ATEX Directive for Work Zones

Non-Sparking Safety Tools > How to Choose Correct Alloy and Zone Definitions
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CS Unitec Copper-Beryllium Tools (CuBe2) help fulfill the demand in the ATEX directive for work in Zone 0, 1 and 2 (Gas, Mists or Vapors); Zones 20, 21 and 22 (Dusts); and M1 and M2 for mining.

CS Unitec Aluminum-Bronze Tools (AlBr) help fulfill the demand in the ATEX directive for work in Zones 1 and 2 (Gas, Mists or Vapors), plus Zones 21 and 22 (Dusts).

How to Choose the Correct Alloy for Your Application
  Aluminum-Bronze (AlBr) Alloy Copper-Beryllium (CuBe2) Alloy

Zone Compatibility

Help fulfill demand in ATEX directive for work in Zones 1, 2, 21 and 22

Help fulfill demand in ATEX directive for work in Zones 0, 1, 2, 20, 21 and 22

Hardness 23-35 HRC 33-45 HRC
Durability Not as durable as CuBe. Very durable due to high hardness and tensile strength.
Magnetic Properties Low magnetism due to minimal ferrous components. Appropriate for non-critical non-magnetic applications. Non-ferrous components; safer for applications demanding non-magnetic properties.
Composition Al: 9.5-11%
Fe: 3.5-5.5%
Ni: 3.5-5.5%
Other: 0.5% max
Cu: Balance
Be: 1.8-2.1%
Co + Ni: 0.6% max
Other: 0.5% max
Cu: Balance

 

Ex Zone Definitions:
Gas, Mists or Vapors   Dusts

Zone 0 - An atmosphere where a mixture of air and flammable substances in the form of gas, vapor or mist is present frequently, continuously or for long periods.

Zone 1 - An atmosphere where a mixture of air and flammable substances in the form of gas, vapor or mist is likely to occur in normal operation occasionally.

Zone 2 - An atmosphere where a mixture of air and flammable substances in the form of gas, vapor or mist is not likely to occur in normal operation but, if it does occur, will persist for only a short period.

 

Zone 20 - An atmosphere where a cloud of combustible dust in the air is present frequently, continuously or for long periods.

Zone 21 - An atmosphere where a cloud of combustible dust in the air is likely to occur in normal operation occasionally.

Zone 22 - An atmosphere where a cloud of combustible dust in the air is not likely to occur in normal operation but, if it does occur, will persist for only a short period.

We also offer ATEX-approved air and hydraulic power tools for use in Ex zones.

MSDS (Safety Data Sheet) / Bulletin can be provided upon request or can be downloaded here:
MSDS: Cast Copper-Beryllium 2008.pdf
MSDS: Cast Aluminium-Bronze 2008.pdf

ATEX information: http://ec.europa.eu/enterprise/sectors/mechanical/atex/index_en.htm

Exact appearance and/or specifications subject to change without notice.

Choosing the right alloy – AlBr or CuBe – for your application. (Download poster detailing Ex Zone definitions, PDF, 225k)

Download CS Unitec Non-sparking Safety Tool Catalog (PDF).

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White Paper: ATEX Certified Power Tools Ensure a High Level of Safety in Explosive Atmospheres