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EN 1.1127 Steel vs. EN 1.4558 Stainless Steel

Both EN 1.1127 steel and EN 1.4558 stainless steel are iron alloys. They have 45% 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 1.1127 steel and the bottom bar is EN 1.4558 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 14 to 25
39
Fatigue Strength, MPa 280 to 370
170
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Shear Strength, MPa 420 to 480
350
Tensile Strength: Ultimate (UTS), MPa 660 to 790
510
Tensile Strength: Yield (Proof), MPa 410 to 580
200

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 400
1100
Melting Completion (Liquidus), °C 1460
1400
Melting Onset (Solidus), °C 1410
1350
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 49
12
Thermal Expansion, µm/m-K 12
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
31
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 1.5
5.5
Embodied Energy, MJ/kg 19
77
Embodied Water, L/kg 49
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 90 to 140
160
Resilience: Unit (Modulus of Resilience), kJ/m3 440 to 880
100
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 23 to 28
18
Strength to Weight: Bending, points 22 to 24
18
Thermal Diffusivity, mm2/s 13
3.1
Thermal Shock Resistance, points 21 to 25
12

Alloy Composition

Aluminum (Al), % 0
0.15 to 0.45
Carbon (C), % 0.34 to 0.42
0 to 0.030
Chromium (Cr), % 0 to 0.4
20 to 23
Iron (Fe), % 96.6 to 98.1
39.2 to 47.9
Manganese (Mn), % 1.4 to 1.7
0 to 1.0
Molybdenum (Mo), % 0 to 0.1
0
Nickel (Ni), % 0 to 0.4
32 to 35
Phosphorus (P), % 0 to 0.035
0 to 0.020
Silicon (Si), % 0.15 to 0.35
0 to 0.7
Sulfur (S), % 0 to 0.035
0 to 0.015
Titanium (Ti), % 0
0 to 0.6