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AISI S44003 Details

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S44003 Application:Hardenable Chromium Stainless Steel

Category Type Grade Microstructure Designations
Grades Stainless Steels S44003 Martensite USA - AISI ,

Chemical composition(wt.%) of S44003 grade:

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.75 0.95
Mn - 1.00
Si - 1.00
P - 0.04
S - 0.03
Cr 16.00 18.00
Ni - -
Mo - 0.75

Hardenable Chromium Stainless Steel

Mechanical properties of grade S44003

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)
996 (≥) 813 (≥) 11 34 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 133

Physical properties of grade S44003

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
672 (≥) 915 (≥) 11 12 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 443
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
991 964 779

S44003 - 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 276 S44003 SAE USA
Stainless Steel Bars and Shapes
A 314 S44003 SAE USA
Stainless Steel Billets and Bars for Forging
A 473 S44003 SAE USA
Stainless Steel Forgings
A 580 S44003 SAE USA
Stainless Steel Wire
S44003 AISI USA
Hardenable Chromium Stainless Steel
SUS 440B JIS Japan
Stainless steel bars
STS440B KS Korea
Stainless steel bars
440B CNS China
Stainless steel bars
ASTM440B ASTM USA
ASTM440B
AISI440B AISI USA
AISI440B
S44003 UNS USA
S44003

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