321/321H Stainless Steel

WLD Steel is a leading manufacturer, supplier and exporter of the stainless steel 321/321H available in a number of different sizes and forms including pipe, tube, sheet, plate, bar, rod and other shapes like an angel, channel, circle, cut piece and so on. Type 321 (UNS S32100) is titanium stabilized Austenitic stainless steel with excellent resistance to intergranular corrosion and high-temperature properties. Alloy 321H (UNS S 32109) is the higher carbon version of the alloy,  was used for where enhanced creep resistance required or higher strength at temperatures above 537°C.

What’s the 321/321H available forms and specifications at WLD Steel?

Sheet/Plate/Coil Seamless Pipe/Tube Welded Pipe/Tube Round Bar Formed Steel(Shaped)
ASTM A240 ASTM A789

ASTM A790

ASTM A928 ASTM A276

ASTM A479

ASTM A276

321/321H Steel Equivalent Materials

Standards DIN UNS JIS GB
321 1.4541 / 1.4878 S32100 SUS321 06Cr18Ni11Ti
321H / 321S20 SUS 321H /

321/321H Chemical Composition

Grades Cr Ni C Si Mn P S Ti
321 17.0
-19.0
9.0
-12.0
0.08 0.75 2.0 0.045 0.03 ≤5 x (C + N) min.-0.70
321H 17.0
-19.0
9.0
-12.0
0.04-
0.10
0.75 2.0 0.045 0.03 ≤4 x (C + N) min.-0.70

321/321H Mechanical Properties

Grade Tensile Strength Yield Strength 0.2% Elongation -% Hardness
321/321H 515 205 40 217Brinell