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S17400 Stainless Steel vs. SAE-AISI 4150 Steel

Both S17400 stainless steel and SAE-AISI 4150 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 4150 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 280 to 440
200 to 380
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 21
12 to 20
Fatigue Strength, MPa 380 to 670
260 to 780
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
73
Shear Strength, MPa 570 to 830
410 to 800
Tensile Strength: Ultimate (UTS), MPa 910 to 1390
660 to 1310
Tensile Strength: Yield (Proof), MPa 580 to 1250
380 to 1220

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 850
420
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 17
42
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 14
2.4
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.7
1.5
Embodied Energy, MJ/kg 39
20
Embodied Water, L/kg 130
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 160
82 to 180
Resilience: Unit (Modulus of Resilience), kJ/m3 880 to 4060
380 to 3930
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 32 to 49
24 to 47
Strength to Weight: Bending, points 27 to 35
22 to 34
Thermal Diffusivity, mm2/s 4.5
11
Thermal Shock Resistance, points 30 to 46
19 to 39

Alloy Composition

Carbon (C), % 0 to 0.070
0.48 to 0.53
Chromium (Cr), % 15 to 17
0.8 to 1.1
Copper (Cu), % 3.0 to 5.0
0
Iron (Fe), % 70.4 to 78.9
96.7 to 97.7
Manganese (Mn), % 0 to 1.0
0.75 to 1.0
Molybdenum (Mo), % 0
0.15 to 0.25
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
0.15 to 0.35
Sulfur (S), % 0 to 0.030
0 to 0.040