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EN 1.7220 Steel vs. AISI 301 Stainless Steel

Both EN 1.7220 steel and AISI 301 stainless steel are iron alloys. They have 76% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is EN 1.7220 steel and the bottom bar is AISI 301 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160 to 290
190 to 440
Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Tensile Strength: Ultimate (UTS), MPa 520 to 1720
590 to 1460

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 420
840
Melting Completion (Liquidus), °C 1460
1420
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 44
16
Thermal Expansion, µm/m-K 13
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 2.5
13
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.5
2.7
Embodied Energy, MJ/kg 20
39
Embodied Water, L/kg 51
130

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 18 to 61
21 to 52
Strength to Weight: Bending, points 18 to 41
20 to 37
Thermal Diffusivity, mm2/s 12
4.2
Thermal Shock Resistance, points 15 to 50
12 to 31

Alloy Composition

Carbon (C), % 0.3 to 0.37
0 to 0.15
Chromium (Cr), % 0.9 to 1.2
16 to 18
Iron (Fe), % 96.8 to 98.1
70.7 to 78
Manganese (Mn), % 0.6 to 0.9
0 to 2.0
Molybdenum (Mo), % 0.15 to 0.3
0
Nickel (Ni), % 0
6.0 to 8.0
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.035
0 to 0.045
Silicon (Si), % 0 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.035
0 to 0.030

Comparable Variants