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EN 1.4646 Stainless Steel vs. EN 1.7220 Steel

Both EN 1.4646 stainless steel and EN 1.7220 steel are iron alloys. They have 65% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is EN 1.4646 stainless steel and the bottom bar is EN 1.7220 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
160 to 290
Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Tensile Strength: Ultimate (UTS), MPa 750
520 to 1720

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 910
420
Melting Completion (Liquidus), °C 1390
1460
Melting Onset (Solidus), °C 1340
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 17
13

Otherwise Unclassified Properties

Base Metal Price, % relative 13
2.5
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.8
1.5
Embodied Energy, MJ/kg 41
20
Embodied Water, L/kg 160
51

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 27
18 to 61
Strength to Weight: Bending, points 24
18 to 41
Thermal Shock Resistance, points 16
15 to 50

Alloy Composition

Carbon (C), % 0.020 to 0.1
0.3 to 0.37
Chromium (Cr), % 17 to 19
0.9 to 1.2
Copper (Cu), % 1.5 to 3.0
0
Iron (Fe), % 59 to 67.3
96.8 to 98.1
Manganese (Mn), % 10.5 to 12.5
0.6 to 0.9
Molybdenum (Mo), % 0 to 0.5
0.15 to 0.3
Nickel (Ni), % 3.5 to 4.5
0
Nitrogen (N), % 0.2 to 0.3
0
Phosphorus (P), % 0 to 0.050
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 0.4
Sulfur (S), % 0 to 0.015
0 to 0.035