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EN 1.0031 Steel vs. EN 1.4451 Stainless Steel

Both EN 1.0031 steel and EN 1.4451 stainless steel are iron alloys. They have 61% of their average alloy composition in common. There are 30 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 EN 1.0031 steel and the bottom bar is EN 1.4451 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 89
220
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 28
25
Fatigue Strength, MPa 160
370
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 73
80
Tensile Strength: Ultimate (UTS), MPa 310
750
Tensile Strength: Yield (Proof), MPa 210
540

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 400
1100
Melting Completion (Liquidus), °C 1470
1430
Melting Onset (Solidus), °C 1420
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 53
17
Thermal Expansion, µm/m-K 12
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.0
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
20
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.4
3.8
Embodied Energy, MJ/kg 18
53
Embodied Water, L/kg 45
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 78
170
Resilience: Unit (Modulus of Resilience), kJ/m3 120
710
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 11
27
Strength to Weight: Bending, points 13
23
Thermal Diffusivity, mm2/s 14
4.5
Thermal Shock Resistance, points 9.8
16

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.030
Chromium (Cr), % 0
25 to 27
Copper (Cu), % 0
2.8 to 3.5
Iron (Fe), % 98.8 to 100
56.2 to 64.6
Manganese (Mn), % 0 to 0.7
0 to 1.5
Molybdenum (Mo), % 0
2.5 to 3.5
Nickel (Ni), % 0
5.0 to 7.0
Nitrogen (N), % 0
0.12 to 0.22
Phosphorus (P), % 0 to 0.045
0 to 0.035
Silicon (Si), % 0 to 0.35
0 to 1.0
Sulfur (S), % 0 to 0.045
0 to 0.025