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SAE-AISI 9254 Steel vs. EN 1.4104 Stainless Steel

Both SAE-AISI 9254 steel and EN 1.4104 stainless steel are iron alloys. They have 84% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 9254 steel and the bottom bar is EN 1.4104 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 20
11 to 23
Fatigue Strength, MPa 280
230 to 310
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
77
Shear Strength, MPa 410
400 to 450
Tensile Strength: Ultimate (UTS), MPa 660
630 to 750
Tensile Strength: Yield (Proof), MPa 410
350 to 560

Thermal Properties

Latent Heat of Fusion, J/g 270
280
Maximum Temperature: Mechanical, °C 410
860
Melting Completion (Liquidus), °C 1440
1440
Melting Onset (Solidus), °C 1400
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 46
25
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 2.2
8.5
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 1.5
2.2
Embodied Energy, MJ/kg 20
30
Embodied Water, L/kg 49
120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
77 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 450
310 to 800
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 24
23 to 27
Strength to Weight: Bending, points 22
21 to 24
Thermal Diffusivity, mm2/s 12
6.7
Thermal Shock Resistance, points 20
22 to 27

Alloy Composition

Carbon (C), % 0.51 to 0.59
0.1 to 0.17
Chromium (Cr), % 0.6 to 0.8
15.5 to 17.5
Iron (Fe), % 96.1 to 97.1
78.8 to 84.1
Manganese (Mn), % 0.6 to 0.8
0 to 1.5
Molybdenum (Mo), % 0
0.2 to 0.6
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 1.2 to 1.6
0 to 1.0
Sulfur (S), % 0 to 0.040
0.15 to 0.35