资源介绍:  

This part of ISO 9330 specifies the technical delivery conditions for electric resistance and induction welded tubes of circular cross-section having wall thickness up to and including 16 mm, made of unalloyed and alloyed steels with specified low temperature toughness properties. These tubes are intended for low temperature piping systems.

The requirements of appropriate international application standards and relevant national legal regulations shall be taken into account by the user. For boilers and pressure vessels ISO 5730 is available.

The following parts of ISO 9330 are now available or are being prepared:
- Part 1:  Unalloyed steels with specified room temperature properties (partial revision of ISO 2604,3:1975 and of ISO 2604-6:1 978).
- Part  2: Electric resistance and induction welded unalloyed and alloyed steel tubes with specified Elevated temperature  properties ( partial revision of ISO 2604-3:1975).
- Part 4:  Submerged arc-welded unalloyed and alloyed steel tubes with specified elevated temperature properties (partial revision of ISO 2604-6:1978).
- Part 5: Submerged arc-welded unalloyed and alloyed steel tubes with specified low temperature properties (partial revision of ISO 2604-6: 1978).
- Part 6: Longitudinally welded austenitic stainless steel tubes (revision of ISO 2604-5:1978).

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