Material No.: S 31803

DescriptionChemical
composition		Physical
mechanical
properties		Temparature
information		StandardsProcess
information		Application
Certification		ProductsAll

Description

EN symbol (short)X2CrNiMoN22-5-3
Material No.1.4462
AFNORX2CrNiMoN 22-5-3 / NF EN 10088-5 (03/2009) (FR)
BSX2CrNiMoN 22-5-3 / B.S EN 10088-5 (03/2009) (GB)
Registered work's label*Cronifer® 2205 LCN
Density kg/dm37,8
Hardness HB 30<=270
Compositionchromium nickel molybdenium steels
CategoryCorrosion resisting steels and alloys
Structureduplex (ferritic/austenitic)
Corrosionstainless
chemically resistant
Additional characteristicsNo translation!
DescriptionThis material shows high resistance to pitting corrosion and intercrystalline corrosion additionally to great firmness.
However it also has a tendency to 840°F embrittlement.

Chemical Composition

 CMnPSCrMoSiNiN
S 31803Min %    21,002,50 4,500,08
Max %0,0302,000,0300,02023,003,501,006,500,20
ASTM A 790 (S 31803)
1.4462Min %    21,002,50 4,500,100
Max %0,0302,000,0350,01523,003,501,006,500,220
(Key to steel 2010)

Physical properties

PropertyValue
Density: kg/dm37,8
Hardness: HB 30<=270
Brinell
Hardness Rockwell C		290 (S 31803-ASTM A 790)
30,5 (S 31803-ASTM A 790)
magnetizableyes
polishableyes
Temperature T
°C/F
(°C/F)		Specific heat
J / kgK
(Btu / lb °F)		Thermal conductivity
W/mK
(Btu·in / ft2·h·°F)		Electric resistance
µΩ · cm
(Ω circ mill / ft)		Modulus of elasticity
kN/mm2
(103 ksi)		Expansion rate from 70°F bis T
10-6 / K
(10-6 / °F)
20 / 68450 (-)17 (-)0,77(-)200 (-)13,0 (-)
100 / 212   194 (-)13,5 (-)
200 / 392   186 (-)14,2 (-)
300 / 572   180 (-)14,6 (-)
Temperature1,0% Yield strength

in high temperatures		0,2% Yield strength

in high temperatures
°C / °FRp 1,0Rp 0,2
N/mm2 / ksiN /mm2 /ksi
100 / 212410 / 59,4360 / 52,2
200 / 392350 / 50,7310 / 44,9
250 / 482335 / 48,6295 /42,8
300 /572320 / 46,4280 /40,6

Mechanical properties (20°C / 68°F)

Yield strength (0,2%) (N/mm2-min./ ksi)450 / 65,2
Yield strength 1% N/mm2 min.
Yield strength ksi (Mpa)		500 / 72,5
65 /(450)
(S 31803-ASTM A 790)
Tensile strength Rm N/mm2 /ksi)
Tensile strength ksi (Mpa)		680-880 /98,0-127
90 /(620)		cold strip 660/950
(S 31803-ASTM A 790)
Elongation in 2 in or 4D (min.%)
Elongation min.%		25
25
in 2 in.or 50mm
(S 31803-ASTM A 790)
impact work ISO-V -J100

Temparature information

Application area
Operation temperature14 ºF  to 536 ºF 475 ° (sigma phase embrittlement)
Solution heat treatment
Working temperature1832 ºF  to 2048 ºF 
Processing informationscool down:water; air; blanket gas
Solution heat treatment
Working temperature2102 ºF  to 1562 ºF 
Processing informationscool down:air
hardness
Working temperature1868 ºF  to 2012 ºF 
Processing informationsair / water

Standards / information

StandardsDesciption
ASTM A 182Standard Specification for Forged or Rolled Alloy-Steel Pipe Flanges,Forged Fittings and Valves and Parts for High-Temperature Service
ASTM A 240sheet metal and ribbons from stainless Cr and Ni pressure containers
ASTM A 276 Rods and cross-sections made of stainless and heat-resistant steel
ASTM A 790Standard Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Pipes
DIN EN 10296-2 (02/2006)welded circular steel pipes for machine construction and general technical applications, stainless steel
SEW 310 (08/1992)physical properties of steel
SEW 400 (1997-02)Rolled and forged stainless steels
VdTÜV / Werkstoffblatt 418ferritic austenic rolled / forged steel, X2CrNiMoN 22-5-3, material-nr. 1.4462

Process information

Cold formingheat treatment not necessary if degree of deformation <10%
Chip removing processdoesn't tend to smear
Welding
 - Material classification acc. CEN ISO/TR 1560810,1
 - Typewell weldable
Laser welding
No translation!
 - Add. material1.4462
 - HintsNo translation!

Main fields of application

Details of applicationfor use in: high temperature chloride contaminated water; sea water; brakish water: deteriorating solid matters; sour gas
-Petrochemistry; ocean engineering
-polishable
Certificationshardness conforms to NACE MR0175
Chemical Industry
Apparatus engineering
cellulose/paper industry
offshore plantsMeerwasserentsalzungsanlagen
Environmental technologyKläranlagen
food processing industry
crude oil

Range of products

Product typeProduct
Processing / Constructionfrom sheets
from pipes, fittings, flanges (welded)
from bar steel (turning, milling)
Plates / Sheetsplates/sheets
plate/sheet cuts
FittingsWelded T-pieces
seamless elbows
seamless reductions
seamless T-pieces
Other Fittings a.o. Weldolets, Nipples
Flanges / Collars / Flared tube endsflared tube end
collars
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 barrolled
forged raw
Bar steelflat steel
section steel

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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