1. Rationale
Refine the weld bead tolerance exceptions for small OD (less than 0.500) tubes. Accurate measurements become increasingly problematic and we find that small OD A249 product (less than 0.500) is not used with the expectations commonly required of larger heat exchanger sizes.
Keywords
austenitic stainless steel; boiler tubes; condenser tube; heat exchanger tube; high temperature applications; steel tube; superheater tubes; temperature service applications, high; welded steel tube and heavily cold worked (HCW) tubes; Austenitic stainless steel tube--specifications; Boiler/superheater tubes--specifications; Condenser and heat exchanger systems--steel; High-temperature service applications--steel tube; Superheater tubes--specifications; Welded steel tube--specifications;
Citing ASTM Standards
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