DIN1615 Welded Circular Unalloyed Steel Tubes Not Subject To Special Requirements        
DIN1626 Welded Circular Tubes of Non Alloy Steels with Special Quality Requirements-USt37.0/St37.0/St44.0/St52.0)     
DIN1628 Welded Circular Tubes of Non Alloy Steels with Very High Quality Requirements-St37.4/St44.4/St52.4     
DIN1629 Seamless Circular Tubes of Non Alloy Steels with Special Quality Requirements-St 37.0/St 44.0/St 52.0/1.0254/1.0256/1.0421     
DIN1630 Seamless Circular Tubes of Non Alloy Steels with Very High Quality Requirements-St 37.4/St 44.4/St 52.4/1.0255/1.0257/1.0581     
DIN2391-1 Seamless Precision Steel Tubes-St30Si/St30A1/St35/St45/St52        
DIN2391-2 Seamless Precision Steel Tubes-St30Si/St30A1/St35/St45/St52         
DIN2393-1 Welded Precision Steell Tubes-St28/USt28/RSt28/St34-2/US34-2/RSt34-2/St37-2/USt37-2/RSt37-2/St44-2/St52-3     
DIN2393-2 Welded Precision Steell Tubes-St28/USt28/RSt28/St34-2/US34-2/RSt34-2/St37-2/USt37-2/RSt37-2/St44-2/St52-3     
DIN2394-1 Welded And Sized Precision Steel Tubes-St28/USt28/RSt28/St34-2/US34-2/RSt34-2/St37-2/USt37-2/RSt37-2/St44-2/St52-3         
DIN2394-2 Welded And Sized Precision Steel Tubes-St28/USt28/RSt28/St34-2/US34-2/RSt34-2/St37-2/USt37-2/RSt37-2/St44-2/St52-3     
DIN2395-1 Rectangular and Square Electric Welded Precision Steel Tubes    
DIN2395-2 Rectangular and Square Electric Welded Precision Steel Tubes-St 34.2/St 37.2/St 52.3        
DIN2395-3 Rectangular and Square Electric Welded Precision Steel Tubes        
DIN2402 Pipelines Nominal Widths efinition Grading Pipework; grading of nominal sizes         
DIN2403 Marking of pipes according to fluid transported        
DIN2413 Part1 Design of steel pressure pipes         
DIN2413 Part2 Design of steel bends used in pressure pipelines        
DIN2440 Steel Tubes Medium Weight Suitable for Screwing-St33.2         
DIN2441 Steel Tubes Heaby Weight for Suitable for Screwing-St33.2         
DIN2444 Zinc Coatings on Steel Tubes         
DIN2445-1 Seamless Steel Tubes for Dynamic Loads Hot Finished Tubes Nominal Pressures 100 to 400        
DIN2445-2 Seamless Steel Tubes for Dynamic Loads Basis for Caluculation of Straight Tubes-St35.4/St 52.4)    
DIN2448 Seamless Steel Pipes and Tubes        
DIN2449 Seamless Steel Pipes and Tubes        
DIN2450 Seamless Steel Tubes in St 35 Dimensions and Range of ApplicationTION         
DIN2458 Welded Steel Pipes and Tubes        
DIN2460 Steel Pipes for Water Pipelines        
DIN2462 Seamless Tubes Of Stainless Steel-1.4301 / 1.4306 / 1.4311 / 1.4541 / 1.4550 / 1.4401 / 1.4404 / 1.4571     
DIN2463 Weldel Tubes of Austenitic Stainless Steel-X5CrNi189/X2CrNi189/X5CrNiMo1810/X2CrNiMo1810/X2CrNiMo1812/X5CrNiMo1812/X10CrNiTi189    
DIN2916 Bending Radii for seamless and Welded Steel Tubes        
DIN2917 Seamless steel tubes for superheated pipelines and headers    
DIN17100 Steels for General Structural Purposes-St33/St37.2/USt37.2/RSt37.2/St37.3/St44-2/St44-3/St50-2/St60-2/St52-33/St50-2/St60-2/St70-2    
