为保证20G高压锅炉管的产品质量、制造工艺性和长期运行的安全性,对生产的20G高压锅炉管,按照GB5310-1995“高压锅炉用无缝管”标准并结合电站锅炉制造和运行要求,进行系统的性能评定试验。试验结果证明无发现钢管冶金缺陷,其力学、焊接性能均符合标准规定。
    In order to ensure the product quality,m anufacturability and long-term running safety for20G high pressure boier tube ,and the performance assessment test of20G high pressure boier tube can be d one according to GB5310-1995Seamless Tube for High Pressure Boiler Stan dard and requirements of manufacture and running of boiler.The tset result prov es that the defect of steel tube isn't found out,and the performance of mechani cs and welding is up to the standard.