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EN 1.4724 Stainless Steel vs. EN 1.1141 Steel

Both EN 1.4724 stainless steel and EN 1.1141 steel are iron alloys. Both are furnished in the annealed condition. They have 85% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.4724 stainless steel and the bottom bar is EN 1.1141 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
120
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 16
28
Fatigue Strength, MPa 170
170
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
73
Shear Strength, MPa 340
280
Tensile Strength: Ultimate (UTS), MPa 550
420
Tensile Strength: Yield (Proof), MPa 280
220

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 850
400
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1390
1420
Specific Heat Capacity, J/kg-K 490
470
Thermal Conductivity, W/m-K 21
51
Thermal Expansion, µm/m-K 11
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
8.0

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
1.8
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.0
1.4
Embodied Energy, MJ/kg 28
18
Embodied Water, L/kg 110
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 73
99
Resilience: Unit (Modulus of Resilience), kJ/m3 210
130
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 20
15
Strength to Weight: Bending, points 19
16
Thermal Diffusivity, mm2/s 5.6
14
Thermal Shock Resistance, points 19
13

Alloy Composition

Aluminum (Al), % 0.7 to 1.2
0
Carbon (C), % 0 to 0.12
0.12 to 0.18
Chromium (Cr), % 12 to 14
0
Iron (Fe), % 82.2 to 86.6
98.8 to 99.58
Manganese (Mn), % 0 to 1.0
0.3 to 0.6
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0.7 to 1.4
0 to 0.4
Sulfur (S), % 0 to 0.015
0 to 0.035