STAINLESS STEEL

AISI 904L | EN 1.4539

Description

Grade 904L stainless steel is a non-stabilized austenitic stainless steel with low carbon content. This high alloy stainless steel is added with copper to improve its resistance to strong reducing acids, such as sulphuric acid. The stainless steel is also resistant to stress corrosion cracking and crevice corrosion. This stainless steel grade is non-magnetic, and offers excellent formability, toughness and weldability. It contains high amounts of expensive ingredients, such as molybdenum and nickel. Raykam observed, most of the applications that employ grade 904L are replaced by low-cost duplex stainless steel 2205. It is reasonable to expect specifications in these standards to be similar but not necessarily identical to those given in this data sheet.

Applications of 904L

Chemical processing equipment
Oil and gas pipelines, offshore platforms, and heat exchangers
Marine equipment and shipbuilding
Pulp and paper production equipment
Aerospace components
Cryogenic applications, such as in the production of liquefied natural gas (LNG)
Medical equipment
Food processing equipment
Architecture and construction materials
Pharmaceutical equipment
Power generation equipment, such as boilers and turbines
Chemical tankers and transport containers
Heat exchangers and condensers in the petrochemical industry
Desalination plants
Pollution control equipment, such as scrubbers and filters
Mining equipment, such as screens, crushers, and conveyors
Automotive components, such as exhaust systems and fuel tanks
Springs and wire products
Nuclear power plants
Industrial valves and fittings