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EN 1.4417 Stainless Steel vs. EN 1.3551 Steel

Both EN 1.4417 stainless steel and EN 1.3551 steel are iron alloys. They have 70% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is EN 1.4417 stainless steel and the bottom bar is EN 1.3551 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 81
75
Tensile Strength: Ultimate (UTS), MPa 730
720

Thermal Properties

Latent Heat of Fusion, J/g 300
260
Maximum Temperature: Mechanical, °C 1100
530
Melting Completion (Liquidus), °C 1450
1490
Melting Onset (Solidus), °C 1410
1450
Specific Heat Capacity, J/kg-K 470
460
Thermal Conductivity, W/m-K 17
36
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
8.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
9.9

Otherwise Unclassified Properties

Base Metal Price, % relative 21
9.0
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 4.1
4.9
Embodied Energy, MJ/kg 57
71
Embodied Water, L/kg 180
82

Common Calculations

PREN (Pitting Resistance) 41
18
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 26
26
Strength to Weight: Bending, points 23
23
Thermal Diffusivity, mm2/s 4.6
9.8
Thermal Shock Resistance, points 20
21

Alloy Composition

Carbon (C), % 0 to 0.030
0.77 to 0.85
Chromium (Cr), % 24 to 26
3.9 to 4.3
Copper (Cu), % 0 to 1.0
0 to 0.3
Iron (Fe), % 56.7 to 66.9
88.8 to 91.1
Manganese (Mn), % 0 to 1.5
0.15 to 0.35
Molybdenum (Mo), % 3.0 to 4.0
4.0 to 4.5
Nickel (Ni), % 6.0 to 8.5
0
Nitrogen (N), % 0.15 to 0.25
0
Phosphorus (P), % 0 to 0.030
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.4
Sulfur (S), % 0 to 0.020
0 to 0.015
Tungsten (W), % 0 to 1.0
0 to 0.25
Vanadium (V), % 0
0.9 to 1.1