High pressure boiler tube specification, material, standard execution

10-630 gauge: diameter, wall thickness of 2.0-80

Material quality: 20 g, 20 MNG, 25 MNG, 15 mog, 20 crmog mog, 12, 15 crmog, 12 cr2mog, 12 crmovg, 12 cr18ni11nb cr18ni9 cr3movsitib, 1, 1

Scope of application: used for low intermediate pressure boiler (working pressure is generally not more than 5.88 Mpa, working temperature below 450 ℃) of the heating surface pipe; Used for high pressure boiler (working pressure generally above 9.8 Mpa, working temperature between 450 ℃ ~ 650 ℃) of the heating surface pipe, economizer, superheater, reheater tube, petrochemical industry

High pressure boiler tubes, in addition to ensure that the chemical composition and mechanical properties by root do water pressure test, flaring, flattening test. Steel tube to heat treatment state delivery. In addition, the microstructure and grain size of finished steel pipe, the decarburization layer also has certain requirements.

Execution standard: high pressure boiler tube DIN17175 ASTMA106 GB5310-2008-2008-2008