Material No.: S 31635

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

Description

EN symbol (short)X6CrNiMoTi 17-12-2
Material No.1.4571
AISIAISI 316 Ti
AFNORX6CrNiMoTi 17-12-2 / NF EN 10088-1 ( 06/2005) (FR)
BSX6CrNiMoTi 17-12-2 /B.S. EN 10088-1 ( 06/2005) (GB)
Registered work's labelCronifer 1810Ti
Density kg/dm38,0
Hardness HB30<=215
CompositionNickel Chrome Molybdenum steel
CategoryStainless steels
steel, resistant to rust and acids
Structureaustenitic
Corrosionresistant to intercrystalline corrosion
high corrosion resistance
satisfactionary against pitting corrosion

Chemical Composition

 CSiMnPSCrMoNiTiN
S 31635Min %     16,002,0010,00  
Max %0,080,752,000,0450,03018,003,0014,00>=5x(C+N)<=0,70,10
1.4571Min %     16,502,0010,50  
Max %0,081,002,000,0450,015*18,502,5013,505xC<=0,7 
(Key to steel 2010) *S: for long term products: S<=0,30, ......for untreated products: S=0,015-0,030 Norms allow deviations for S, Ni, Cu
AISI 316 TiMin %     16,002,0010,00  
Max %0,080,752,000,0450,03018,003,0014,00>=5x(C+N)<=0,700,10
AISI 316 Ti (UNS S 31635)

Physical properties

PropertyValue
Density: kg/dm38,0
Hardness: HB30<=215
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 / 68500(-)15(-)0,75 (-)200 (-)16,5(-)
200 / 392   186 (-)17,5 (-)
300 / 572   172 (-)18,0 (-)
400 / 752   165 (-)18,5 (-)
500 / 932    19,0 (-)
Temperature1,0%
Yield strength
in high temperatures
0,2%
Yield strength
in high temperatures
Tensile strenght

in high temperatures
E-Modul

in high temperatures
°C /°FRp 0, 2Rp 1,0Rm
N/mm2 / ksiN/mm2 / ksiN/mm2 / ksiN /mm2
50 / 122205 / 29,73240 / 34,80490 / 71 
100 / 212190 / 27,55220 / 31,90440 /63,816,500
200 / 392165 / 23,90192 / 27,80390 / 56,617,500
300 / 572145 / 21,00175 / 25,40375 / 54,418,500
400 / 752135 / 19,60164 / 23,80375 / 54,418,500
500 / 932129 / 18,70158 / 22,90360 / 52,219,000
tubes up to 20mm width; sheets up tp 50mm width
ksi value calculated

Mechanical properties (20°C / 68°F)

1% Yield strength Rp 1,0 (Mpa/ksi)260 / 37,7
Tensile strength Rm (Mpa /ksi)520-670/ 75,4- 97,2
Elongation A5 (%)40
notch impact average ISO-V100/60 J<75 mm transverse

Temparature information

Application area
Operation temperature-166 ºF  to 932 ºF -454 °F minimum operating temperature
by only in strain situation III
Solution heat treatment
Working temperature1886 ºF  to 2030 ºF 
Explanation reportcool down:water/air
annealing
Working temperature1436 ºF  to 1544 ºF 
Explanation reportcool down: water/oil,
Solution heat treatment
Working temperature1562 ºF  to 2102 ºF 
Explanation reportcooldown: air

Standards / information

StandardsDesciption
ASTM A 213 Standard Specification for Seamless Ferritic and Austenitic Alloy-Steel Boiler,Superheater,and Heat-Exchanger Tubes
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 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 10296-2 (02/2006)Welded circular steel pipes for machine construction and general technical service 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

Process information

Chip removing processhardly machinable
Welding
 - Material classification acc. CEN ISO/TR 156088.1
 - TypeWIG
manual arc welding
submerged arc welding
Laser welding
MAG solid wire
 - Add. material1.4430;1.4576
laser welding; consult specialist literature

Main fields of application

Details of application- good corrosion resistance to nitric acid and organic cold acid solutions
- application areas; chemical insutry; textile industry; cellulose industry
Certifications
Chemical Industryzur Verarbeitung von Salpetersäure
zur Verarbeitung von Essigsäure (z.B. Reaktoren)
Apparatebau
cellulose/paper industryAufschlussbehälter
Environmental technologyKläranlagen
textile industry
cellulose/paper industry
Apparatus engineering
water management
pharmaceutical industry
crude oil

Range of products

Product typeProduct
Processing / Constructionfrom sheets
from pipes, fittings, flanges (welded)
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 endsvarious flanges (weld neck flange,blind flange etc.)
Bumped boiler ends / caps / round blanksfrom sheets
Pipes / Tubeswelded pipes/tubes
welded square pipes/tubes
Hollow bar
seamless pipes/tubes
Bar steelflat steel
section steel
round bar steel
hexagon steel
Equipmentscrews, screw nuts,shims, straight turning parts, designed components

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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