DIN X40CoNi20-20

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DIN X40CoNi20-20

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X40CoNi20-20 Application:The high-temperature and high-strength steel

Chemical composition(mass fraction)(wt.%) of the X40CoNi20-20
C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) Mo(%) W(%) Co(%) Other(%)
0.35-0.45 Max 1.00 Max 1.50 Max 0.045 Max 0.030 19.0-21.0 19.0-21.0 3.50-4.50 3.50-4.50 19.0-21.0 Nb/Ta 3.50-4.50

Mechanical properties of grade X40CoNi20-20

Yield
Rp0.2 (MPa)
Tensile
Rm (MPa)
Impact
KV (J)
Elongation
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition HBW
387 (≥) 969 (≥) 13 41 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 233

Physical properties of grade X40CoNi20-20

Property Density
kg/dm3
Temperature T
°C/F
Specific heat
J / kgK
Thermal conductivity
W/mK
Electric resistance
µΩ·cm
872 (≥) 924 (≥) 13 12 14 Solution and Aging, Annealing, Ausaging, Q+T,etc
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
- - -
124 166 882 - - -

X40CoNi20-20 Range of products
Product type Products Dimension Processes Deliver Status
Plates / Sheets Plates / Sheets 0.08-200mm(T)*W*L Forging, hot rolling and cold rolling Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Steel Bar Round Bar, Flat Bar, Square Bar Φ8-1200mm*L Forging, hot rolling and cold rolling, Cast Black, Rough Turning, Shot Blasting,
Coil / Strip Steel Coil /Steel Strip 0.03-16.0x1200mm Cold-Rolled & Hot-Rolled Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Pipes / Tubes Seamless Pipes/Tubes, Welded Pipes/Tubes OD:6-219mm x WT:0.5-20.0mm Hot extrusion, Cold Drawn, Welded Annealed, Solution and Aging, Q+T, ACID-WASHED