ASTM B766 PDF

ASTM F is the standard specification for electrodeposited coatings on It is worth noting that ASTM B and ASTM B were not written as fastener. 2. Discontinued; see Annual Book of ASTM Standards, Vol Replaced by Specification B 3. Annual Book of ASTM Standards, Vol 4. Revision: Edition, August 1, ; Published Date: January ; Status: Superseded By: Superseded By: ASTM B; Document Language: English.

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The prime purpose of the supplementary chromate finishes Types II and III on the electroplated cadmium is to increase corrosion resistance. Cadmium shall be deposited directly on the basis metal part without an undercoat of another metal except when the part is either stainless steel or aluminum and its alloys. This allows for proper functioning during corrosive exposure of moving parts, threaded assemblies, valves, and delicate mechanisms without jamming with debris. The as-deposited coating Type I is useful for the lowest cost protection in a mild or noncorrosive environment where early formation of white corrosion products is not detrimental or harmful to the function of a component.

Corrosion products formed on cadmium are tightly adherent. This abstract is a brief summary of the referenced standard.

It can also be electrodeposited on aluminum, brass, beryllium copper, copper, nickel, and powder metallurgy parts. Today, some 12, ASTM standards are used around the world to improve product quality, enhance safety, facilitate market access and trade, and build consumer confidence. This specification covers the requirements for electrodeposited cadmium coatings on products of iron, steel, and other metals.

The thickness of electrodeposited cadmium coatings shall be determined by the applicable test methods. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

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The thickness of the coating everywhere on the significant surface shall conform to the requirements of the specified class. This allows for proper functioning during corrosive exposure of moving parts, threaded assemblies, valves, and delicate mechanisms without jamming with debris. The lubricity of cadmium plating is used on springs for doors and latches and for weaving machinery operating in high humidity. Register for a trial account. Unlike zinc, cadmium does not build up voluminous corrosion products on the surface.

The basis metal shall be subjected to such cleaning procedures as necessary to ensure a surface satisfactory for subsequent electroplating. The as-deposited coating Type I is useful for the lowest cost protection in a mild or noncorrosive environment where early formation of white corrosion products is not detrimental or harmful to the function of a component. Search book title Enter keywords for book title search.

B Terminology Relating to Electroplating. The supplementary Type II chromate film shall be adherent, nonpowdery, and abrasion resistant.

ASTM-B, –

Electrodeposited cadmium coatings shall be classified on the basis of thickness as Class 25, 12, 8, and 5. Copyright Compu-tecture, Inc. The basis v766 shall be subjected to such cleaning procedures as necessary to ensure a surface satisfactory for subsequent electroplating.

Undercutting of threads on fastener parts is not necessary as the cadmium coating has a low coefficient of friction that reduces the tightening torque required and allows repetitive dismantling. Chromating will retard or prevent the formation of white qstm products on surfaces exposed to various environmental conditions as well as delay the appearance of corrosion from the basis metal.

Nonmagnetic Coatings on Magnetic Basis Metals. The lubricity of cadmium plating is used on springs for doors and latches and for weaving machinery operating in high humidity. Note 1-Cadmium is deposited as a coating principally on iron and steel asrm.

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ASTM B – 86() Standard Specification for Electrodeposited Coatings of Cadmium

F Standard Specification for Driven Fasteners: Cadmium-coated steel parts have a lower electrical contact resistance than zinc-coated steel. Active view current version of standard.

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Nails, Spikes, and Staples. There were no books found for the applied search filters. Enter your personal account email address to request a password reset: Cadmium-coated steel parts have a lower electrical contact awtm than zinc-coated steel.

Link to Active This link will always route to the current Active version of the standard. bb766

Cadmium Platings

Link to Active This link will always route to the current Active version of the standard. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract asfm accurate, complete or up to date. Chromating will retard or prevent the formation of white corrosion products on surfaces exposed to various environmental conditions as well as delay the appearance of corrosion from the basis metal.

It can also be electrodeposited on aluminum, brass, beryllium copper, copper, nickel, and powder metallurgy parts.

Cadmium is deposited as a coating principally on iron and steel products. Cadmium shall be deposited directly on the basis metal part without an undercoat of another metal except when the part is either stainless steel or aluminum and its alloys. It can also be electrodeposited on aluminum, brass, beryllium copper, copper, nickel, and powder metallurgy parts. Cadmium-coated steel parts have a lower electrical contact resistance than zinc-coated steel.

The lubricity of cadmium plating is used on springs for doors and latches and for weaving machinery operating in high humidity. The as deposited coating Ast I is useful for the lowest cost protection in a mild or noncorrosive environment where early formation of white corrosion products is not detrimental or harmful to the function of a component.