Material No.: S 31603

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

Description

EN symbol (short)X2CrNiMo17-12-2
Material No.1.4404
AISIAISI 316 L
AFNORX2CrNiMo17-12-2 / NF EN 10028-7 (01/2000) (FR)
BSX2CrNiMo17-12-2 / B.S.EN 10028-7 (01-2000 ) (GB)
Registered work's labelV4a Supra NK
Density kg/dm37,95
Hardness HB
Rockwell Hardness Number max.
<215
B90 (TP 316L-ASTM A 249)
Compositionchromium nickel molybdenium steels
CategoryStainless steels
steel, resistant to rust and acids
Structureaustenitic
Corrosionresistant to intercrystalline corrosion
DescriptionThis austenitic stainless steel 1.4404 (316L) shows high acid resistance.

Chemical Composition

 CMnPSSiCrNiMoN
S 31603Min %     16,0010,002,00 
Max %0,0352,000,0450,0301,0018,0015,003,00 
ASTM A 312 (TP 316L)
1.4404Min %     16,5010,002,00 
Max %0,0302,000,0450,0151,0018,5013,002,500,110
(Key to steel 2010) DIN-Norms may deviate in some aspects due to different product types
AISI 316 L Min %     16,0010,002,00 
Max %0,0352,000,0450,0300,07518,0015,003,00 
ASTM A 249 (TP 316 L)

Physical properties

PropertyValue
Density: kg/dm37,95
Hardness: HB
Rockwell Hardness Number max.
<215
B90 (TP 316L-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 (--)200 (--) 
100 / 212    16,0 (--)
200 /392   186 (--)16,5 (--)
300 / 572    17,0 (--)
400 / 752   176 (--)17,5 (--)
500 / 932   165 (--)18,0 (--)
Temperature1% Yield strength
in high temperatures
Tensile strenght strength
in high temperatures
°C/°FRp 1,0Rm
N / mm2 / ksiN / mm2 / ksi
100 / 212199 / 28,9430 / 62,4
200 / 392167 / 24,2390 / 56,6
300 / 572145 / 21,0380 / 55,1
400 / 752135 / 19,6380 / 55,1
500 / 932128 / 18,6360 / 52,2

Mechanical properties (20°C / 68°F)

0,2%Yield strength Rp 0,2 (N/mm2)>190 N/mm2
1,0% Yield strength Rp 1,0 /N/mm2)
Yield strength ksi (Mpa)
225
25 /(170)

TP 316L (ASTM A 249)
Tensile strenght Rm (N/mm2)
Tensile strenght ksi (Mpa)
520-670
70 / (485)

TP 316L (ASTM A 249)
Elongation A5 (%)

Elongation min. %
40 / 30

35
lengthwise /transverse

TP 316L (ASTM A 249)
impact work ISO-V (J)100 / 60lengthwise /transverse

Temparature information

Application area
Operation temperature-166 ºF  to 932 ºF in strain situation III (to -454°F)
Solution heat treatment
Working temperature1868 ºF  to 2012 ºF 
Processing informationscool down:air (<2mm);water (<2mm)
Solution heat treatment
Working temperature2102 ºF  to 1562 ºF 
Processing informationscool down: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 249 Standard Specification for Welded austenitic steel boiler, Superheaters, heat-exchangers,and condenser 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 10028-7 (02/2008)flat products made from steel for pressure tanks Part 7: Stainless steel
DIN EN 10088-1 (09/2005)Stainless steels Part 1: List of stainless steels
DIN EN 10088-2 (09/2005)stainless steel; sheet metal and ribbons out of corrosion resistant steel for general purposes
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 10088-4 (08/2009)stainless steel.Building industry: Technical transport conditions for corrosion resistant sheet metal and ribbons
DIN EN 10216-2 (10/2007)seamless steel pipes under compression load; pipes out of non-alloyed and alloyed steel with set properties in high temperatures
DIN EN 10217-7 (05/2005)Welded steel tubes under compression load. Stainless steel tubes
DIN EN 10296-2 (02/2006)welded circular steel pipes for machine construction and general technical applications, stainless steel

Process information

Welding
 - Material classification acc. CEN ISO/TR 156088.1
 - Typewell weldable
WIG
MAG solid wire
manual arc welding (E)
No translation!
Welding wire
 - Add. material1.4430;1.4576;1.4455; 1.4429
 - Hintsspecial post heat treating not required

Main fields of application

Details of applicationThis steel's composite is similar to steel no. 1.4401
however it's lower carbon content allows welding of sheet thicknesses above 0.2"
CertificationsCertified for purchase obligating pressure containers in accordance to AD-information sheet W2
Chemical IndustryApparatebau
Tranporteinrichtungen für chloridhaltigen Medien
food processing industryMolkereianlagen
Brauereianlagen
cellulose/paper industryVerschiedene Komponenten
Environmental technologyKläranlagen
textile industrydiverse Behälter-und Anlagenteile
food processing industryTransport-Rohranlagen
offshore plantsdiverse Anlagenteile

Range of products

Product typeProduct
Processing / Constructionfrom sheets
from pipes, fittings, flanges (welded)
Plates / Sheetsplates/sheets
Fittingswelded 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.)
Bumped boiler ends / caps / round blanksfrom sheets
from bar steel
Pipes / Tubeswelded pipes/tubes
welded square pipes/tubes
Hollow bar
Bar steelround 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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