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EN 1.3553 Steel vs. EN 1.4621 Stainless Steel

Both EN 1.3553 steel and EN 1.4621 stainless steel are iron alloys. They have 82% 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 1.3553 steel and the bottom bar is EN 1.4621 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 77
78
Tensile Strength: Ultimate (UTS), MPa 720
500

Thermal Properties

Latent Heat of Fusion, J/g 260
290
Maximum Temperature: Mechanical, °C 540
970
Melting Completion (Liquidus), °C 1620
1440
Melting Onset (Solidus), °C 1570
1390
Specific Heat Capacity, J/kg-K 440
480
Thermal Conductivity, W/m-K 24
21
Thermal Expansion, µm/m-K 12
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
2.6
Electrical Conductivity: Equal Weight (Specific), % IACS 11
3.1

Otherwise Unclassified Properties

Base Metal Price, % relative 24
14
Density, g/cm3 8.4
7.7
Embodied Carbon, kg CO2/kg material 8.5
2.8
Embodied Energy, MJ/kg 130
41
Embodied Water, L/kg 96
140

Common Calculations

PREN (Pitting Resistance) 31
21
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 24
18
Strength to Weight: Bending, points 21
18
Thermal Diffusivity, mm2/s 6.4
5.7
Thermal Shock Resistance, points 21
17

Alloy Composition

Carbon (C), % 0.78 to 0.86
0 to 0.030
Chromium (Cr), % 3.9 to 4.3
20 to 21.5
Copper (Cu), % 0 to 0.3
0.1 to 1.0
Iron (Fe), % 80.7 to 83.7
74.4 to 79.7
Manganese (Mn), % 0 to 0.4
0 to 1.0
Molybdenum (Mo), % 4.7 to 5.2
0
Niobium (Nb), % 0
0.2 to 1.0
Nitrogen (N), % 0
0 to 0.030
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.015
Tungsten (W), % 6.0 to 6.7
0
Vanadium (V), % 1.7 to 2.0
0