標(biāo)準(zhǔn)編號(hào):	GB/T 4334-2008
中文名稱:	金屬和合金的腐蝕 不銹鋼晶間腐蝕試驗(yàn)方法
英文名稱:	Corrosion of metals and alloys - Test methods for intergranular corrosion of stainless steels
中標(biāo)分類:	H25    金屬化學(xué)性能試驗(yàn)方法
行業(yè)分類:	GB    國(guó)家標(biāo)準(zhǔn)
ICS分類:	77.060 77.060    金屬的腐蝕 77.060
發(fā)布機(jī)構(gòu):	國(guó)家質(zhì)量監(jiān)督檢驗(yàn)檢疫總局 國(guó)家標(biāo)準(zhǔn)化管理委員會(huì)
發(fā)布日期:	2008-10-10
實(shí)施日期:	2009-5-1
標(biāo)準(zhǔn)狀態(tài):	superseded
被新標(biāo)準(zhǔn)替代:	GB/T 4334-2020 金屬和合金的腐蝕 奧氏體及鐵素體-奧氏體（雙相）不銹鋼晶間腐蝕試驗(yàn)方法
被替代日期:	2020-11-1
替代舊標(biāo)準(zhǔn):	GB/T 4334.1-2000 不銹鋼10%草酸浸蝕試驗(yàn)方法 GB/T 4334.2-2000 不銹鋼硫酸-硫酸鐵腐蝕試驗(yàn)方法 GB/T 4334.3-2000 不銹鋼65%硝酸腐蝕試驗(yàn)方法 GB/T 4334.4-2000 不銹鋼硝酸-氫氟酸腐蝕試驗(yàn)方法 GB/T4334.5-2000 不銹鋼 硫酸-硫酸銅腐蝕試驗(yàn)方法 GB/T 4334.5-2000 不銹鋼硫酸-硫酸銅腐蝕試驗(yàn)方法
翻譯語言:	英文
文件格式:	PDF
中文字符數(shù):	12000 字
翻譯價(jià)格(元):	360.0
交付時(shí)間:	付款后 1 個(gè)工作日

This standard specifies specimen, test solution, test equipment, test conditions and procedure, assessment and report of the result of test methods for intergranular corrosion of stainless steel. This standard applies to the test of intergranular corrosion of stainless steel and covers the following test methods: a) Method A - method of 10 percent oxalic acid etch test for stainless steels. It is applicable to screening test for intergranular corrosion of austenitic stainless steel. The specimen is electrolytically etched in 10% oxalic acid solution and then the metallographic structure of the etched surface examined under a microscope to determine whether long-time hot acid tests (Method B, C, D and E) are necessary. It can also be performed as independent intergranular corrosion test method on occasion that damages on tested structural parts and equipment are not permissible. b) Method B - stainless steels-method of ferric sulfate-sulfuric acid corrosion test. It is applicable to the assessment of intergranular corrosion tendency through corrosion rate after austenitic stainless steel is boiled in sulfuric acid - ferric sulfate solution. c) Method C - method of 65% nitric acid test for stainless steels. It is applicable to the assessment of intergranular corrosion tendency through corrosion rate after austenitic stainless steel is boiled in 65% nitric acid solution. d) Method D - method of nitric-hydrofluoric acid test for stainless steels It is applicable to the assessment of the intergranular corrosion tendency of austenitic stainless steel containing molybdenum. Intergranular corrosion tendency is judged by the ratio of corrosion rate of 10% nitric acid-3% hydrofluoric acid solution (70 ℃) to that of authentic specimen. e) Method E - stainless steels-method of copper sulfate-sulfuric acid corrosion test It is applicable to the assessment of intergranular corrosion tendency of austenite and austenite-ferrite stainless steel through bend or metallographic method after the austenite and austenite-ferrite stainless steel are boiled in copper sulfate-sulfuric acid solution containing copper filings.

1 Scope 2 Normative Reference 3 Specimen 4 Method A - Method of 10 Percent Oxalic Acid Etch Test for Stainless Steels 5 Method B-Method of Ferric Sulfate-Sulphuric Acid Test for Stainless Steels 6 Method C-Method of 65% Nitric Acid Test for Stainless Steels 7 Method D-Method of Nitric-Hydrofluoric Acid Test for Stainless Steels 8 Method E-Stainless Steels-Method of Copper Sulphate-Sulphuric Acid Corrosion Test