DIN Standards Download Share numberStandard file name1DIN 17456 General purpose seamless circular stainless steel tubes2DIN 17230 1980 Ball and Roller Bearing Steels3DIN 17222 1979 Cold Rolled Steel Strips for Springs Technical Conditions of Delivery4DIN 17175 seamless tubes of heatresistant steels5DIN 2448 seamless steel pipes and tubes6DIN 2393 part1 welded precision steel tubes7DIN 2393 part2 welded precision steel tubes8DIN 2391-1-1994 seamless precision tubes part19DIN 2391-2-1994 seamless precision tubes part210DIN 1630 seamless circular tubes of nonalloy steels with very high quality requirements11DIN 1629 84 1984 Seamless Circular Unalloyed Steel Tubes Subject to special requirements