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Lapelloy Application:Martensitic special steel
Category Type Steel grade Standard Country
Grades Special Alloy Lapelloy UNS USA

Chemical composition % of the ladle analysis of grade Lapelloy

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) Mo(%) V(%)
0.27-0.32 0.5 0.95-1.35 Max 0.025 Max 0.025 11.0-12.0 0.5 2.5-3.O 0.2-0.3
Lapelloy
Mechanical properties of grade Lapelloy
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)
827 (≥) 658 (≥) 31 13 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 442
Physical properties of grade Lapelloy
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
434 (≥) 542 (≥) 23 24 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 143
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
339 814 729
Lapelloy 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
Cross Reference Table(Equivalent Grade)
Grade Standard Country Application
A 565 S42300 UNS USA
Martensitic Stainless Steel Bars for High-Temperature Service
S42300 UNS USA
Martensitic Chromium Molybdenum Vanadium Stainless Steel
Lapelloy UNS USA
Special Purpose Alloys ("Superalloys")
Lapelloy C UNS USA
Special Purpose Alloys ("Superalloys")
Lapelloy C UNS USA
Special Purpose Alloys ("Superalloys")

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