Urea Class Stainless Steel
UNS S31050


W.Nr. 1.4466
inconel alloy 600 round bar rod

725LN Urea Class Stainless Steel Bars

Incoloy 825 plate

725LN Urea Class Stainless Steel Plates

About 725LN Urea Class Stainless Steel

725ln urea class stainless steel

What is 725LN Urea Class Stainless Steel?

Grade 725LN urea class stainless steel, also referred to as the UNS S31050/W.Nr. 1.4466 alloy.

High Ni and Mo austenitic grade with similar corrosion resistance to 904L stainless steel.

The content of Cr and Ni in 725LN urea stainless steel is higher, and the contents of C and S and P are lower.

The whole austenite structure is obtained after solution treatment, which has better corrosion resistance to urea medium.

This alloy is widely used in carbon dioxide stripper stripping and distribution pipes and other urea production equipment.

Grade 725LN stainless steel is available in forms including round rod, bar, plate and sheet products.

725LN Urea Class Stainless Steel Standards




AMS 5521

725LN Urea Class Stainless Steel Chemical Composition

The chemical components of grade 725LN stainless steel is summarized in the following table:

725LNASTM A240≤0.03≤0.40≤2.00≤0.030≤0.01524.00-26.0021.0-23.02.0-3.0

725LN Urea Class Stainless Steel Data Sheet

725LN Urea Class Stainless Steel Equivalent Grades

Alloy 725LN1.4466S31050

725LN Urea Class Stainless Steel Mechanical Properties

DensityMelting RangeTensile StrengthYield Strength (0.2%Offset)Elongation
7.90 g/cm31375 – 1400°C≥490Mpa≥190Mpa≥25%

725LN Urea Class Stainless Steel Related Resources

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