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AISI S41800 Details

S41800 Application:Martensitic Chromium Wolfram Nickel Stainless and Heat Resisting Steel

Category Type Grade Microstructure Designations
Grades Stainless Steels - Special Steels S41800 Martensite USA - AISI ,

Chemical composition(wt.%) of S41800 grade:

Elements Min.(≥) Max.(≤)
C 0.15 0.20
Mn - 0.50
Si - 0.50
P - 0.04
S - 0.03
Cr 12.00 14.00
Ni 1.80 2.20
Mo - -
W 2.50 3.50
Martensitic Chromium Wolfram Nickel Stainless and Heat Resisting Steel

Mechanical properties of grade S41800

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)
194 (≥) 497 (≥) 13 34 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 343

Physical properties of grade S41800

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
785 (≥) 162 (≥) 43 11 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 233
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
536 422 348

S41800 - 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
A 565 S41800 SAE USA
Martensitic Stainless Steel Bars for High-Temperature Service
S41800 AISI USA
Martensitic Chromium Wolfram Nickel Stainless and Heat Resisting Steel
A 565 S41800 SAE USA
Martensitic Stainless Steel Bars for High-Temperature Service
S41800 AISI USA
Martensitic Chromium Wolfram Nickel Stainless and Heat Resisting Steel
A 565 S41800 SAE USA
Martensitic Stainless Steel Bars for High-Temperature Service
S41800 AISI USA
Martensitic Chromium Wolfram Nickel Stainless and Heat Resisting Steel

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