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EN 1.4971 Stainless Steel vs. SAE-AISI 5160 Steel

Both EN 1.4971 stainless steel and SAE-AISI 5160 steel are iron alloys. They have a modest 33% of their average alloy composition in common, which, by itself, doesn't mean much. There are 29 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 EN 1.4971 stainless steel and the bottom bar is SAE-AISI 5160 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 240
200 to 340
Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 34
12 to 18
Fatigue Strength, MPa 270
180 to 650
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 81
73
Shear Strength, MPa 530
390 to 700
Tensile Strength: Ultimate (UTS), MPa 800
660 to 1150
Tensile Strength: Yield (Proof), MPa 340
280 to 1010

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1100
420
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1410
1410
Specific Heat Capacity, J/kg-K 450
470
Thermal Conductivity, W/m-K 13
43
Thermal Expansion, µm/m-K 15
13

Otherwise Unclassified Properties

Base Metal Price, % relative 70
2.1
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 300
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
73 to 160
Resilience: Unit (Modulus of Resilience), kJ/m3 280
200 to 2700
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 26
23 to 41
Strength to Weight: Bending, points 23
22 to 31
Thermal Diffusivity, mm2/s 3.4
12
Thermal Shock Resistance, points 19
19 to 34

Alloy Composition

Carbon (C), % 0.080 to 0.16
0.56 to 0.61
Chromium (Cr), % 20 to 22.5
0.7 to 0.9
Cobalt (Co), % 18.5 to 21
0
Iron (Fe), % 24.3 to 37.1
97.1 to 97.8
Manganese (Mn), % 0 to 2.0
0.75 to 1.0
Molybdenum (Mo), % 2.5 to 3.5
0
Nickel (Ni), % 19 to 21
0
Niobium (Nb), % 0.75 to 1.3
0
Nitrogen (N), % 0.1 to 0.2
0
Phosphorus (P), % 0 to 0.035
0 to 0.035
Silicon (Si), % 0 to 1.0
0.15 to 0.35
Sulfur (S), % 0 to 0.015
0 to 0.040
Tungsten (W), % 2.0 to 3.0
0