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SAE EX 45 Details

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EX 45 Application:Former SAE standard and former SAE Ex-steels

Category Type Grade Microstructure Designations
Grades Stainless Steels EX 45 Precipitation-Hardening USA - SAE , SAE J 1249 (2000) - Former SAE standard and former SAE Ex-steels

Chemical composition(wt.%) of EX 45 grade: SAE J 1249 (2000)

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.25
Si - -
Mn - -
Cr - 25.50
Ni - 10.50
Mo - -
Co - 55.00
W - 7.00
Al - -
Cu - -
Ti - -
Fe - 2.00
B - 0.01
Former SAE standard and former SAE Ex-steels

Mechanical properties of grade EX 45 SAE J 1249 (2000)

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)
254 (≥) 921 (≥) 33 31 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 122

Physical properties of grade EX 45 SAE J 1249 (2000)

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
455 (≥) 764 (≥) 31 13 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 432
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
694 438 329

EX 45 - 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
EX 45 SAE USA
Former SAE standard and former SAE Ex-steels

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