Material No.: 1.7335

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

Description

EN symbol (short)13 CrMo4-5 (alt.13CrMo4-4)
UNSK 11562
Grade P12 / T12
UNSK 11597
Grade P11 / T11
AFNOR13 CrMo4-5 /NF EN 10216-2 (08/2007) (FR)
BS13 CrMo4-5 /B.S. EN 10216-2 (08/2007) (GB)
Density kg/dm37,85
Hardness HB 30(lenghtwise <=60mm)130-175
CompositionAlloyed stainless steel
CategoryHigh-temperature steel
Structure

Chemical Composition

 CSiMnPSCrCuMoNNiAl
1.7335Min %0.10 0,40  0,70 0,40   
Max %0,170,350,700,0250,0201,150,300,600,0120,300,040
(Key to steel 2010) 1.7335 (DIN EN10216-2)
K 11562 Min %0,05 0,30  0,80 0,44   
Max %0,150,500,610,0250,0251,25 0,65   
UNS K11562(ASTM A 335/213 -P12/T12)
K 11597Min %0,050,500,30  1,00 0,44   
Max %0,151,000,600,0250,0251,50 0,65   
K 11597 (ASTM A335 /213-P11/T11)

Physical properties

PropertyValue
Density: kg/dm37,85
Hardness: HB 30(lenghtwise <=60mm)130-175
Elongation A5(%)>=22-lengthwise /
>=20-transverse
magnetizableYes
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° / 68622 / (---)33/(---) 210/(---) 
300 / 572   185/(---)12,9/(---)
400 / 752   175 /(--) 
500 / 932   165/(---)13,9/(---)
600 / 1112    14,1/(---)
Temp.Creep strain limitCreep strain limitCreep rupture strengthCreep rupture strengthCreep rupture strength
°C/ °F10 000 h100 000h10 000 h100 000 h
Rp1.0 (Mpa)/ ksiRp1.0 (Mpa)/ ksiMpa /ksiMpa /ksi
450/ 842245/ 35,5191 /27,7370 / 53,6285 / 41,3 
500/ 932157 / 22,798 / 14,2239 / 34,6137 / 19,8 
550/ 102276 / 11,036 / 5,2109 / 15,849 / 7,1 
600/ 1112  49 / 7,120 / 2,9 
ksi value calculated
Temperature0,2% Yield strength
in high temperatures
°C / °FRp 0,2
Mpa /ksi
100 / 212264 / 38,2
260 /500118,6 / 17,2
371 /700107,6 / 15,6
426,6 /800104,4 /15,0
482,2 /90088,2 / 12,8
537,8 /100043,4 / 6,3
593,3 /110019,3 / 2,8
648,9 /12008,3 / 1,2
ksi value calculated

Mechanical properties (20°C / 68°F)

Yield strength MPa/ksi220 /32ASTM A335- P12
0,2 %Yield strength Rp 0,2 (Mpa) (ksi)290 / 42Wst.No.1.7335
Tensile strenght Rm (Mpa) / (ksi)450-600 /65,2-87,0llongitudinal(<60mm)Wst.No.1.7335
Elongation(A5) (%)>=22%
>=20%		longitudinal(<=60mm)
transverse(<=60mm)		Wst.No.1.7335
ISO-V Notched impact strength /Charpy-V)>=27Jlongitudinal(<=60 mm)Wst.No.1.7335
Tensile strenght Rm Mpa/ksi415/ 60ASTM A335- P12

Temparature information

Application area
Operation temperature14 ºF  to 1058 ºF according to AD specifications W1
Normalizing
Working temperature1652 ºF  to 1760 ºF 
Explanation reportcool down: air
Solution heat treatment
Working temperature1562 ºF  to 2012 ºF 
Normalizing
Working temperature1634 ºF  to 1742 ºF 
Explanation reportcooling-down:air,water ,Oil
annealing
Working temperature1166 ºF  to 1346 ºF 
Explanation reportcooling-down:air
Processing informationshold temperature through entire cross section for appropiate time
tempering
Working temperature1634 ºF  to 1742 ºF 
Explanation reportquenching: oil/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 335Standard Specification for Seamless Ferritic Alloy -Steel Pipe for High-Temperature apllications
DIN EN 10028-2 (09/2009)flat products made from steel for pressure tanks non-alloy and alloy steels with set properties in high temperatures
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 10216-2(10/2007)Stanless steel tubes for pressure purposes. Non-alloy and alloy steel tubes with specified elevated temperature properties
SEW 310 (08/1992)physical properties of steel

Process information

Cold formingcold forming well possible,
may require stress relief annealing for strong distortions (read AD data sheet)
Welding
 - Material classification acc. CEN ISO/TR 156085.1
 - Typewell weldable with all techniques
 - Hintspre-heat to 392°F if material width >0.4"

Main fields of application

Details of application
Certifications
Power plantsheader
Sammler-,Siede-,Überhitzungsrohre,Heißdampfleitungsrohre
Apparatus engineering
crude oil

Range of products

Product typeProduct
Processing / Constructionfrom 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
from bar steel
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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