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SAE-AISI 1108 Steel vs. EN 1.4877 Stainless Steel

Both SAE-AISI 1108 steel and EN 1.4877 stainless steel are iron alloys. They have a modest 40% of their average alloy composition in common, which, by itself, doesn't mean much. There are 31 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 SAE-AISI 1108 steel and the bottom bar is EN 1.4877 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 110 to 140
190
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 23 to 34
36
Fatigue Strength, MPa 170 to 260
170
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
79
Shear Strength, MPa 250 to 280
420
Tensile Strength: Ultimate (UTS), MPa 380 to 440
630
Tensile Strength: Yield (Proof), MPa 220 to 360
200

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Maximum Temperature: Mechanical, °C 400
1150
Melting Completion (Liquidus), °C 1460
1400
Melting Onset (Solidus), °C 1420
1360
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 52
12
Thermal Expansion, µm/m-K 12
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
1.8
Electrical Conductivity: Equal Weight (Specific), % IACS 8.0
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
37
Density, g/cm3 7.9
8.0
Embodied Carbon, kg CO2/kg material 1.4
6.2
Embodied Energy, MJ/kg 18
89
Embodied Water, L/kg 46
220

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 95 to 110
180
Resilience: Unit (Modulus of Resilience), kJ/m3 130 to 340
100
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 13 to 16
22
Strength to Weight: Bending, points 15 to 16
20
Thermal Diffusivity, mm2/s 14
3.2
Thermal Shock Resistance, points 12 to 14
15

Alloy Composition

Aluminum (Al), % 0
0 to 0.025
Carbon (C), % 0.080 to 0.13
0.040 to 0.080
Cerium (Ce), % 0
0.050 to 0.1
Chromium (Cr), % 0
26 to 28
Iron (Fe), % 98.9 to 99.24
36.4 to 42.3
Manganese (Mn), % 0.6 to 0.8
0 to 1.0
Nickel (Ni), % 0
31 to 33
Niobium (Nb), % 0
0.6 to 1.0
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.040
0 to 0.020
Silicon (Si), % 0
0 to 0.3
Sulfur (S), % 0.080 to 0.13
0 to 0.010