Material No.: AISI 310 S

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

Description

EN symbol (short)X8CrNi25-21
Material No.1.4845
UNSS 31008
Grade TP 310 S
AFNORZ 12 CN 25-20
BS310 S 24
Density kg/dm37,9
Hardness HB 30<= 192
CompositionNo translation!
CategoryHeat resistant steels and alloys
Structureaustenitic
CorrosionNo translation!
Additional characteristicslow durability in oxidising and reducing atmosphere
forge scale temperature 1922 °F

Chemical Composition

 CMnPSSiCrNiMoN
AISI 310 SMin %     24,0019,00  
Max %0,082,000,0450,0301,0026,0022,000,75 
AISI 310 S
1.4845
S 31008		Min %     24,0019,00  
Max %0,082,000,0450,0301,0026,0022,000,75 
UNS :S 31008 (ASTM A 312-TP 310 S)

Physical properties

PropertyValue
Density: kg/dm37,9
Hardness: HB 30<= 192
magnetizableno
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 (--)0,93 (--)195 (--)16,5 (--)
100 /212  0,93 (--)195 (--)16,5 (--)
200 / 392  1,03 (--)182 (--)17,0 (--)
400 /752  1,22170 (--)18,0 (--)
500 / 932 19 (--)   
600 /1112  1,37 (--)155 (--)18,5 (--)
1000 / 1832  1,45 (--)120 (--)19,5 (--)
Temp.Creep strain limitCreep strain limitCreep rupture strengthCreep rupture strengthCreep rupture strength
°C/°F1% (10 000h)10 000 h100 00 h
°C/°FN/mm2 /ksiN/mm2 /ksiN/mm2 /ksi
500 / 932     
600 / 111290 /13,0 130 / 18,880 / 11,6 
700 / 129230 / 4,3 40 / 5,818 / 2,7 
800 / 147210 / 1,45 18 / 2,67 / 1,0 
900 / 16524 7 0,6 8,5 / 1,23 / 0,4 

Mechanical properties (20°C / 68°F)

tensile elastic limit Re (Mpa)>=210
Tensile strenght Rm (Mpa)500-700
Elongation A5 (%)>=35

Temparature information

Application area
Operation temperature ºF  to 1922 ºF 
Explanation reportscaling resistance (air) up to 1922°F
Solution heat treatment
Working temperature1922 ºF  to 2012 ºF 
Solution heat treatment
Working temperature2102 ºF  to 1472 ºF 
Explanation reportfast cooldown :air

Standards / information

StandardsDesciption

Process information

Chip removing processrequires slow cutting speed due to cold work hardening
don't break contact with cutting tool
Welding
 - Typewell weldable
WIG
MAG solid wire
manual arc welding (E)
 - Add. material1.4842
 - Hintsno heat treatment necessary before or after welding process

Main fields of application

Details of applicationthermotechnical facilities with increased scaling resistance (up to 1922°F)
Certifications
industral furnace engineeringOfenteile
Glührohre
Muffelrohre
Power plants
petrochemical industry
crude oil

Range of products

Product typeProduct
Plates / Sheetsplates/sheets
plate/sheet cuts
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.)
Round barpeeled
Bar steelflat steel
round 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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