Grades | Stainless Steels | HP 9-4-25

ASTM HP 9-4-25 ( Precipitation-Hardening )

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HP 9-4-25 Application:Steel Sheet, Strip, and Plate 0,48Cr - 8,0Ni - 4,0Co - 4,48Mo - 0,09V - (0,24 - 0,30C) Consumable Electrode Melted, Annealed

Chemical composition(mass fraction)(wt.%) of the HP 9-4-25
Elements Min.(≥) Max.(≤) Similar Remarks
C 0.24 0.30
Si - 0.10
Mn 0.10 0.35
Ni 7.00 9.00
Cr 0.35 0.60
Al - -
Cu - -
Ti - -
Fe - -
Mo 0.35 0.60
Co 3.50 4.50
V 0.06 0.12
P - 0.01
S - 0.01

Mechanical properties of grade HP 9-4-25

Yield
Rp0.2 (MPa)
Tensile
Rm (MPa)
Impact
KV (J)
Elongation
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition HBW
936 (≥) 959 (≥) 42 43 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 224

Physical properties of grade HP 9-4-25

Property Density
kg/dm3
Temperature T
°C/F
Specific heat
J / kgK
Thermal conductivity
W/mK
Electric resistance
µΩ·cm
178 (≥) 445 (≥) 22 31 13 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
- - -
141 941 127 - - -

HP 9-4-25 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