Manufacturing Norms
and Explanations


1. EN 10217-7: Welded pressurized stainless steel pipes for general use

2. EN 10357: Welded stainless steel pipes used in food and chemical (cosmetics) industry

3. DIN 11850: Welded stainless steel pipes used in food and chemical (cosmetics) industry (German version)

4. EN 10296-2: Welded stainless steel pipes for general use (not subject to obligations for methods). These types of pipes are manufactured as HF welded for purposes of more cost-efficient manufacture.

5. ASTM A778: Welded stainless steel pipes without thermal process (no tempering)

6. ASTM A554: Welded stainless steel pipes used in construction. These pipes are also defined as “Ornamental Pipes” since they can be used for decorative purposes. They are basically HF welded pipes with low cost, and they are not recommended for use in processes.

7. ASTM A358: Stainless steel pipes manufactured with EFW (electrical fusion welding). Each pipe undergoes radiography test during manufacture of these pipes. (X-Ray Control). During this welding, both edges of the steel roll is heated to the melting point with the electrical resistance, and the welding process is completed with the help of the welding filling material without applying any pressure.

8. ASTM A312: Welded or weldless (drawn) stainless steel pipes with thermal processing for general use

9. ASTM A249: Welded stainless steel pipes manufactured with thermal processing for use in manufacture of exchangers

10. ASTM A270: Welded or weldless (drawn) stainless steel pipes manufactured with thermal processing for use in sanitary applications (food, cosmetics, special production drugs)

11. ASTM A269: Welded or weldless (drawn) tubings manufactured with thermal processing for general use. (Generally used in instrumentation applications)

12. ASTM A213: Weldless (drawn) tubings manufactured with thermal processing for use in manufacture of exchangers and super-heaters

13. EN10296-5: Weldless (drawn) stainless steel pipes manufactured with thermal processing for general use and pressure purposes in European norms

14. EN10219-2: Welded, cold-worked box profile manufacturing standard.

15. ASTM A790: Standard for welded or weldless stainless steel pipes with ferritic/austenitic structure (duplex).

16. ASTM A789: Tubes standard for welded or weldless stainless steel tubings with ferritic/austenitic structure (duplex).






 


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