Home»Grades > Special Alloy > X12CrCoNi21-20
X12CrCoNi21-20Application:The high-temperature and high-strength steel
CategoryTypeSteel gradeStandardCountry
Grades Special Alloy X12CrCoNi21-20DINGermany

Chemical composition%of the ladle analysis of gradeX12CrCoNi21-20

C(%)Si(%)Mn(%)P(%)S(%)Cr(%)Ni(%)Mo(%)W(%)N(%)Co(%)Other(%)
0.08-0.160.08-0.161.00-2.00Max 0.040Max 0.03020.0-22.519.0-21.02.50-3.502.00-3.000.1-0.218.5-21.0Nb/Ta 0.75-1.25
X12CrCoNi21-20
Mechanical properties of gradeX12CrCoNi21-20
Proof strength
Rp0.2(MPa)
Tensile strength
Rm(MPa)
Impact energy
KV(J)
Elongation at fracture
A(%)
Reduction in cross section on fracture
Z(%)
As-Heat-Treated ConditionBrinell hardness(HBW)
153(≥)211(≥)244134Solution and Aging,Annealing,Ausaging,Q+T,etc344
Physical properties of gradeX12CrCoNi21-20
PropertyDensity
kg/dm3
Temperature T
°C/F
Specific heat
J/kgK
Thermal conductivity
W/mK
Electric resistance
µΩ·cm
Modulus of elasticity
kN/mm2
Expansion rate
443(≥)186(≥)133411Solution and Aging,Annealing,Ausaging,Q+T,etc431
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0)N/mm2
Creep rupture strength
(10000h)
(Rp1,0)N/mm2
647579834
X12CrCoNi21-20Range of products
Product typeProductsDimensionProcessesDeliver Status
Plates/SheetsPlates/Sheets0.08-200mm(T)*W*LForging,hot rolling and cold rollingAnnealed,Solution and Aging,Q+T,ACID-WASHED,Shot Blasting
Steel BarRound Bar,Flat Bar,Square BarΦ8-1200mm*LForging,hot rolling and cold rolling,CastBlack,Rough Turning,Shot Blasting,
Coil/StripSteel Coil/Steel Strip0.03-16.0x1200mmCold-Rolled&Hot-RolledAnnealed,Solution and Aging,Q+T,ACID-WASHED,Shot Blasting
Pipes/TubesSeamless Pipes/Tubes,Welded Pipes/TubesOD:6-219mm x WT:0.5-20.0mmHot extrusion,Cold Drawn,WeldedAnnealed,Solution and Aging,Q+T,ACID-WASHED

Enquiry