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EN 1.7321 Steel vs. EN 1.4646 Stainless Steel

Both EN 1.7321 steel and EN 1.4646 stainless 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 (13, in this case) are not shown.

For each property being compared, the top bar is EN 1.7321 steel and the bottom bar is EN 1.4646 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150 to 170
220
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
750

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 410
910
Melting Completion (Liquidus), °C 1460
1390
Melting Onset (Solidus), °C 1420
1340
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 13
17

Otherwise Unclassified Properties

Base Metal Price, % relative 2.5
13
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 1.5
2.8
Embodied Energy, MJ/kg 20
41
Embodied Water, L/kg 50
160

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17 to 52
27
Strength to Weight: Bending, points 18 to 36
24
Thermal Shock Resistance, points 14 to 43
16

Alloy Composition

Carbon (C), % 0.17 to 0.23
0.020 to 0.1
Chromium (Cr), % 0.3 to 0.6
17 to 19
Copper (Cu), % 0 to 0.25
1.5 to 3.0
Iron (Fe), % 97.1 to 98.4
59 to 67.3
Manganese (Mn), % 0.7 to 1.0
10.5 to 12.5
Molybdenum (Mo), % 0.4 to 0.5
0 to 0.5
Nickel (Ni), % 0
3.5 to 4.5
Nitrogen (N), % 0
0.2 to 0.3
Phosphorus (P), % 0 to 0.025
0 to 0.050
Silicon (Si), % 0 to 0.3
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.015