Corrosion results for astm g48 standard test method for pitting and crevice. Methods c, d, e and f allow for a ranking of alloys by minimum critical temperature to cause initiation of pitting corrosion and crevice. Standard practices for detecting susceptibility to. Astm g 48 03 pdf free download january 26, 2018 astm g comments.
Maximum allowable service temperatures and the astm g48. The last approved version of this historical standard. Astm g48 standard test methods for pitting and crevice. A variation of the astm g48a test used for duplex stainless steels is the astm a923 method c test. Ferric chloride corrosion testing rolled alloys, inc. Astm g48 standard test methods for pitting and crevice corrosion resistance of stainless steels and related alloys by use of ferric chloride solution is frequently used for corrosion testing within the metals industry. This paper will provide a brief overview of the standard and highlight several important points that can be sources. As outlined in astmg48, a stock solution of 6% ferric chloride fecl3. Standard test methods for pitting and crevice corrosion resistance of stainless steels and related alloys by use of ferric chloride solution1.
This is an important test as stainless steel in certain environments such as seawater can be susceptible to corrosion, usually through pitting rather than uniform attack. Testing by astm g48 for pitting and crevice corrosion. Astm a92314 standard test methods for detecting detrimental intermetallic phase in duplex austeniticferritic stainless steels. Chloride analysismetalsalloys, crevice corrosion, ferric chloride corrosion test, multiple crevice assembly mca. Pitting and crevice corrosion testing to astm g48 element. Comments on astm g48 standard test methods for pitting.
This wellknown is issued below the constant designation g forty eight. Astm g 48 03 pdf free download january 26, 2018 astmg comments. Astm g48112015 standard test methods for pitting and. I must say, however, that i dont agree with metrode when they say that the test temperatures given in astm g48 standard are only recommendations. Standard test methods for pitting and crevice corrosion resistance of stainless steels and related alloys by use of ferric chloride solution, crevice corrosion, ferric chloride test solution, localized corrosion, nickel, base alloys, pitting, stainless steels. The product is wrought duplex but testing to g48 using method a is client specification requirement for welding procedure qualification at 22c for suggested 72 hours. Example of pitting after corrosion testing in accordance with astm g48 method a. For annual book of astm standards volume information, refer to the standards document summary page on the astm website. Standard test methods for determining average grain size1.
Test for detecting susceptibility to intergranular attack in austenitic stainless steels sections 22 to 31, inclusive, and 1. Astm g 48 is a relatively severe test, but lack of definition in the standard can lead to variation of data. Pdf accelerated pitting corrosion test of 304 stainless. Astm g48 is a standard that outlines an accelerated assessment of the corrosion resistance of stainless steels. Duplex and astm g48a test sjones petroleum 16 may 16 03. In conclusion, the astm g48 standard is a valuable method to detect inadequate heat treatment and welding procedures that could lead to, for example, severe second phase precipitation e. Had you encountered a specific problem or were you just looking for general information. Download adtm defense manufacturing is all about project manufacturing and project. The material is normal duplex astm a790 uns 31803, smls pipe not the super duplex. Emmersonemailenglishpdffreedownload number of audio formats allowing you the data structure by yashwant kanetkar pdf free download kind of freedom few similar softwares would, even for a sum of money. Astm g48112015 standard test methods for pitting and crevice corrosion resistance of stainless steels and related alloys by use of ferric chloride solution. Abstract astm g48 standard test methods for pitting and crevice corrosion resistance of stainless steels and related alloys by use of ferric chloride. Originally approved in download now defense manufacturing is all about project manufacturing and project accounting. The astm standard states that the solution is designed to provide breakdown of 304 at room temperature.
If youre forced to pursue the wrost case scenario, then the other option is to use super duplex welding consumables for the weld coupon. Astm g48a pdf example of pitting after corrosion testing in accordance with astm g48 method a. Astm g48 method a, cagefighting is a form of mixed martial arts the g48 test is designed astm g48 method a assess materials for pitting corrosion resistance in chloride media stress is not relevant. The test involves the exposure of the materials in a 6 wt % ferrite chloride solution for test durations of 72 hours typically 24 hours. Corrosion testing to astm g48 using method a corrosion. Astm g48 test method for pitting and crevice corrosion resistance of stainless steels and related alloys by use of ferric chloride solution is a standard testing procedure to determine the resistance of stainless steel to pitting and crevice corrosion by exposing the test pieces to oxidising solution fecl3. This standard is widely used in the oil and gas industry. Purchase your copy of astm g48 112015 as a pdf download or hard copy directly from the official bsi shop. Astm g48 112015 standard test methods for pitting and. Could any one explain the potential reasons for the. Astm g48 pdf example of pitting after corrosion testing in accordance with astm g48 method a. Method c of a923 references astm g48 and the test method in a923 is very similar to methods a and e in g48. Complete document standard test methods for pitting and crevice corrosion resistance of stainless steels and related alloys by use of ferric chloride solution includes all. Standard test methods for pitting and crevice corrosion resistance of stainless steels and related alloys by use of ferric chloride solution.
Documents sold on the ansi webstore are in electronic adobe acrobat pdf format, however some iso and iec standards are available from amazon in hard copy format. Astm a923 testing detecting intermetallic phases in. August 7, 2019 admin travel leave a comment on astm g48 pdf. Standard test methods for pitting and crevice corrosion. When using stainless and duplex steels, astm g48 is widely used to ensure the quality of the material and resistance to pitting and crevice corrosion. Standard guide for examination and evaluation of pitting. Accelerated pitting corrosion test of 304 stainless steel. Methods c, d, e and f allow for a ranking of alloys by minimum critical temperature to cause initiation of pitting corrosion and crevice corrosion. Astm e47 pdf e 03 standard test method for color and colordifference measurement by tristimulus filter colorimetry, bidirectional geometry, color, color. All bsi british standards available online in electronic and print formats.
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