Material No.: K 31653

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

Description

EN symbol (short)X2CrNiMoN17-13-3
Material No.1.4429
AFNORNF EN100 028-7(01-2000)
BSB.S. EN100 028-7(01-2000)
Registered work's labelCronifer® 1812LCN
Density kg/dm37,98
Hardness HB<=250
Compositionnitrogenous special steel with molybdenum addition and controlled iron content
CategoryStainless steels
Corrosion resisting steels and alloys
Structureaustenitic
Corrosionnon-corroding
Additional characteristicsNo translation!
No translation!
Descriptionresistant to intercrystalline corrosion

Chemical Composition

 CMnPSCrMoSiNNi
K 31653Min %         
Max %         
1.4429Min %    16,502,50 0,12011,00
Max %0,032,000,0450,01518,503,001,000,22014,00
(Key to steel 2010)

Physical properties

PropertyValue
Density: kg/dm37,98
Hardness: HB<=250
Rockwell Hardness Number max.B90 (TP316 LN-ASTM A 249)
magnetizableno
polishablegood
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 / 68500 (--)15 (--)0,75 (--)  
100 / 212    16,5 (--)
200 / 392    17,5 (--)
300 / 572    17,5
400 / 752    18,5 (--)
500 / 932    18,5 (--)
Temperature0,2% Yield strength
in high
temperature		1,0%
Yield strength
in high
temperaturea		Tensile strenght

in high
temperatures
°C / °FRp 0.2Rp 1.0Rm
N/mm2 / ksiN/mm2 / ksiN/mm2 / ksi
100 / 212225 / 32,62260 / 37,71520 / 75,4
200 / 392178 / 25,80208 / 30,17460 / 66,7
300 / 572155 / 22,48185 / 26,83440 / 63,8
400 / 752145 / 21,03175 / 25,38435 / 63,0
500 / 932138 / 20,01168 / 24,37430 / 62,3
ksi value calculated

Mechanical properties (20°C / 68°F)

1% Yield strength Rp1,0 (Mpa/ ksi)
Yield strength min. ksi (Mpa)		>330 / >47,8
30 /205
Tp 316LN (ASTM A 249)
0.2% Yield strength Rp 0.2 (Mpa/ ksi)>295 / 42,8
Tensile strength N/mm2
Tensile strength ksi (Mpa)		580-800 /84,1-116
80 (550)
Tp 316LN (ASTM A 249)
Elongation A5 ( % ) Elongation ( % )>35
35		lengthwise
in 2in.or 50 mm
Tp 316LN (ASTM A 249)
impact work ISO-V (J)>85lengthwise

Temparature information

Application area
Operation temperature-454 ºF  to 932 ºF in strain situation III (to- 474°F )
Solution heat treatment
Working temperature1904 ºF  to 2048 ºF 
Explanation reportcool down:water/air
Solution heat treatment
Working temperature2102 ºF  to 1382 ºF 
Explanation reportquench hardening advised
Processing informationsforming in low temperatures

Standards / information

StandardsDesciption

Process information

Cold formingcold processes well- heat treatment only required under strain in danger of cold cracking
Welding
 - Material classification acc. CEN ISO/TR 156088,1
 - Typewell weldable
No translation!
Welding wire
 - Add. material1.4430;1.4455

Main fields of application

Details of application
CertificationsCertified for purchase obligating pressure containers in accordance to AD-information sheet W2
Fertiliser industry
Chemical IndustryHarnstoffherstellung
crude oil
building industry
food processing industry
Apparatus engineering

Range of products

Product typeProduct
Plates / Sheetsplates/sheets
Fittingswelded elbows
welded reductions
Welded T-pieces
seamless elbows
seamless reductions
seamless T-pieces
Flanges / Collars / Flared tube endscollars
weld neck flange/blind flange
Pipes / Tubeswelded pipes/tubes
seamless pipes/tubes
Round barstripped
peeled
forged raw
Bar steelsection 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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