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ASME 17-4 PH Details

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17-4 PH Application:Chromium-nickel alloy steel bars, rods and forgings, corrosion resistant

Category Type Grade Designations
Grades Stainless Steels 17-4 PH USA - ASME , MIL-C-24111B - Chromium-nickel alloy steel bars, rods and forgings, corrosion resistant

Chemical composition(wt.%) of 17-4 PH grade: MIL-C-24111B

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.04
Si - 0.60
Mn - 0.28
Cr - 16.0
Ni - 4.25
Cu - 3.3
Fe - remaining
Nb - 0.27
Chromium-nickel alloy steel bars, rods and forgings, corrosion resistant

Mechanical properties of grade 17-4 PH MIL-C-24111B

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 Condition Brinell hardness (HBW)
422 (≥) 136 (≥) 13 42 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 243

Physical properties of grade 17-4 PH MIL-C-24111B

Property Density
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
255 (≥) 221 (≥) 42 32 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 212
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
714 589 198

17-4 PH - Form of Supply

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

Cross Reference Table(Equivalent Grade)

Grade Standard Country Application
17-4 PH ASME USA
Chromium-nickel alloy steel bars, rods and forgings, corrosion resistant
B 883 MIM-17-4-PH SAE USA
Steel, Corrosion-Resistant, Investment Castings 16Cr - 4.1Ni - 0.28Cb (Nb) - 3.2Cu Homogenization, Solution, and Precipitation Heat Treated (H1100) 130 ksi (896 MPa) Tensile Strength (17-4)

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