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SAE-AISI 1151 Steel vs. S17400 Stainless Steel

Both SAE-AISI 1151 steel and S17400 stainless steel are iron alloys. They have 75% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1151 steel and the bottom bar is S17400 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 220
280 to 440
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 17
11 to 21
Fatigue Strength, MPa 260 to 410
380 to 670
Poisson's Ratio 0.29
0.28
Reduction in Area, % 34 to 40
40 to 62
Shear Modulus, GPa 72
75
Shear Strength, MPa 430 to 480
570 to 830
Tensile Strength: Ultimate (UTS), MPa 710 to 800
910 to 1390
Tensile Strength: Yield (Proof), MPa 390 to 660
580 to 1250

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 400
850
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 51
17
Thermal Expansion, µm/m-K 12
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 12
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
14
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
2.7
Embodied Energy, MJ/kg 18
39
Embodied Water, L/kg 46
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 86 to 100
140 to 160
Resilience: Unit (Modulus of Resilience), kJ/m3 400 to 1170
880 to 4060
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 25 to 28
32 to 49
Strength to Weight: Bending, points 22 to 24
27 to 35
Thermal Diffusivity, mm2/s 14
4.5
Thermal Shock Resistance, points 22 to 25
30 to 46

Alloy Composition

Carbon (C), % 0.48 to 0.55
0 to 0.070
Chromium (Cr), % 0
15 to 17
Copper (Cu), % 0
3.0 to 5.0
Iron (Fe), % 98.3 to 98.7
70.4 to 78.9
Manganese (Mn), % 0.7 to 1.0
0 to 1.0
Nickel (Ni), % 0
3.0 to 5.0
Niobium (Nb), % 0
0.15 to 0.45
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0.080 to 0.13
0 to 0.030