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EN 1.1133 Steel vs. EN 1.4550 Stainless Steel

Both EN 1.1133 steel and EN 1.4550 stainless steel are iron alloys. They have 71% of their average alloy composition in common. There are 32 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 1.1133 steel and the bottom bar is EN 1.4550 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170 to 180
200
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 19 to 24
42
Fatigue Strength, MPa 230 to 310
210
Impact Strength: V-Notched Charpy, J 45 to 48
90
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Shear Strength, MPa 370 to 380
430
Tensile Strength: Ultimate (UTS), MPa 580 to 620
620
Tensile Strength: Yield (Proof), MPa 320 to 460
230

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 400
940
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1420
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 49
15
Thermal Expansion, µm/m-K 12
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
18
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.5
3.6
Embodied Energy, MJ/kg 19
51
Embodied Water, L/kg 48
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 120
210
Resilience: Unit (Modulus of Resilience), kJ/m3 270 to 550
140
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 21 to 22
22
Strength to Weight: Bending, points 20 to 21
21
Thermal Diffusivity, mm2/s 13
4.0
Thermal Shock Resistance, points 18 to 19
14

Alloy Composition

Carbon (C), % 0.17 to 0.23
0 to 0.080
Chromium (Cr), % 0 to 0.4
17 to 19
Iron (Fe), % 96.9 to 98.8
64.9 to 74
Manganese (Mn), % 1.0 to 1.5
0 to 2.0
Molybdenum (Mo), % 0 to 0.1
0
Nickel (Ni), % 0 to 0.4
9.0 to 12
Niobium (Nb), % 0
0 to 1.0
Phosphorus (P), % 0 to 0.035
0 to 0.045
Silicon (Si), % 0 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.035
0 to 0.015