The product is manufactured by the cold drawing method, so that the inner wall of the steel pipe forms the inner wall spiral reinforcement of special geometric size. The finished product adopts protective gas heat treatment, so that the steel pipe has stable performance and good surface quality.

Products can be ordered according to user's design requirements.

Standard: American Society of Mechanical Engineers standard

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

American Society for Testing Materials Standards

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

The European Union standards

EN 10216-2

German industrial standard

DIN 17175

Chinese National Standard

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

Japanese industrial standard

JIS G 3456, JIS G 3461, JIS G 3462

USES: Used in the manufacture of boiler water wall, economizer, reheater, superheater and steam pipe.