DIN17102  Weldable Normalized Fine Grain Structural Steels-StE255/WStE255/TStE255/EStE255/StE285/WStE285/TStE285/EStE285    
DIN17119 Welded Cold Formed Square And Rectangular Steel Tubes for Structural Steel work-USt 37-2/RSt 37-2/St 37-3/St 44-2/St 44-3/St 52-3/WTSt 37-2/WTSt 37-3/WTSt 52-3    
DIN17120 Welded Circular Steel Tubes for Structural Steelwork-USt37-2/RSt37-2/St37-2/St44-2/St44-3/St52-3    
DIN17121 Seamless Circlar Steel Tubes for Structural Steelwork-RSt37-2/St37-3/St44-2/St44-3/St52-3    
DIN17123 Welded Circular Fine Grain Steel Tubes for Structural Steelwork-StE225/TStE255/EStE255/StE285/StE355/TStE355/EStE355/StE420/TStE420/EStE420    
DIN17124 Carbon and Ferritic Alloy Steel Forged and Bored Pipe for Hig Temperatur Service-EStE255/TStE255/EStE255/StE285/TStE285/EStE285/StE355/TSTE355/EStE355/StE420/TStE420/EStE420    
DIN17172 Steel Pipes for Pipe Lines for the Transport of Combustible Fluids and Gases-StE210.7/StE240.7/StE290.7/StE320.7/StE360.7/StE385.7/StE415.7/StE290.7TM/StE207.7TM/StE360.7TM     
DIN17173 Seamless Circular Tubes Made From Steels with Low Temperature Service-TSt35N/TSt35V/26CrMo4/11MnNi53/13MnNi63/10Ni14/12Ni19/X8Ni19    
DIN17174 Seamless Steel Tubes for Elevated Temperatures-TTSt 35 N/TTSt 35 V/11 MnNi 5 3/13 MnNi 6 3/10 Nl 14/12 Nl 19/X 8 Ni 9/1.0356/1.6212/1.6217/1.5637/1.5680    
DIN17175 Electricall Resitance Or Induction Weled Steel Tubes for Elevated Temperature-St35.8/St45.8/17Mn4/19Mn5/15Mo3/13CrMo910/10CrMo910/14MoV63/X20CrMoV121        
DIN17176 Seamless circular steel tubes for hydrogen service at elevated temperatures and pressures Technical delivery condition        
DIN17177 Electrically Resitance or Induction Welded Steel Tubes for Elevated Temperature-St37.8/St42.8/15Mo3    
DIN 17178 Welded circular fine grain steel tubes subject to special requirements Technical delivery conditions        
DIN 17179 Seamless circular fine grain steel tubes subject to special requirements Technical delivery conditions    
DIN17455 General Purpose Welded Circular Stainless Steel Tubes(Round Pipe)-1.4301/1.4306/1.4311/1.4541/1.4550/1.4401/1.4404/1.4571    
DIN17455  General Purpose Welded Circular Stainless Steel Tubes(Square.Rectangular Pipe)-1.4301/1.4306/1.4311/1.4541/1.4550/1.4401/1.4404/1.4571    
DIN17456  General Purose Seamless Circular Stainless Steel Tubes-1.4301/1.4306/1.4311/1.4541/1.4550/1.4401/1.4404/1.4571     
DIN17457  Welded Circular Austenitic Stainless Steel Tubes Subject to Special Requirements-1.4301/1.4306/1.4311/1.4541/1.4550/1.4401/1.4404/1.4571     
DIN17458  Seamless Circular Austenitic Stainless Steel Tubes Subject to Special Requirements-1.4301/1.4306/1.4311/1.4541/1.4550/1.4401/1.4404/1.4571     
DIN17671  Wrought Copper and Copper Alloy Tubes Properties         
DIN 59410 Hollow Sections for Structural Steel Engineering ot Formed Square and Rectangular Steel Tubes Dimensions, Weights, Perissible Deviations, Static Values     
DIN 59411 Hollow Sections for Structural Steel Engineering Cold Formed Welded Square and Rectangular Steel Tubes Dimension, Weights, Permissible Deviations, Static Va es