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EN 1.7366 Steel vs. EN 1.4557 Stainless Steel

Both EN 1.7366 steel and EN 1.4557 stainless steel are iron alloys. They have 59% 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 1.7366 steel and the bottom bar is EN 1.4557 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140 to 210
160
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 17 to 19
40
Fatigue Strength, MPa 160 to 320
260
Impact Strength: V-Notched Charpy, J 38
56
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
80
Tensile Strength: Ultimate (UTS), MPa 460 to 710
560
Tensile Strength: Yield (Proof), MPa 230 to 480
300

Thermal Properties

Latent Heat of Fusion, J/g 260
300
Maximum Temperature: Mechanical, °C 510
1090
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
460
Thermal Conductivity, W/m-K 40
15
Thermal Expansion, µm/m-K 13
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.1
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 9.3
2.2

Otherwise Unclassified Properties

Base Metal Price, % relative 4.3
29
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 1.7
5.6
Embodied Energy, MJ/kg 23
76
Embodied Water, L/kg 69
190

Common Calculations

PREN (Pitting Resistance) 6.8
45
Resilience: Ultimate (Unit Rupture Work), MJ/m3 74 to 110
190
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 600
210
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 16 to 25
19
Strength to Weight: Bending, points 17 to 23
19
Thermal Diffusivity, mm2/s 11
4.0
Thermal Shock Resistance, points 13 to 20
12

Alloy Composition

Carbon (C), % 0 to 0.18
0 to 0.020
Chromium (Cr), % 4.0 to 6.0
19.5 to 20.5
Copper (Cu), % 0
0.5 to 1.0
Iron (Fe), % 91.9 to 95.3
49.5 to 56.3
Manganese (Mn), % 0.3 to 0.8
0 to 1.2
Molybdenum (Mo), % 0.45 to 0.65
6.0 to 7.0
Nickel (Ni), % 0
17.5 to 19.5
Nitrogen (N), % 0
0.18 to 0.24
Phosphorus (P), % 0 to 0.025
0 to 0.030
Silicon (Si), % 0 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.010