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EN 1.7321 Steel vs. AISI 205 Stainless Steel

Both EN 1.7321 steel and AISI 205 stainless steel are iron alloys. They have 67% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is EN 1.7321 steel and the bottom bar is AISI 205 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150 to 170
210 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 490 to 1460
800 to 1430

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 410
880
Melting Completion (Liquidus), °C 1460
1380
Melting Onset (Solidus), °C 1420
1340
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 13
18

Otherwise Unclassified Properties

Base Metal Price, % relative 2.5
11
Density, g/cm3 7.9
7.6
Embodied Carbon, kg CO2/kg material 1.5
2.6
Embodied Energy, MJ/kg 20
37
Embodied Water, L/kg 50
150

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
26
Strength to Weight: Axial, points 17 to 52
29 to 52
Strength to Weight: Bending, points 18 to 36
25 to 37
Thermal Shock Resistance, points 14 to 43
16 to 29

Alloy Composition

Carbon (C), % 0.17 to 0.23
0.12 to 0.25
Chromium (Cr), % 0.3 to 0.6
16.5 to 18.5
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 97.1 to 98.4
62.6 to 68.1
Manganese (Mn), % 0.7 to 1.0
14 to 15.5
Molybdenum (Mo), % 0.4 to 0.5
0
Nickel (Ni), % 0
1.0 to 1.7
Nitrogen (N), % 0
0.32 to 0.4
Phosphorus (P), % 0 to 0.025
0 to 0.060
Silicon (Si), % 0 to 0.3
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.030