmbH.

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.

Ashby charts

Properties

General

PropertyTemperatureValueComment

Density

23.0 °C

1.86 g/cm³

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Theoretical density for BeO: 2.2%

Grain size

15 μm

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max., ASTM E-112

Mechanical

PropertyTemperatureValue

Elongation

23.0 °C

1 - 2 %

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Tensile strength

23.0 °C

448 MPa

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Yield strength Rp0.2

23.0 °C

345 MPa

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Chemical properties

PropertyValueComment

Aluminium

0.1 %

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max.

Beryllium

98 %

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min., BeO: 2.2% max

Carbon

0.15 %

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max.

Iron

0.15 %

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max.

Magnesium

0.08 %

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max.

Other

0.04 %

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max., other metallic impurities each

Silicon

0.08 %

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max.

Technological properties

Property
Application areas

It is hot isostatically pressed beryllium grades used in space applications and for low-density, bare polished optical applications or when reduced weight is required.