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SAE-AISI 1144 Steel vs. S30615 Stainless Steel

Both SAE-AISI 1144 steel and S30615 stainless steel are iron alloys. They have 62% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1144 steel and the bottom bar is S30615 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220 to 230
190
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 17
39
Fatigue Strength, MPa 280 to 430
270
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
75
Shear Strength, MPa 460 to 510
470
Tensile Strength: Ultimate (UTS), MPa 750 to 840
690
Tensile Strength: Yield (Proof), MPa 420 to 690
310

Thermal Properties

Latent Heat of Fusion, J/g 250
340
Maximum Temperature: Mechanical, °C 400
960
Melting Completion (Liquidus), °C 1450
1370
Melting Onset (Solidus), °C 1410
1320
Specific Heat Capacity, J/kg-K 470
500
Thermal Conductivity, W/m-K 51
14
Thermal Expansion, µm/m-K 13
16

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
19
Density, g/cm3 7.8
7.6
Embodied Carbon, kg CO2/kg material 1.4
3.7
Embodied Energy, MJ/kg 19
53
Embodied Water, L/kg 47
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 91 to 110
220
Resilience: Unit (Modulus of Resilience), kJ/m3 480 to 1290
260
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 27 to 30
25
Strength to Weight: Bending, points 23 to 25
23
Thermal Diffusivity, mm2/s 14
3.7
Thermal Shock Resistance, points 22 to 24
16

Alloy Composition

Aluminum (Al), % 0
0.8 to 1.5
Carbon (C), % 0.4 to 0.48
0.16 to 0.24
Chromium (Cr), % 0
17 to 19.5
Iron (Fe), % 97.5 to 98
56.7 to 65.3
Manganese (Mn), % 1.4 to 1.7
0 to 2.0
Nickel (Ni), % 0
13.5 to 16
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0
3.2 to 4.0
Sulfur (S), % 0.24 to 0.33
0 to 0.030