Products

TP 321 - 1.4541

Wst. 1.4541

UNS S32100

Stock program: Some sizes on stock, mainly on request

Specification: ASTM A 269/A 213/ASME SA 213 / EN 10216-5/EN 10305 / NACE MR0175/PED 97/23 EC

Maximum service temperature: 650°C / 1205°F


Alloy 321 stainless steel is a titanium-stabilized version of alloy 304, used in particular applications within the sensitizing temperature range. Its resistance to sensitization, coupled with higher strength at high temperatures makes it suitable in application where alloy 304 will become sensitized, or where 304L has insufficient hot strength.


Characteristics

  • Excellent resistance to high-temperature corrosion
  • Excellent formability
  • Higher creep resistance
  • Good resistance for intergranular corrosion when expose in midly corrosive environments

Market applications:

  • Chemical & refineries
  • Power plants
  • Super heater and after burner parts
  • Furnace components

Technical details

Technical composition (%)
Fe
Cr
Ni
Mn
Si
P
C
S
Ti
321 min
Bal.
17.0
9.0
-
-
-
-
-
-
  max
-
20.0
13.0
2.00
0.75
0.030
0.080
0.040
0.040
Mechanical properties
321
Tensile strenght (mpa, min)
500 - 730
Yield strength (0.2% offset mpa, min)
200
Elongation (%, min)
35
Density / weight (g / cm3 / kg)
7.90

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