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EN 1.4542 Stainless Steel vs. EN 1.1140 Steel

Both EN 1.4542 stainless steel and EN 1.1140 steel are iron alloys. They have 75% 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 1.4542 stainless steel and the bottom bar is EN 1.1140 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 5.7 to 20
28
Fatigue Strength, MPa 370 to 640
170
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Shear Strength, MPa 550 to 860
280
Tensile Strength: Ultimate (UTS), MPa 880 to 1470
430
Tensile Strength: Yield (Proof), MPa 580 to 1300
230

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 860
400
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1380
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 16
51
Thermal Expansion, µm/m-K 11
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
8.0

Otherwise Unclassified Properties

Base Metal Price, % relative 13
1.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.7
1.4
Embodied Energy, MJ/kg 39
18
Embodied Water, L/kg 130
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 62 to 160
100
Resilience: Unit (Modulus of Resilience), kJ/m3 880 to 4360
140
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 31 to 52
15
Strength to Weight: Bending, points 26 to 37
16
Thermal Diffusivity, mm2/s 4.3
14
Thermal Shock Resistance, points 29 to 49
14

Alloy Composition

Carbon (C), % 0 to 0.070
0.12 to 0.18
Chromium (Cr), % 15 to 17
0
Copper (Cu), % 3.0 to 5.0
0
Iron (Fe), % 69.6 to 79
98.7 to 99.56
Manganese (Mn), % 0 to 1.5
0.3 to 0.6
Molybdenum (Mo), % 0 to 0.6
0
Nickel (Ni), % 3.0 to 5.0
0
Niobium (Nb), % 0 to 0.45
0
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 0.7
0 to 0.4
Sulfur (S), % 0 to 0.015
0.020 to 0.040