Seamless austenitic-ferritic(duplex) stainless steel tubes and pipes—Part 1:Tubes for heat exchanger
全国钢标准化技术委员会(SAC/TC 183)
GB/T 21833的本部分规定了热交换器用奥氏体铁素体型双相不锈钢无缝钢管的订货内容、尺寸、外形、重量、技术要求、试验方法、检验规则、包装、标志和质量证明书。
本部分适用于热交换器用奥氏体-铁素体型双相不锈钢无缝钢管（以下简称钢管)。
This standard is the original Chinese electronic standard.
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