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EN 1.4951 Stainless Steel vs. EN 1.5501 Steel

Both EN 1.4951 stainless steel and EN 1.5501 steel are iron alloys. They have 54% of their average alloy composition in common. There are 31 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 1.4951 stainless steel and the bottom bar is EN 1.5501 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
120 to 150
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 38
12 to 17
Fatigue Strength, MPa 190
180 to 270
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 79
73
Shear Strength, MPa 430
270 to 310
Tensile Strength: Ultimate (UTS), MPa 630
390 to 510
Tensile Strength: Yield (Proof), MPa 220
260 to 420

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1100
400
Melting Completion (Liquidus), °C 1410
1460
Melting Onset (Solidus), °C 1360
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
52
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 25
1.8
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 4.3
1.4
Embodied Energy, MJ/kg 61
18
Embodied Water, L/kg 190
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
40 to 83
Resilience: Unit (Modulus of Resilience), kJ/m3 130
190 to 460
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 22
14 to 18
Strength to Weight: Bending, points 21
15 to 18
Thermal Diffusivity, mm2/s 3.9
14
Thermal Shock Resistance, points 14
11 to 15

Alloy Composition

Boron (B), % 0
0.00080 to 0.0050
Carbon (C), % 0.040 to 0.080
0.13 to 0.16
Chromium (Cr), % 24 to 26
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 49.1 to 57
98.4 to 99.269
Manganese (Mn), % 0 to 2.0
0.6 to 0.8
Nickel (Ni), % 19 to 22
0
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.035
0 to 0.025
Silicon (Si), % 0 to 0.7
0 to 0.3
Sulfur (S), % 0 to 0.015
0 to 0.025