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S44800 Stainless Steel vs. SAE-AISI 1137 Steel

Both S44800 stainless steel and SAE-AISI 1137 steel are iron alloys. They have 65% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is S44800 stainless steel and the bottom bar is SAE-AISI 1137 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
200 to 210
Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 23
11 to 17
Fatigue Strength, MPa 300
250 to 400
Poisson's Ratio 0.27
0.29
Reduction in Area, % 45
34 to 39
Shear Modulus, GPa 82
73
Shear Strength, MPa 370
430 to 460
Tensile Strength: Ultimate (UTS), MPa 590
700 to 760
Tensile Strength: Yield (Proof), MPa 450
370 to 650

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1100
400
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 17
51
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.6
10
Electrical Conductivity: Equal Weight (Specific), % IACS 3.0
12

Otherwise Unclassified Properties

Base Metal Price, % relative 19
1.9
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.8
1.4
Embodied Energy, MJ/kg 52
19
Embodied Water, L/kg 190
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
81 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 480
360 to 1130
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21
25 to 27
Strength to Weight: Bending, points 20
22 to 24
Thermal Diffusivity, mm2/s 4.6
14
Thermal Shock Resistance, points 19
21 to 23

Alloy Composition

Carbon (C), % 0 to 0.010
0.32 to 0.39
Chromium (Cr), % 28 to 30
0
Copper (Cu), % 0 to 0.15
0
Iron (Fe), % 62.6 to 66.5
97.8 to 98.3
Manganese (Mn), % 0 to 0.3
1.4 to 1.7
Molybdenum (Mo), % 3.5 to 4.2
0
Nickel (Ni), % 2.0 to 2.5
0
Nitrogen (N), % 0 to 0.020
0
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.2
0
Sulfur (S), % 0 to 0.020
0.080 to 0.13