Material No.: 1.4835

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

Description

EN symbol (short)X9CrNiSiNCe21-11-2
UNSS 30815
Registered work's label253 MA®
Density lb/in30,28
Hardness HBmax.210
Compositionchromium nickel steel
CategoryHeat resistant steels and alloys
Structureaustenitic
DescriptionApplied as high tempreature material. It's actually 1.4828 with a higher carbon content and an addition of noble earths.

Chemical Composition

 CSiMnCrNiCePSNN
1.4835Min %0,051,40 20,0010,000,03  0,12 
Max %0,122,501,0022,0012,000,080,0450,0150,20 
(Key to steel 2010)
S 30815Min %0,051,40 20,0010,000,03   0,14
Max %0,102,000,0822,0012,000,080,0400,030 0,20
ASTM A 213 (S 30815)

Physical properties

PropertyValue
Density: lb/in30,28
Hardness: HBmax.210
Hardness (vickers)190
magnetizablenon
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 / 680,5 /--15 /-- 200 / -- 
100 / 212    16,5/--
200 / 392   185 --17 /--
300 / 572     
400 / 752   170 /--18 / --
500 / 932     
600 / 1112   155 / --18,5 /--
800 / 1472   135 / --19,0 /--
1000 / 1832    19,5 /--
Temp.Creep strain limitCreep strain limitCreep rupture strengthCreep rupture strengthCreep rupture strength
°C / °F10 000h100 000h10 000h100 000h
°C / °F1%
N/mm2 /ksi		1%
N/mm2 /ksi
N/mm2 /ksi
N/mm2 / ksi
600 / 1112117 /17,070 / 10,1138/ 20,082/191, 
700 / 129246 / 6,625 / 3,662 / 9,033 /4,8 
800 / 147220 / 2,911 / 1,627/ 2,915 / 2,2 
900 / 165210 / 1,45,7 / 0,813 / 1,97,5 / 1,1 
1000 / 18325,4 / 0,83 / 0,47,0/ 1,04,3 / 0,6 
1100 / 2012 2,3 / 0,334,3 / 0,62,6/ 0,4 
ksi value calculated
Temperature0,2% Yield strength
in high temperatures		1%Yield strength

in high temperatures		Tensile strenght

in high temperatures
°C / °F
Mpa /ksiMpa /ksiMpa /ksi
200 / 392230/ / 33,5270/ 39,0555 /80,5
300 / 572   
400 /752180 / 26210 / 31,0470 /68,5
600 / 1112170 / 24,5 /200 / 28,5440 /63,6
800 /1472160 /23190 /27,5420 / 61,0
1000 /1832145 /21175 / 25,5380 / 55
1200 / 2192130 /19,5160 / 23,030 / 46,8
ksi value calculated

Mechanical properties (20°C / 68°F)

Yield strength Rp 0,2Mpa/ksi>=310/>=44,9
Yield strength Rp1,0 Mpa/ksi>=350 />=50,7
Tensile strenght Rm -Mpa/ksi650-850/ 94,2-123,2
Elongation A5 (%)>= 31 />=40lengthwise/transverse
E-Modul (Mpa)200 000

Temparature information

Application area
Operation temperature ºF  to 2012 ºF air: 1922°F
Explanation reportgood mechanical properties and scaling resistance in dry air
avoid temperature ranges from 1112°F-1652°F due to grain disintegration
Solution heat treatment
Working temperature1922 ºF  to 2012 ºF 
Explanation reportcooldown:air /water
Solution heat treatment
Working temperature2102 ºF  to 1652 ºF 
Explanation reportcooldown: air

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 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 276 Rods and cross-sections made of stainless and heat-resistant steel
ASTM A 312 Standard Specification for Seamless and welded austenitic stainless steel pipes
ASTM A 479Rods and cross-sections made of stainless and heat-resistant steel used in boilers and other pressure tanks
DIN EN 10095 (05/1999)heat resistant steel and nickel alloy
DIN EN 10296-2 (02/2006)welded circular steel pipes for machine construction and general technical applications, stainless steel
DIN EN 10297-2 (02/2006)seamless circular steel pipes for machine construction and general technical applications, stainless steel

Process information

Welding
 - TypeElectrode
Welding wire
 - Add. material1.4829

Main fields of application

Details of applicationscaling resistance in air up to 1922°F
low durability in oxidising/reducing atmosphere (especially in sulfuric gas)
Certifications
industral furnace engineering
cement industry
Apparatus engineering

Range of products

Product typeProduct
Processing / Constructionfrom bar steel (turning, milling)
Plates / Sheetsplates/sheets
Fittingswelded elbows
welded reductions
Welded T-pieces
seamless elbows
seamless reductions
seamless T-pieces
Flanges / Collars / Flared tube endsvarious flanges (weld neck flange,blind flange etc.)
Pipes / Tubeswelded pipes/tubes
seamless pipes/tubes
Bar steelround bar 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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