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S33425 Stainless Steel vs. SAE-AISI 94B17 Steel

Both S33425 stainless steel and SAE-AISI 94B17 steel are iron alloys. Both are furnished in the annealed condition. They have 54% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is S33425 stainless steel and the bottom bar is SAE-AISI 94B17 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
130
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 45
25
Fatigue Strength, MPa 210
200
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 79
73
Shear Strength, MPa 400
280
Tensile Strength: Ultimate (UTS), MPa 580
440
Tensile Strength: Yield (Proof), MPa 230
270

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1100
410
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1380
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 14
39
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 27
2.4
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 5.1
1.5
Embodied Energy, MJ/kg 71
20
Embodied Water, L/kg 190
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
96
Resilience: Unit (Modulus of Resilience), kJ/m3 140
200
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 20
16
Strength to Weight: Bending, points 19
16
Thermal Diffusivity, mm2/s 3.7
10
Thermal Shock Resistance, points 13
13

Alloy Composition

Aluminum (Al), % 0.15 to 0.6
0
Boron (B), % 0
0.00050 to 0.0030
Carbon (C), % 0 to 0.080
0.15 to 0.2
Chromium (Cr), % 21 to 23
0.3 to 0.5
Iron (Fe), % 47.2 to 56.7
97.1 to 98.3
Manganese (Mn), % 0 to 1.5
0.75 to 1.0
Molybdenum (Mo), % 2.0 to 3.0
0.080 to 0.15
Nickel (Ni), % 20 to 23
0.3 to 0.6
Phosphorus (P), % 0 to 0.045
0 to 0.035
Silicon (Si), % 0 to 1.0
0.15 to 0.35
Sulfur (S), % 0 to 0.020
0 to 0.040
Titanium (Ti), % 0.15 to 0.6
0