Material No.: 1.4401

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

Description

EN symbol (short)X5CrNiMo17-12-2
AISIAISI 316
UNSS 31600
Grade TP 316
AFNORNF (EN 10088-1(06/2005) (FR)
BSB.S.EN 10088-1 (06/2005) (GB)
Density kg/dm37,98
Hardness HB
Rockwell Hardness Number max.		160-190
B 90 ( TP316 ASTM A 249)
Compositionchromium nickel molybdenium steels
CategoryStainless steels
steel, resistant to rust and acids
Structureaustenitic
Corrosiongood resistance to tensile corrosion
good resistance to intercristalline corrosion to ca. 572° F (ca 300°C) up until 0.2"
Additional characteristicsresistant to carbonisation

Chemical Composition

 CMnPSCrMoSiNNi
1.4401Min %    16,502,00  10,00
Max %0,072,000,0450,01518,502,501,000,11013,00
(Key to steel 2010) DIN-Norms may deviate in some aspects due to different product types
AISI 316 Min %    16,02,00  10,0
Max %0,082,000,0400,0318,03,000,75 14,0
ASTM A 249 (TP316)
S 31600Min %    16,02,00  11,0
Max %0,082,000,0450,0318,03,001,00 14,0
ASTM A 312 (TP 316)
Reference:
[ ]

Physical properties

PropertyValue
Density: kg/dm37,98
Hardness: HB
Rockwell Hardness Number max.		160-190
B 90 ( TP316 ASTM A 249)
polishablegood
hardenablenon
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 / (68)500 (--)15(--)0,75 (--)200 (29) 
100 / (212)    16,5 (--)
200 / (392)    17,5 (--)
300 / (572)    17,5 (--)
400 / (752)    18,5 (--)
500 / (932)    18,5 (--)
.     
temperature1%
Yield strength
in high temperatures		0.2%Yield strength
in high temperatures		tensile strength
in high temperatures
°C / °FRp 1,0Rp 0,2Rm
N/mm2 /ksiN/mm2 /ksiN/mm2 /ksi
50 / 122230 / 33,35196 / 28,40486 / 70,50
100 / 212211 / 30,60177 / 25,67430 / 62,40
200 / 392177 / 25,67147 / 21,30390 / 56,60
300 / 572156 / 22,60127 / 18,40380 / 55,10
400 / 752144 / 20,90115 / 16,70 
500 / 932139 /20,16110 / 15,90 
ksi value calculated

Mechanical properties (20°C / 68°F)

1 %Yield strength Rp 1,0
Yield strength (ksi)/ Mpa		260Mpa
30 / 205
TP 316 (ASTM A 249)
0,2 %Yield strength Rp 0,2205 MPa
Tensile strenght Rm (N/mm2)
Tensile strenght min. ksi (Mpa)		410-710
75 (515)
TP 316 (ASTM A 249)
elongation A5 (%)
Elongation %		45
35
in 2 in.or 50mm
TP 316 (ASTM A 249)
impact work KV
( ISO-V/Charpy-V)		>100J />60Jlengthwise / transverse

Temparature information

Application area
Operation temperature-166 ºF  to 1022 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 1382 ºF read AD data sheet HP 7/3
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 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 312 Standard Specification for Seamless and welded austenitic stainless steel pipes
ASTM A 403 Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings
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 10216-5 (11/2004+B1)Seamless steel tubes under compression load Stainless steel tubes
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
DIN EN 10297-2 (02/2006)seamless circular steel pipes for machine construction and general technical applications, stainless steel

Process information

Cold formingGenerally no heat treatment required after cold processing,
except when in danger of cold cracking.
Welding
 - Material classification acc. CEN ISO/TR 156088.1
 - Typewell weldable
manual arc welding (E)
resistance welding
Electrode
Welding wire
 - Add. material1.4303;1.4430,1.4576 ,1.4428
 - Hintsspecial post heat treating not required

Main fields of application

Details of application-Steel, not hardenable
-polishable
-for applications in industrial climates and coastal areas
-thin pieces also weldable on construction sites
CertificationsCertified for purchase obligating pressure containers in accordance to AD-information sheet W2
Chemical Industrychlorination plants
transport unit for chloric medium
crude oilvarious plant parts
cellulose/paper industry
Environmental technologyclarification plants
textile industryvarious containers and plant components
building industry
food processing industrygrounds for creamery
grounds for brewery

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
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
seamless pipes/tubes
Bar steelsection 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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