I-70-H Beryllium Instrument Grade

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I-70-H

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Description

I-70-H grade beryllium consists of 99% beryllium with a maximum of 0.7% beryllium oxide. Low oxide grades allow for bare beryllium mirrors to yield a lower level scatter and to polish easier than higher oxide grades. I-70-H grade beryllium metal is stable over a wide range of temperatures from -196°C to 226°C (-321°F to 440°F) and offers superior reflectivity in the far infrared region (98.5% at 8-12 micron wavelengths) without optical coatings. This IR reflectivity enables designers to create defense applications that are more difficult to detect.

Diese Materialdaten wurden von Materion Brush GmbH zur Verfügung gestellt

Alle Daten beziehen sich auf Raumtemperatur soweit nicht anderweitig spezifiziert. SI Einheiten werden verwendt soweit nicht anderweitig spezifiziert.
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Eigenschaften

Allgemein

Property	Temperature	Value	Comment
Dichte	23.0 °C	1.85 g/cm³ Show Supplier Material materials with Dichte of 1.85 g/cm³	Theoretical density for BeO: 0.7%
Korngröße		12 μm Show Supplier Material materials with Korngröße of 12 μm	max., ASTM E-112

Mechanisch

Property	Temperature	Value	Comment
Dehnung	23.0 °C	2 % Show Supplier Material materials with Dehnung of 2 %	in 4 diameters
Streckgrenze Rp 0,2	23.0 °C	207 MPa Show Supplier Material materials with Streckgrenze Rp 0,2 of 207 MPa
Zugfestigkeit	23.0 °C	345 MPa Show Supplier Material materials with Zugfestigkeit of 345 MPa

Chemical properties

Property	Value	Comment
Aluminium	0.07 % Show Supplier Material materials with Aluminium of 0.07 %	max.
Andere	0.04 % Show Supplier Material materials with Andere of 0.04 %	max., other metallic impurities each
Beryllium	99 % Show Supplier Material materials with Beryllium of 99 %	min., BeO: 0.7% max
Eisen	0.1 % Show Supplier Material materials with Eisen of 0.1 %	max.
Kohlenstoff	0.07 % Show Supplier Material materials with Kohlenstoff of 0.07 %	max.
Magnesium	0.07 % Show Supplier Material materials with Magnesium of 0.07 %	max.
Silizium	0.07 % Show Supplier Material materials with Silizium of 0.07 %	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. These grades offer high microyield strength allowing instrumentation to keep their form when exposed to stress. Beryllium metal is more resistant to changes in temperature extremes.

I-70-H Beryllium Instrument Grade

Description

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Anwendungen

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Eigenschaften