Heat Exchanger Tubes Specification
EuropeEN 10216-5* Seamless steel tubes for pressure purposes
EN 10217-7 Welded steel tubes for pressure purposes
Technical Delivery Conditions - Part 7: Stainless Steel Tubes.
This standard will replace most of the standard for welded stainless steel tube and pipes for pressure purposes within the CEN countries. It is similar to DIN 17457 and SS 219711.
The standard prescribes 100 % non-destructive testing. This gives a possible design utilization of 100%, and a weld factor z = 1.0. Heat treatment may be omitted if agreed. The standard inspection is normally in accordance with EN 10204 3.1.
France
NF A 49-247
Tubes soudés longitudinalement pour échangeurs de chaleur -Aciers inoxydables austénitiques.
Germany
AD 2000-Merkblatt W 2 erkstoffe für Druckbehälter - austenitische und austenitische-ferritische Stähle.
USA
ASTM A 249/A 249M
Welded austenitic steel boiler, super heater, heat exchanger and condenser tubes.
A 213 / A 213M
Seamless ferritic and austenitic alloy steel boiler, superheater and heat exchanger tube
ASTM A 269
Seamless and welded austenitic stainless steel tubing for general service. ASTM
A 789/A 789 M
Seamless and welded ferritic/austenitic stainless steel tubing for general service.
ASTM B 674*
Standard specification for UNS N08904 and UNS N08925 welded tube.
*Tubes of these grades can also be supplied according to the common specifications A 249 and A 269 for austenitic iron-based grades.
Outgoing Standards
Germany
DIN 17457
Geschweisste Kreisförmige Rohre aus austenitischen nichtrostenden Stählen für besondere Anforderungen.
Sweden
SS 21 97 11
Stainless steel - pressure vessel tubes, condition 23. Inspection class l. SS 21 97 13
Stainless steel - pressure vessel tubes, condition 25. Inspection class II.
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