Alloy 2304 Stainless Steel

WLD Steel is a leading manufacturer, supplier and exporter of the duplex stainless steel 2304 available in a number of different sizes and forms including pipe, tube, sheet, plate, bar, rod and other shapes like angle, channel, circle, cut piece and so on.

Alloy 2304 is a type of low alloy molybdenum-free duplex stainless steel. It has a structure that is a balance of Ferritic and Austenitic and has good resistance to pitting and crevice corrosion, the duplex stainless steel grade 2304 is often used as a replacement material for Alloys 304L and 316L but twice yield strength of 304L/316L, widely used in boilers and pressure vessels, chemical plants and oil refinery pipelines, amine recovery equipment, hydrocarbon fermentation equipment, preheaters for the pulp and paper industry, etc.

What are the 2304 steel available forms and specifications at WLD Steel?

Sheet/plate/coil Seamless pipe/tube Welded pipe/tube Round bar Formed steel(Shaped)
JIS G4304 / 4305, ASTM A240 ASTMA789,


ASTM A928 ASTM A479, ASTM A276 ASTM A276

Alloy 2304 Equivalent Materials

S32304 SS232(SAF2304) DP11 1.4362 –


UN23 Z3 CN 23.04 Az 00Cr23Ni4N

Alloy 2304 Chemical Composition

C  Si Mn S P  Cr Ni Mo N Cu
≤ 0.030 ≤ 1.0 ≤ 2.5 ≤ 0.030  ≤ 0.040  21.5 – 24.5 3.0 – 5.5 0.05 – 0.6 0.05 – 0.20 0.05 – 0.6

Alloy 2304 Mechanical Properties

Grades Tensile strength

min, Mpa

Yield strength

0.2% offset, min, Mpa

Elongation, A5%
UNS S32304 758 448 30