DIN standards is short for “Deutsches Institut für Normung”. It means “German institute for standardization”. Founded in 1917, it is just a German national standardization organization, but also a member agency on behalf of Germany membership in ISO. It is headquartered in Berlin.

As a standardizing competent authority in Germany, DIN participates in international and regional non-governmental standardizing institutions. It is also a registered private association with approximately 6,000 industrial companies and organizations for their members. Currently, there are 123 standard committees and 3655 working committees.

DIN 1629 Structural Seamless Tube This DIN standard steel tube is applicable for manufacturing pipelines, containers, equipment, pipe fittings and steel houses. These structural steel pipes are predominantly used in construction of chemical plants, vessels, pipeworks and for general mechanical ...

DIN 17175 Seamless Steel Boiler TubesThis DIN pipe is widely used in boiler industry, petroleum, chemical industry, chemical fiber, metallurgy, medicine, machinery, paper, heat preservation, refrigeration, mechanical equipment, food, electricity, water, construction, aviation, aerospace, marine however...

DIN standard was coded in Germany as a result recognized worldwide as the efficient solution for evaluating steel pipes. Through common cooperation, it aims to promote their applications so to contribute to rationalization, quality assurance, safety and mutual understanding in economy, technology, science, management, public affairs, etc. Undoubtedly are a mainly two product certification marks, namely “DIN Mark” and “DIN Inspection and Supervision Mark”. In addition, there is really a quality certification system.