DIN- Deutsches Institut für Normung

Deutsches Institut für Normung

The remit of DIN German Institute for Standardization is to encourage, organize, steer and moderate standardization and specification activities in systematic and transparent procedures for the benefit of society as a whole, while safeguarding the public interest.


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 (St 35,4/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 (StE255/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 Values

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Seamless steel pipe >>

Seamless steel pipe >>
Seamless steel pipe is alos called CDS pipes (Cold drawn seamless pipe).

Flanges General

Flanges General
A flange is a method of connecting pipes, valves, pumps and other equipment to form a piping system.

Weldable Components

Weldable Components
Weldable components are used to connect pipes that include elbow, tee, cross, reducer & bending.