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S17400 Stainless Steel vs. SAE-AISI 9254 Steel

Both S17400 stainless steel and SAE-AISI 9254 steel are iron alloys. They have 76% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is S17400 stainless steel and the bottom bar is SAE-AISI 9254 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 280 to 440
200
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 21
20
Fatigue Strength, MPa 380 to 670
280
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
72
Shear Strength, MPa 570 to 830
410
Tensile Strength: Ultimate (UTS), MPa 910 to 1390
660
Tensile Strength: Yield (Proof), MPa 580 to 1250
410

Thermal Properties

Latent Heat of Fusion, J/g 280
270
Maximum Temperature: Mechanical, °C 850
410
Melting Completion (Liquidus), °C 1440
1440
Melting Onset (Solidus), °C 1400
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 17
46
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 14
2.2
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 2.7
1.5
Embodied Energy, MJ/kg 39
20
Embodied Water, L/kg 130
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 160
110
Resilience: Unit (Modulus of Resilience), kJ/m3 880 to 4060
450
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 32 to 49
24
Strength to Weight: Bending, points 27 to 35
22
Thermal Diffusivity, mm2/s 4.5
12
Thermal Shock Resistance, points 30 to 46
20

Alloy Composition

Carbon (C), % 0 to 0.070
0.51 to 0.59
Chromium (Cr), % 15 to 17
0.6 to 0.8
Copper (Cu), % 3.0 to 5.0
0
Iron (Fe), % 70.4 to 78.9
96.1 to 97.1
Manganese (Mn), % 0 to 1.0
0.6 to 0.8
Nickel (Ni), % 3.0 to 5.0
0
Niobium (Nb), % 0.15 to 0.45
0
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 1.0
1.2 to 1.6
Sulfur (S), % 0 to 0.030
0 to 0.040