CSA G164 PDF

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Both specifications also require the bare spot to be less than 0. New information and research are constantly taken into account when updates are made to ASTM A; the last update was in New information and research are constantly being considered when updates are made to ASTM A; the last such update occurring in It is considered the standard of the hot-dip galvanizing industry in North America.

ASTM A has a more realistic expectation caa the coating be free of uncoated areas, bubbles, flux deposits, and matte.

Corbec news on hot-dip galvanizing of steel

However, the information presented here can adequately describe some of the key differences between the two. The practice behind each method varies from one specification to the other, but the most notable differences are the feeler gauge, magnetic and electronic measurements. The higher purity required by G is the difference between the two specifications. The most notable difference here is in regard to the minimum coating thickness required by A for pipe and tubing as well as for strip and bar.

ASTM A is listed as the standard for repair for each specification. However, the information presented here may adequately describe some of the major differences between the two.

Differences Between ASTM A123 and CSA G164

January 29, Caa by Daniel Barlow. A, on the other hand, only requires the average coating thickness measurement meet the minimum coating thickness required by Table 1, with the average of one specimen being one coating grade below that required in Table 1.

The information provided herein is not intended as a representation or warranty on the part of the AGA. It is considered the standard of the hot-dip galvanizing industry in North America. It is important to be aware of these differences in the case where a manufacturer or prescriber requests information on CSA G This leads to less confusion during the galvanizing process and creates a complete specification.

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Csx specifications require that the exposed area be less than an inch in its narrowest dimension. The CSA G classifications are more general and include; cast, rolled, stretched, pressed and forged steel; screws, bolts, nuts, rivets, nails and similar fasteners.

Also, A has no requirements as to the minimum coating thickness on threaded fasteners and items, but refers to ASTM A for these requirements. The sampling procedure laid out in G for testing the coating thickness has some very general and relaxed guidelines. On the other hand, the A only requires that the average measurement of the thickness of the coating meet the minimum coating thickness required by Table 1, with the sample average having sca coating less than that required in Table 1.

But G has its own test procedures for the weakening of the base layer, A refers to the most complete guide of the ASTM A standard, which gives the details of a bending test.

Again, these two specifications are similar, but have some very important cas especially in regards to the specified coating properties. This creates less confusion during the galvanizing process and a more complete specification. Few conditions are given by G regarding the appearance of the zinc coating. The procedure includes the option to choose the number of samples depending on the number of parts in the lot and the length and size of the parts.

Differences Between ASTM A and… | American Galvanizer’s Association

However, there are some competing specifications that are worthy of consideration when an end user requests that the galvanizer use them. However, there are csq competing specifications that get attention when an end user asks g1644 galvanizer to vsa them. Is CSA G still a valid specification? Both specifications also require that the exposed area cover less than 0. Table 1 of ASTM A has requirements for structural forms, strips and bars, plates, pipes and tubes, wires and rebar.

The scope of these two specifications, and therefore their intended purpose, are nearly identical. Some differences exist between the two with regard to piping and continuous galvanizing, but after examination, vsa same information is indicated within each specification. This standard has lost its relevance in the market and is rarely used.

Also, A does not give requirements for the minimum coating thickness on fasteners and threaded articles but references ASTM A for these requirements.

For, example, each specification uses a table to describe minimum coating thickness standards on galvanized steel, but the minimum requirements and materials listed are quite different. Both standards also cite that ASTM B6 is a standard that specifies that the zinc used in the galvanizing bath must be compliant. However, G gives its own procedures for testing for embrittlement of the base coating while A references a complete guide of ASTM A which details a bend test.

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The percentage by weight and the percentage by mass differ only in verbiage and describe the same amount. But due to financial considerations, CSA G has not been updated since and there seem to be no plans to do so. Recent reports have shown that much thicker coatings than these minimum vsa are not feasible on these materials. It has lost relevancy in the market and is seldom used.

The g14 provided herein has been developed to provide accurate and authoritative information about after-fabrication hot-dip galvanized steel. Each specification standardizes the coating thicknessfinish, appearance, and adherence of a hot-dip galvanized coating. Few requirements are given by G concerning the appearance of the zinc coating.

Both tables are shown below to compare the minimum coating thicknesses specified by each dsa. The sampling procedure set up in G to test the coating thickness has very general guidelines. Both tables are shown below to compare the minimum coating thicknesses specified by each.

The most significant cza here is with regard to the minimum coating thickness required by the A for pipes and tubes and for flats and bars.

Again, these two specifications csx similar, but have major differences; particularly with regard to the listed coating properties.

Standards Council of Canada

Some slightly different language exists between the two regarding piping and continuous galvanizing, but when read carefully, the same information is being stated in the scope of each specification.

Total average equal to the requirement for the minimum coating thickness with the thicknesses of all samples greater than a coating grade less than in Table 1. The first major difference between the two specifications comes when section cxa. Both specifications also contain a slight difference with respect to the repair of uncoated areas during the galvanizing process.