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EN 1.4971 Stainless Steel vs. EN 1.0540 Steel

Both EN 1.4971 stainless steel and EN 1.0540 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 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 EN 1.0540 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 240
190
Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 34
14
Fatigue Strength, MPa 270
210
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 81
72
Shear Strength, MPa 530
400
Tensile Strength: Ultimate (UTS), MPa 800
660
Tensile Strength: Yield (Proof), MPa 340
330

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 450
470
Thermal Conductivity, W/m-K 13
48
Thermal Expansion, µm/m-K 15
12

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
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
75
Resilience: Unit (Modulus of Resilience), kJ/m3 280
290
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 26
23
Strength to Weight: Bending, points 23
22
Thermal Diffusivity, mm2/s 3.4
13
Thermal Shock Resistance, points 19
21

Alloy Composition

Carbon (C), % 0.080 to 0.16
0.47 to 0.55
Chromium (Cr), % 20 to 22.5
0 to 0.4
Cobalt (Co), % 18.5 to 21
0
Iron (Fe), % 24.3 to 37.1
97.2 to 98.9
Manganese (Mn), % 0 to 2.0
0.6 to 0.9
Molybdenum (Mo), % 2.5 to 3.5
0 to 0.1
Nickel (Ni), % 19 to 21
0 to 0.4
Niobium (Nb), % 0.75 to 1.3
0
Nitrogen (N), % 0.1 to 0.2
0
Phosphorus (P), % 0 to 0.035
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 0.4
Sulfur (S), % 0 to 0.015
0 to 0.045
Tungsten (W), % 2.0 to 3.0
0