ASME SB338 Grade 7 Titanium Alloy Steel Tube for Condenser Boiler

ASME SB338 GR7 Titanium Alloy Steel Tube for Condenser and Boiler Application

ASME SB338 is a titanium and titanium alloy seamless/welded tube standard jointly developed by the American Society of Mechanical Engineers (ASME) and the International Society for Testing and Materials (ASTM), equivalent to standard ASTM B338, covering the requirements for 28 grades titanium and titanium alloy tubes used for surface condensers, evaporators, and heat exchangers. Seamless tubes under this standard are mainly formed by cold rolling or hot extrusion, and are preferred for use in high-pressure systems, while welded tubes are mainly produced by roll welding and annealing, with lower costs and suitable for medium and low pressure working environments.

ASME SB338 GR7 Boiler, Condenser and Heat Exchanger Tube Chemical Composition

ASME SB338 Grade 7 is one of the most corrosion-resistant grades among titanium materials. The key reason is that palladium element has the characteristic of quickly and stably forming a passive film in corrosive environments, which is also the key advantage of GR.7 titanium alloy steel tubes. At the same time, titanium element provides a lightweight and high-strength foundation for tubes, and iron element controls the content of impurities in tubes.

ASME SB338 Grade 7 Titanium Alloy Steel Tube Heat Exchanger Tube Mechanical Properties

ASME SB338 Titanium Alloy Steel Tube Application

• Chemical Process Industry: ASME SB338 GR.7 titanium alloy steel tube can be used to manufacture heat exchangers, condensers, piping, and reactors for handling media containing chlorides, acids, or alkalines.

• Oil and Gas Industry: ASME SB338 GR.7 titanium alloy steel tube can be used in heat exchangers for offshore platforms to handle corrosive crude oil and produced water.

• Power Industry: In flue gas desulfurization (FGD) systems at thermal power plants or waste-to-energy plants, ASME SB338 GR.7 titanium alloy steel tube can be used to cope with corrosive environments containing chloride ions and sulfuric acid.

• Marine Engineering: ASME SB338 GR.7 titanium alloy steel tube can be used in seawater desalination plants, ship cooling systems, etc.

• Pharmaceutical and Food Industry: ASME SB338 GR.7 titanium alloy steel tube can be used for equipment piping requiring high purity and corrosion resistance.