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EN 1.4557 Stainless Steel vs. EN 1.6311 Steel

Both EN 1.4557 stainless steel and EN 1.6311 steel are iron alloys. They have 55% 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 1.4557 stainless steel and the bottom bar is EN 1.6311 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
200
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 40
19
Fatigue Strength, MPa 260
340
Impact Strength: V-Notched Charpy, J 56
51
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 80
73
Tensile Strength: Ultimate (UTS), MPa 560
650
Tensile Strength: Yield (Proof), MPa 300
490

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1090
410
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 460
470
Thermal Conductivity, W/m-K 15
39
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.2
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 29
2.9
Density, g/cm3 8.0
7.9
Embodied Carbon, kg CO2/kg material 5.6
1.6
Embodied Energy, MJ/kg 76
22
Embodied Water, L/kg 190
51

Common Calculations

PREN (Pitting Resistance) 45
2.1
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
120
Resilience: Unit (Modulus of Resilience), kJ/m3 210
650
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 19
23
Strength to Weight: Bending, points 19
21
Thermal Diffusivity, mm2/s 4.0
10
Thermal Shock Resistance, points 12
19

Alloy Composition

Carbon (C), % 0 to 0.020
0.15 to 0.23
Chromium (Cr), % 19.5 to 20.5
0 to 0.5
Copper (Cu), % 0.5 to 1.0
0 to 0.2
Iron (Fe), % 49.5 to 56.3
95.9 to 98
Manganese (Mn), % 0 to 1.2
1.0 to 1.5
Molybdenum (Mo), % 6.0 to 7.0
0.45 to 0.6
Nickel (Ni), % 17.5 to 19.5
0.4 to 0.8
Nitrogen (N), % 0.18 to 0.24
0 to 0.012
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 0.4
Sulfur (S), % 0 to 0.010
0 to 0.035
Vanadium (V), % 0
0 to 0.020