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SAE A 582 S44020 Details

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A 582 S44020 Application:Standard Specification for Free-Machining Stainless Steel Bars

Category Type Grade Microstructure Designations
Grades Stainless Steels A 582 S44020 Martensite USA - SAE , A 582/A 582M (2012) - Standard Specification for Free-Machining Stainless Steel Bars

Chemical composition(wt.%) of A 582 S44020 grade: A 582/A 582M (2012)

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.95 1.20
Mn - 1.25
Si - 1.00
P - 0.04
S 0.10 0.35
Cr 16.00 18.00
Ni - 0.75
Mo 0.40 0.60
N - 0.08

Standard Specification for Free-Machining Stainless Steel Bars

Mechanical properties of grade A 582 S44020 A 582/A 582M (2012)

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)
195 (≥) 987 (≥) 43 23 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 423

Physical properties of grade A 582 S44020 A 582/A 582M (2012)

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
213 (≥) 792 (≥) 32 22 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 211
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
818 824 127

A 582 S44020 - 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 582 S44020 SAE USA
Standard Specification for Free-Machining Stainless Steel Bars
S44020 AISI USA
Martensitic Chromium Free Machining Stainless Steel
A 582 S44023 SAE USA
Standard Specification for Free-Machining Stainless Steel Bars
S44023 AISI USA
Martensitic Chromium Selenium Bearing Free Machining Stainless Steel
A 582 S44020 SAE USA
Standard Specification for Free-Machining Stainless Steel Bars
S44020 AISI USA
Martensitic Chromium Free Machining Stainless Steel
A 582 S44023 SAE USA
Standard Specification for Free-Machining Stainless Steel Bars
S44023 AISI USA
Martensitic Chromium Selenium Bearing Free Machining Stainless Steel
SUS 440F JIS Japan
Stainless steel bars
STS440F KS Korea
Stainless steel bars
440F CNS China
Stainless steel bars
AISI440F AISI USA
AISI440F
AISI440F Se AISI USA
AISI440F Se
S44020 UNS USA
S44020

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