It is used as a water wall tube loaded with a highly heated flux and is also expected to find broadened other uses in the viewpoint of its energy saving effect and higher safety against the overheating damage.

This has a groove on its inside surface which functions to raise thermal efficiency by distrubing the fluid within the tube,featuring an extremely high thermal conduction property.

Standard:

American society of mechanical engineers

ASME SA-106、ASME SA-192M、ASME SA-209M、ASME SA-210M、ASME SA-213M、ASME SA-335M

American Society for Testing and Materials

ASTM A 106M、ASTM A 192M、ASTM A 210M、ASTM A 213M、ASTM A 335M

European Standards

EN 10216-2

Deutsche industrie normen

DIN 17175

Chineses National Standards

GB 3087、GB 5310、GB 6479、GB 9948、GB/T 13296

Japaneses industrial standards

JIS G 3456、JIS G 3461、JIS G 3462

Uses:

For manufacture wall panel, economizer, reheater, superheater and steam pipeline of boilers.