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AISI 440F Se Application:Martensitic special steel
Category Type Steel grade Standard Country
Grades Special Alloy AISI 440F Se AISI USA

Chemical composition % of the ladle analysis of grade AISI 440F Se

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) Mo(%) Other(%)
0.95-1.20 Max 1.00 Max 1.25 Max 0.04 Max 0.03 16.0-18.0 Max 0.75 Max 0.60 Se Min 0.15
AISI 440F Se
Mechanical properties of grade AISI 440F Se
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)
823 (≥) 744 (≥) 11 24 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 333
Physical properties of grade AISI 440F Se
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
961 (≥) 857 (≥) 41 42 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 441
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
537 688 512
AISI 440F Se 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-2 AISI USA
Applied to the thermosetting plastic mold, the hardened mould as a whole
A 582 S44020 AISI USA
Standard Specification for Free-Machining Stainless Steel Bars
S44020 AISI USA
Martensitic Chromium Free Machining Stainless Steel
A 582 S44023 AISI USA
Standard Specification for Free-Machining Stainless Steel Bars
S44023 AISI USA
Martensitic Chromium Selenium Bearing Free Machining Stainless Steel
A 582 S44020 AISI USA
Standard Specification for Free-Machining Stainless Steel Bars
S44020 AISI USA
Martensitic Chromium Free Machining Stainless Steel
A 582 S44023 AISI USA
Standard Specification for Free-Machining Stainless Steel Bars
S44023 AISI USA
Martensitic Chromium Selenium Bearing Free Machining Stainless Steel
SUS 440F AISI USA
Stainless steel bars
STS440F AISI USA
Stainless steel bars
440F AISI USA
Stainless steel bars
AISI440F AISI USA
AISI440F
AISI440F Se AISI USA
AISI440F Se
Y1Cr18Ni9Se AISI USA
Improve the machinability, ablation resistance. Suitable for automatic lathe production of rivets, screws
303Se AISI USA
Stainless and heat resisting steels
A 314 303Se AISI USA
Stainless and heat resisting steels
A 473 303 Se AISI USA
Austenitic stainless steel forgings for general use
A 511 MT303Se AISI USA
Austenitic stainless steel forgings for general use
A 581 Type 303Se AISI USA
Free machining stainless and heat resisting steel wire

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