NB-T+47019.6-2021+锅炉、热交换器用管订货技术条件第6部分：奥氏体-铁素体型双相不锈钢.pdfVIP

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NB-T+47019.6-2021+锅炉、热交换器用管订货技术条件第6部分：奥氏体-铁素体型双相不锈钢.pdf

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ICS

CCSJ

NB/T—

代替NB/T47019.6—2011

、

：

Purchasetechnicalspecificationforboilerheatexchangertubes—

Part6：Austenite-ferriteduplexsteel

国家标准、地方标准、行业

标准、团体标准

NB/T47019.6—2021

前言····························································································································96

1范围························································································································97

2规范性引用文件········································································································97

3术语和定义···············································································································97

4一般要求·················································································································98

5尺寸和外形···············································································································98

6技术要求··················································································································98

7试验方法·················································································································100

8检验规则·················································································································101

9运输包装、标志和质量证明书·································

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NB-T+47019.6-2021+锅炉、热交换器用管订货技术条件第6部分：奥氏体-铁素体型双相不锈钢.pdfVIP