Material No.: 1.4541



EN symbol (short)X6CrNiTi18-10
UNSS 32100
Grade TP 321
AFNORX6CrNiTi18-10 / NF EN10088-5 ( 03/2009) (FR)
BSX6CrNiTi18-10 / EN 10088-1 ( 06/2005) (GB)
Density kg/dm37,9
Hardness HB130-190
Compositionchromium nickel steel
CategoryStainless steels
steel, resistant to rust and acids
Corrosionresistant to intercrystalline corrosion
with titanium addition, improvement of intercrystalline corrosion, worsens cutting property
Additional characteristicschemically resistant

Chemical Composition

1.4541Min %   17,00 9,00 >=(5xC)
Max %0,081,002,0019,000,01512,000,045<=0,70
(Key to steel 2010) S-content and Cu-content may deviate in some aspects due to different product types
AISI 321Min %   17,00 9,00 >=5xC
Max %0,080,752,0020,000,03013,000,040<=0,70
SA-213 (TP 321)
S 32100Min %   17,00 9,00 >=(5xC)
Max %0,081,002,0020,000,03013,000,045<= 0,70
ASTM A 312 (TP 321)

Physical properties

Density: kg/dm37,9
Hardness: HB130-190
Hardness HB 30<=215
magnetizableno (might increase due to cold deformation)
Temperature T
Specific heat
J / kgK
(Btu / lb °F)
Thermal conductivity
(Btu·in / ft2·h·°F)
Electric resistance
µΩ · cm
(Ω circ mill / ft)
Modulus of elasticity
(103 ksi)
Expansion rate from 70°F bis T
10-6 / K
(10-6 / °F)
20 / 68500 (-)15 (-)0,73 (-)200 (-)16,0 (-)
200 /392   186 (-)16,5 (-)
300 / 572   179 (-)17,0 (-)
400 / 752   172 (-)17,5 (-)
500 / 932   165 (-)18,0 (-)
temperature0,2%Yield strength
in high temperatures
1,0% Yield strength
in high temperatures
°C / °FRp 0,2Rp 1,0
N/mm2 /ksiN/mm2 /ksi
100 / 212176 / 25,50208 / 30,16
200 / 392157 / 22,77186 / 30,00
300 / 572136 / 19,70167 / 24,20
400 / 752125 / 18,10156 / 22,60
500 / 932119 / 17,00149 / 21,60
ksi value calculated

Mechanical properties (20°C / 68°F)

1% Yield strength Rp1,0 (Mpa / ksi)240 / 34,8
Tensile strength Rm (Mpa/ksi)500-700
Elongation A5 (%)40
impact work ISO-V60 J

Temparature information

Application area
Operation temperature ºF  to 1652 ºF 
Explanation reportair
Solution heat treatment
Working temperature1886 ºF  to 2030 ºF 
Processing informationscool down: water;air
Working temperature1832 ºF  to 2012 ºF 
Explanation reportduration 5 min; width 5 mm
Processing informationscool down: water;air
Solution heat treatment
Working temperature2102 ºF  to 1562 ºF 
Processing informationscool down: air

Standards / information

ASTM A 182Standard Specification for Forged or Rolled Alloy-Steel Pipe Flanges,Forged Fittings and Valves and Parts for High-Temperature Service
ASTM A 213 Standard Specification for Seamless Ferritic and Austenitic Alloy-Steel Boiler,Superheater,and Heat-Exchanger Tubes
ASTM A 240sheet metal and ribbons from stainless Cr and Ni pressure containers
ASTM A 249 Standard Specification for Welded austenitic steel boiler, Superheaters, heat-exchangers,and condenser Tubes
ASTM A 269Standard Specification for Seamless and welded, austenic, and stainless steel tubing for general purposes
ASTM A 312 Standard Specification for Seamless and welded austenitic stainless steel pipes
ASTM A 403 Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings
ASTM A 479Rods and cross-sections made of stainless and heat-resistant steel used in boilers and other pressure tanks
DIN EN 10088-1 (09/2005)Stainless steels Part 1: List of stainless steels
DIN EN 10088-3 (09/2005)stainless steels.Technical delivery conditions for semi-finished products,bars,rods,wire selection and bright products of corrosion resisting steels for general and construction purposes
DIN EN 10217-7Welded steel pipes under compression load Pipes made from stainless steel
DIN EN 10296-2 (02/2006)Welded circular steel pipes for machine construction and general technical service stainless steel
DIN EN 10297-2 (02/2006)Welded circular steel pipes for machine construction and general technical service stainless steel. Pipes made from stainless steel

Process information

 - Material classification acc. CEN ISO/TR 156088.1
 - Typewell weldable
submerged arc welding
MAG solid wire
manual arc welding (E)
Laser welding
 - Add. material1.4551.4576;1.4430,1.4551,1.4316
laser welding; consult specialist literature
 - Hintsspecial post heat treating not required

Main fields of application

Details of applicationcertified for delivery acceptance obligating pressure containers in reference to AD data sheet W2
Chemical Industryfor processing nitric acid
the production of acetic acid
food processing industry
crude oil
petrochemical industry
food processing industry

Range of products

Product typeProduct
Plates / Sheetsplates/sheets
plate/sheet cuts
Fittingswelded reductions
Welded T-pieces
seamless elbows
seamless reductions
seamless T-pieces
Other Fittings a.o. Weldolets, Nipples
Flanges / Collars / Flared tube endsflared tube end
various flanges (weld neck flange,blind flange etc.)
weld neck flange/blind flange
Bumped boiler ends / caps / round blanksfrom sheets
from bar steel
Pipes / Tubeswelded pipes/tubes
welded square pipes/tubes
Hollow bar
seamless pipes/tubes
Round barforged raw
Bar steelflat steel
section steel
round bar steel
hexagon steel
Equipmentscrews, screw nuts,shims, straight turning parts, designed components

Liability exclusion

All aforementioned specifications serve as a general orientation and have to be reviewed depending on the conditions of use.
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