ASTM A385/A385M-22

ASTM A385/A385M-22

novembre 2022
Norme En vigueur

Standard Practice for Providing High-Quality Zinc Coatings (Hot-Dip)

This practice covers the precautions that should be taken to obtain high-quality galvanized coatings. Assemblies should consist of elements of similar chemistry and surface condition. Whenever different analyses of steel or different surfaces of steel are united in an assembly the galvanized finish is not generally uniform in appearance. These differences include excessively rusted surfaces, pitted surfaces, machined surfaces, cast iron especially with sand inclusion, cast steel, malleable iron, hot-rolled steel, and cold-rolled steel. All oil or grease should be removed from both the sheet steel and wire or rod before rolling. Welding flux residues shall be removed by standard galvanizing cleaning techniques and are best removed at the gun. All fabricated assemblies shall be so designed with vent and drain holes such that no air is trapped during immersion of the assemblies into cleaning solutions or molten zinc. Moving parts such as handles or hinges should be galvanized separately and assembled after galvanizing. All markings shall remain legible after galvanizing. When an assembly of steel parts or an individual steel part has been designed and fabricated with critical dimensions and must be subsequently hot-dip galvanized, the designer should be aware that the hot-dip galvanizing process chemical cleaning to prepare the surfaces for coating and this may alter the critical dimensions.

Information importante
Pour la consultation de ce document, l'installation du plug in FileOpen est nécessaire.
la consultation du document est disponible uniquement en version PDF avec une utilisation monoposte et l'impression n'est pas autorisée.
Si ce n'est pas déjà fait, téléchargez le plug-in ICI
Consultez ICI nos prérequis.
Informations générales

Collections

Normes américaines ASTM

Date de publication

novembre 2022

Nombre de pages

11 p.

Référence

ASTM A385/A385M-22

Indice de classement

A0385_A0385M-22
Résumé
Standard Practice for Providing High-Quality Zinc Coatings (Hot-Dip)

This practice covers the precautions that should be taken to obtain high-quality galvanized coatings. Assemblies should consist of elements of similar chemistry and surface condition. Whenever different analyses of steel or different surfaces of steel are united in an assembly the galvanized finish is not generally uniform in appearance. These differences include excessively rusted surfaces, pitted surfaces, machined surfaces, cast iron especially with sand inclusion, cast steel, malleable iron, hot-rolled steel, and cold-rolled steel. All oil or grease should be removed from both the sheet steel and wire or rod before rolling. Welding flux residues shall be removed by standard galvanizing cleaning techniques and are best removed at the gun. All fabricated assemblies shall be so designed with vent and drain holes such that no air is trapped during immersion of the assemblies into cleaning solutions or molten zinc. Moving parts such as handles or hinges should be galvanized separately and assembled after galvanizing. All markings shall remain legible after galvanizing. When an assembly of steel parts or an individual steel part has been designed and fabricated with critical dimensions and must be subsequently hot-dip galvanized, the designer should be aware that the hot-dip galvanizing process chemical cleaning to prepare the surfaces for coating and this may alter the critical dimensions.

Normes remplacées (1)
ASTM A385/A385M-20
janvier 2020
Norme Annulée
Standard Practice for Providing High-Quality Zinc Coatings (Hot-Dip)

This practice covers the precautions that should be taken to obtain high-quality galvanized coatings. Assemblies should consist of elements of similar chemistry and surface condition. Whenever different analyses of steel or different surfaces of steel are united in an assembly the galvanized finish is not generally uniform in appearance. These differences include excessively rusted surfaces, pitted surfaces, machined surfaces, cast iron especially with sand inclusion, cast steel, malleable iron, hot-rolled steel, and cold-rolled steel. All oil or grease should be removed from both the sheet steel and wire or rod before rolling. Welding flux residues shall be removed by standard galvanizing cleaning techniques and are best removed at the gun. All fabricated assemblies shall be so designed with vent and drain holes such that no air is trapped during immersion of the assemblies into cleaning solutions or molten zinc. Moving parts such as handles or hinges should be galvanized separately and assembled after galvanizing. All markings shall remain legible after galvanizing. When an assembly of steel parts or an individual steel part has been designed and fabricated with critical dimensions and must be subsequently hot-dip galvanized, the designer should be aware that the hot-dip galvanizing process chemical cleaning to prepare the surfaces for coating and this may alter the critical dimensions.

Qu'est-ce que le format Redline ?
Le service Redline+ - comparateur de normes vous permet d’identifier facilement et simplement les changements majeurs entre la norme en vigueur et sa dernière version annulée.

D’un simple coup d’oeil, vous pourrez identifier les ajouts, suppressions ou modifications à un texte, tableau, figure et formule.
D’un simple coup d’oeil, vous pourrez identifier les ajouts, suppressions ou modifications à un texte, tableau, figure et formule

Le service Redlines+ vous est proposé sur la collection des normes françaises en vigueur, en langue Française et au format HTML et PDF.

Pour un aperçu du service, veuillez cliquer sur Visualiser une norme au format redline
Besoin d’identifier, de veiller et de décrypter les normes ?

COBAZ est la solution simple et efficace pour répondre aux besoins normatifs liés à votre activité, en France comme à l’étranger.

Disponible sur abonnement, CObaz est LA solution modulaire à composer selon vos besoins d’aujourd’hui et de demain. Découvrez vite CObaz !

Demandez votre démo live gratuite, sans engagement

Je découvre COBAZ