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. This steel is also resistant to stress corrosion cracking and crevice corrosion. Grade 904L is non-magnetic, and offers excellent formability, toughness and weldability. Grade 904L contains high amounts of expensive ingredients, such as molybdenum and nickel.
ASTM A312 Standard Specification for Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes
Refineries; Nuclear Plant; Aerospace Industry; Chemical Fertilizer; Petrochemicals' Oli & Gas and etc.
3. Materials & Manufacture
Pipe shall be either hot finished or cold finished;
The pipe shall be free of scale and contaminating exogenous iron particles. Pickling, blasting, or surface finishing is not mandatory when pipe is bright annealed.
4. Chemical Requirements
|Chemical Composition %|
5. Tensile Requirements
|Grade||UNS Designation||Tensile Strength, min|
|Yield Strength, min|
|…||N08904||71 (490)||31 (215)|