GBT 4334-2020 金属和合金的腐蚀 奥氏体及铁素体-奥氏体（双相）不锈钢晶间腐蚀试验方法

ICS77.060H25中华人民共和国国家标准GB/T4334—2020代替GB/T4334—2008金属和合金的腐蚀奥氏体及铁素体-奥氏体(双相)不锈钢晶间腐蚀试验方法Corrosionofmetalsandalloys—Testmethodsforintergranularcorrosionofausteniticandferritic-austenitic(duplex)stainlesssteels[ISO3651-1:1998,Determinationofresistancetointergranularcorrosionofstainlesssteels—Part1:Austeniticandferritic-austenitic(duplex)stainlesssteels—Corrosiontestinnitricacidmediumbymeasurementoflossinmass(Hueytest);ISO3651-2:1998,Determinationofresistancetointergranularcorrosionofstainlesssteels—Part2:Ferritic,austeniticandferritic-austenitic(duplex)stainlesssteels—Corrosiontestinmediacontainingsulfuricacid,MOD]2020-04-28发布2020-11-01实施国家市场监督管理总局国家标准化管理委员会发布