GBT K409

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GBT K409

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K409 Application:Age hardening type Nickel base alloy

Chemical composition(mass fraction)(wt.%) of the K409
C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) Mo(%) Co(%) B(%) Al(%) Ti(%) Ta(%) Other(%)
0.08-0.13 Max 0.5 Max 0.5 Max 0.015 Max 0.01 7.50-8.50 Balance 5.75-6.25 9.50-10.5 0.10-0.20 5.75-6.25 0.80-1.20 4.00-4.50 Zr: 0.05-0.10

Mechanical properties of grade K409

Yield
Rp0.2 (MPa)
Tensile
Rm (MPa)
Impact
KV (J)
Elongation
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition HBW
921 (≥) 915 (≥) 41 23 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 234

Physical properties of grade K409

Property Density
kg/dm3
Temperature T
°C/F
Specific heat
J / kgK
Thermal conductivity
W/mK
Electric resistance
µΩ·cm
688 (≥) 867 (≥) 41 24 34 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
- - -
828 769 267 - - -

K409 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