Material No.: K 21590

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

Description

EN symbol (short)10CrMo9-10
Material No.1.7380
AFNORNF EN 10216-2 (08/2007) (FR)
BSEN 10216-2 (08/2007) (GB)
Density kg/dm37,84
Hardness HB30130-175
CompositionAlloyed stainless steel
CategoryHigh-temperature steel
Structureduplex (ferritic/austenitic)

Chemical Composition

 CMnPSSiCrMoCuNiAl
K 21590Min %0,050,30   1,900,87   
Max %0,150,600,0250,0250,502,601,13   
K 21590 (ASTM A335/A213 -P22/T22)
1.7380 Min %0,080,30   2,000,90   
Max %0,140,700,0250,0200,502,501,100,300,300,040
(Key to Steel 2010) (DIN EN 10216-2)

Physical properties

PropertyValue
Density: kg/dm37,84
Hardness: HB30130-175
mag netizableyes
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 (--)34,9 (--)0,298 (--)210 (--) 
300 /572 37,8 (--)0,497 (--)185 (--)12,9 (--)
400 /752 36,6 (--)0,595 (--)175 (--)13,5 (--)
600 /1112 33,6 (--)0,825 (--)165 (--)14,1 (--)
Temp.Creep strain limitCreep strain limitCreep rupture strengthCreep rupture strengthCreep rupture strength
°C / °F10 000 h100 000h10 000h100 000h200 000h
Rp1.0 (N/mm2)Rp1.0 (N/mm2)N/mm2N/mm2N/mm2
500 / 932~147 ~/ 21,3~103 /~ 14,9~196 /~28,4~135 /~19,5~120 /~17,4
550 / 1022~83 / ~12,0~49 / ~7,1~108 / ~15,6~68 / ~9,8~58 /~ 8,4
600 / 1112~44 / ~6,3~22 / ~3,2~61 / ~8,8~34 / ~4,9~28 /~ 4,0
Temperature0,2% Yield strength

in high temperatures
°C / °FRp 0,2
N/mm2 / ksi
200 / 392240 / 34,8
300 / 572215 / 31,2
400 / 752180 / 26,1
450 / 842180 / 26,1
500 / 932175 / 25,3
ksi value calculated

Mechanical properties (20°C / 68°F)

1% Yield strenght 
0,2% Yield strenght Rp0,2 (N/mm2) /(ksi)290 / 42,0
Tensile strength Rm (Mpa)480-620 / 69,6- 89,9lengthwise
elongation at break A5>=18%
impact work KV(ISO-V/CharpyV)
<=40J
lengthwise <=60mm

Temparature information

Application area
Operation temperature14 ºF  to 1112 ºF according to AD specifications W1
Austenitising
Working temperature1688 ºF  to 1796 ºF 
Processing informationscooling-down: oil/air
Solution heat treatment
Working temperature2012 ºF  to 1562 ºF 
Explanation reportcooling-down :air
annealing
Working temperature1256 ºF  to 1400 ºF 
stress relief annealing
Working temperature1202 ºF  to 1382 ºF 

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
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

Process information

Welding
 - Material classification acc. CEN ISO/TR 156085.2
 - Typewell weldable
WIG
manual arc welding (E)
MAG cored wire
manual arc
 - Hintswhen using covered rod electrodes, mind the low C and Si content
pre-heat to 392°F if material width >0.4"

Main fields of application

Details of application
Certifications
Power plantsSammler-,Siede-,Überhitzungsrohre,Heißdampfleitungsrohre
crude oildiverse Anlagenteile

Range of products

Product typeProduct
Processing / Constructionfrom pipes, fittings, flanges (welded)
Plates / Sheetsplates/sheets
plate/sheet cuts
Fittingsseamless elbows
seamless reductions
seamless T-pieces
Flanges / Collars / Flared tube endscollars
Pipes / Tubesseamless 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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