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EN 1.4874 Stainless Steel vs. SAE-AISI 1118 Steel

Both EN 1.4874 stainless steel and SAE-AISI 1118 steel are iron alloys. They have a modest 32% of their average alloy composition in common, which, by itself, doesn't mean much. There are 28 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 EN 1.4874 stainless steel and the bottom bar is SAE-AISI 1118 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
140
Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 6.7
13
Fatigue Strength, MPa 180
260
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 80
73
Tensile Strength: Ultimate (UTS), MPa 480
490
Tensile Strength: Yield (Proof), MPa 360
410

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1150
400
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 450
470
Thermal Conductivity, W/m-K 13
52
Thermal Expansion, µm/m-K 15
12

Otherwise Unclassified Properties

Base Metal Price, % relative 70
1.9
Density, g/cm3 8.4
7.8
Embodied Carbon, kg CO2/kg material 7.6
1.4
Embodied Energy, MJ/kg 110
19
Embodied Water, L/kg 290
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 29
61
Resilience: Unit (Modulus of Resilience), kJ/m3 310
450
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 16
17
Strength to Weight: Bending, points 16
18
Thermal Diffusivity, mm2/s 3.3
14
Thermal Shock Resistance, points 11
15

Alloy Composition

Carbon (C), % 0.35 to 0.65
0.14 to 0.2
Chromium (Cr), % 19 to 22
0
Cobalt (Co), % 18.5 to 22
0
Iron (Fe), % 23 to 38.9
98 to 98.5
Manganese (Mn), % 0 to 2.0
1.3 to 1.6
Molybdenum (Mo), % 2.5 to 3.0
0
Nickel (Ni), % 18 to 22
0
Niobium (Nb), % 0.75 to 1.3
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0.080 to 0.13
Tungsten (W), % 2.0 to 3.0
0