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NATIONAL STANDARD

Number Type Status Name Rlease time Implementation time
1 National standard(participate) Promulgated GB/T4226-2009不锈钢冷加工钢棒 2009-10-30 2010-05-01
2 National standard(participate) Promulgated GB/T4240-2009不锈钢丝 2009-10-30 2010-05-01
3 National standard(participate) Promulgated GB/T4232-2009冷顶锻用不锈钢丝 2009-10-30 2010-05-01
4 National standard(participate) Promulgated GB/T24588-2009不锈弹簧钢丝 2009-10-30 2010-05-01
5 National standard(participate) Promulgated GB/T14976-2012液体输送用不锈钢无缝钢管 2012-05-01 2013-02-01
6 National standard(participate) Promulgated GB/T14975-2012结构用不锈钢无缝钢管 2012-11-05 2013-05-01
7 National standard(participate) Promulgated GB/T30059-2013热交换器用耐蚀合金无缝管 2013-12-17 2014-09-01
8 National standard(participate) Promulgated GB/T30073-2013核电站热交换器用奥氏体不锈钢无缝钢管 2013-12-17 2014-09-01
9 National standard(participate) Promulgated GB 13296-2013锅炉、热交换器用不锈钢无缝钢管 2013-09-18 2014-07-01
10 National standard(participate) Promulgated GB 24512.3-2014 核电站用无缝钢管 第3部分:不锈钢无缝钢管 2014-06-24 2015-04-01
11 National standard(Preside) Promulgated GB/T 31303-2014奥氏体-铁素体型双相不锈钢棒 2014-12-05 2015-09-01
12 National standard(participate) Formulating GB5310 高压锅炉用无缝钢管
13 National standard(participate) Formulating 石油化工加氢装置工业炉用不锈钢无缝钢管
14 National standard(Preside) Formulating 尿素级不锈钢棒

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COMPANY STANDARD

Number Type Status Name Rlease time Implementation time
1 Company standard Promulgated Q/YT 202-2016 Round blank of seamless stainless steel tubes and pipes 2016-02-20 2016-03-10
2 Company standard Promulgated Q/YT 203-2016 Round blank of seamless heat-resisting stainless steel tubes for high pressure boiler 2016-02-20 2016-03-10
3 Company standard Promulgated Q/YT 204-2016 Round blank of seamless austenitic-ferritic(duplex)stainless steel tubes and pipes 2016-02-20 2016-03-10
4 Company standard Promulgated Q/YT 205-2016 Round blank of seamless super austenitic stainless steel tubes and pipes 2016-02-20 2016-03-10
5 Company standard Promulgated Q/YT 206-2016 Round blank of seamless Nickel base and Nickel-Iron base alloy tubes and pipes 2016-02-20 2016-03-10
6 Company standard Promulgated Q/YT 101-2014 Stainless Steel Wire Rods For Steel Wirs 2014-01-22 2014-03-01
7 Company standard Promulgated Q/YT 102-2014 Stainless Steel Wire Rods For Cold Heading And Cold Forging 2014-01-22 2014-03-01
8 Company standard Promulgated Q/YT 103-2014 Stainless Steel Wire Rods For Welding 2014-01-22 2014-03-01
9 Company standard Promulgated Q/YT 201-2016 Round blank of seamless stainless steel tubes and pipes for general purpose 2016-02-20 2016-03-10
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