Material No.: 1.4529

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

Description

EN symbol (short)X1NiCrMoCuN25-20-7
Alloy 926
UNSN 08926
AFNORX1NiCrMoCuN25-20-7 / EN 10088-1(06-2005) (FR)
BSX1NiCrMoCuN25-20-7 / EN 10088-1(06-2005) (GB)
Registered work's labelCronifer® 1925hMo
Density lb/in.30,293
Hardness HB
Rockwell Hardness Number max.		<= 250
B100 (N08926-ASTM A249)
Compositionspecial steel with high molybdenum and nitrogen content
CategoryCorrosion resisting steels and alloys
Structureaustenitic
Corrosionagainst crevice corrosion
non-corroding
satisfactionary against pitting corrosion
Additional characteristicsresistant against oxidation,nitridation,carbonisation
DescriptionExtremely high durability in sulfuric substances containing chlorine.

Chemical Composition

 CSiMnPSCrMoNiCuNFe
1.4529Min %     19,006,0024,000,500,15 
Max %0,020,501,000,0300,01021,007,0026,001,500,25 
(Key to steel 2010)
alloy 926
N 08926		Min %     19,006,0024,000,500,15balance
Max %0,0200,502,000,030,0121,007,0026,001,500,25balance
ASTM B 677 (UNS N 08926)

Physical properties

PropertyValue
Density: lb/in.30,293
Hardness: HB
Rockwell Hardness Number max.		<= 250
B100 (N08926-ASTM A249)
Permeabilität bei 20°C/68°F1,01
magnetizablemight be slightly magnetic
might increase through cold deformation
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 / 68
93 / 200		415 (0,098)
.... (0,103)		12,0 ( 83)
..... ( 89)		96 (577)
.... (594)		193 (28)
..... (27)		..... .....
16,6 (9,2)
200 / 392
204 / 400		470
..... (0,112)		14,4
.... (100)		104
.... (626)		179 .......
..... (26)		16,6 (9,2)
16,6 (9,2)
400 / 752
427 / 800		510
...... (0,122)		18,5
.... (131)		112
..... (679)		168 .......
(24) ........		16,6 (9,2)
16,6 (9,2)
500 / 932
538 / 1000		520
..... (0,124)		20,1
..... (143)		115
..... (695)		163 .......
(23) .......		16,9 ( 9,4)
17,0 ( 9,4)
600 / 1112525 ........21,6 ... .117 ..... 17,3 (9,6)
Temperature0,2%
Yield strength
in high temperatures		1,0 % Yieldstrength
in high temperatures
°C / °FRp 0,2Rp 1,0
N/mm2 / ksiN/mm2 / ksi
100 / 212230 / 33,4270 / 39,1
200 / 392190 / 27,6225 / 32,6
300 / 572170 / 24,7205 /29,7
400 / 752160 / 23,2190 727,6
to ca 20 mm section thickness
ksi calculated value

Mechanical properties (20°C / 68°F)

Yield strength Mpa/ (ksi)

Yield strength ksi (Mpa)		295 /(43)

43 (295)		to 20 mm/(solution anneales)
(solution anneales)

N 08926 (ASTM A 249)

Tensile strength Rm Mpa/(ksi)

Tensile strength ksi (Mpa)		600-800 /(87,00-116,00)

94 (650)		to 20 mm (solution
anneales)
(solution anneales)
in 2 in.or 50mm


N 08926 (ASTM A 249)

Elongationmin.min. %

Elongation min.%
35

35
(solution anneales)

(solution anneales)
in 2 in.or 50mm



N 08926 (ASTM A 249)
impact work (ISO-V)> 100 J /60 J<=160 mm- lengthwise /Transveser

Temparature information

Application area
Operation temperature-321 ºF  to 752 ºF approved for pressure containers
Solution heat treatment
Working temperature2012 ºF  to 2156 ºF 
Explanation reportaccelerated water cooling
Solution heat treatment
Working temperature2102 ºF  to 1652 ºF 
Explanation reportshort cool down time: water/air

Standards / information

StandardsDesciption
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 B 366Standard Specification for Factory-Made Wrought nickel and nickel alloy fittings
ASTM B 673Standard Specification for Welded Pipe
ASTM B 674Standard Specification for Welded Tube
ASTM B 677Standard Specification for UNS N08904,N08925 and N08926 Seamless Pipe and Tube
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 10297-2 (02/2006)Welded circular steel pipes for machine construction and general technical service stainless steel. Pipes made from stainless steel
SEW 400 (1997-02)Rolled and forged stainless steels

Process information

Cold formingsolution annealed, increasing mechanical properties
Chip removing processpreferable in solution annealed state; mind cold work hardening properties
Welding
 - Material classification acc. CEN ISO/TR 156088.2
 - Typewell weldable
WIG
covered electrode
MAG
 - Add. material2.4607;2.4621,2.4831;

Main fields of application

Details of applicationexcellent corrosion resistance in application areas involving oxidising/reducing substances
Certifications( NACE MR0175 /ISO15156 )
Chemical Industryfor processing nitric acid
for processing phosphoric acid
Flue gas desulphurisation plantsvarious components
Environmental technologyclarification plants
offshore plantsSea water desalination plant

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 elbows
welded reductions
Welded 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
seamless pipes/tubes
Round barstripped
peeled
forged raw
Bar steelflat steel
section steel
round bar steel
hexagon 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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