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UNS Pyromet 31V Details

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Pyromet 31V Application:Engine poppet valve information report

Category Type Grade Microstructure Designations
Grades Stainless Steels Pyromet 31V Precipitation-Hardening USA - UNS , SAE J 775 (2004) - Engine poppet valve information report

Chemical composition(wt.%) of Pyromet 31V grade: SAE J 775 (2004)

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.03 0.06
Si - 0.20
Mn - 0.20
Cr 22.00 23.00
Ni 55.00 58.00
Mo 1.70 2.30
Co - -
W - -
Al 1.00 1.70
Cu 0.60 1.20
Ti 2.10 2.60
Fe - remaining
B 0.003 0.007
P - 0.015
S - 0.015
Engine poppet valve information report

Mechanical properties of grade Pyromet 31V SAE J 775 (2004)

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)
753 (≥) 525 (≥) 13 23 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 332

Physical properties of grade Pyromet 31V SAE J 775 (2004)

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
124 (≥) 669 (≥) 33 13 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 112
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
686 699 598

Pyromet 31V - 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
Pyromet 31 UNS USA
Engine poppet valve information report
Pyromet 31V UNS USA
Engine poppet valve information report

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