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Stainless Steel Alloy 904L Flanges

Stainless Steel Alloy 904L Flanges | SS Alloy 904L Flanges | SS Alloy 904L Flanges Manufacturer | SS Alloy 904L Flanges Exporter

Grade 904L stainless steel flanges 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 steel is also resistant to stress corrosion cracking and crevice corrosion. Grade 904L flanges is non-magnetic, and offers excellent formability, toughness and weldability.

Grade 904L flanges contains high amounts of expensive ingredients, such as molybdenum and nickel. Today, most of the applications that employ grade 904L plate are replaced by low-cost duplex stainless steel 2205. The following sections describe the properties of flat rolled products in ASTM B625. The specifications may not be identical for other products such as bar, tube and pipe.

Applications

  • Aerospace – piston engine manifolds
  • Chemical Processing
  • Expansion Joints
  • Food Processing – equipment and storage
  • Petroleum Refining – polythionic acid service
  • Waste Treatment – thermal oxidizers

Benefits

  • Higher creep stress and rupture properties when compared with 304
  • Ideal for high temperature service
  • Overcomes sensitization and intergranular corrosion concerns
  • Can be used in elevated temperature applications for ASME Boiler and Pressure Vessel Code applications
  • Excellent mechanical properties

Chemical Composition

Grade

C

Mn

Si

P

S

Cr

Mo

Ni

Cu

904L

min.

max.

-

0.02

-

2

-

1

-

0.045

-

0.035

19

23

4

5

23

28

1

2

Mechanical Properties

Grade

Tensile Strength (MPa) min

Yield Strength 0.2% Proof (MPa) min

Elongation (% in 50mm) min

Hardness

Rockwell B (HR B)

Brinell (HB)

904L

490

220

36

70-90 typical

150

Calico Metal Ind Pvt Ltd exports their products to countries like UAE, Bahrain, Italy, Indonesia, Malaysia, United States, Mexico, Chine, Brazil, Peru, Nigeria, Kuwait, Jordan, Dubai, Thailand (Bangkok), Venezuela, Iran, Germany, UK, Canada, Russia, Turkey, Australia, New Zealand, Sri Lanka, Vietnam, South Africa, Kazakhstan & Saudi Arabia.

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