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AISI 312 Stainless Steel vs. EN 1.7218 Steel

Both AISI 312 stainless steel and EN 1.7218 steel are iron alloys. They have 68% 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 AISI 312 stainless steel and the bottom bar is EN 1.7218 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 250
150 to 230
Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 80
73
Tensile Strength: Ultimate (UTS), MPa 780
500 to 1550

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1100
420
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1390
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 16
44
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 17
2.6
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 3.4
1.5
Embodied Energy, MJ/kg 48
20
Embodied Water, L/kg 170
52

Common Calculations

Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 28
18 to 55
Strength to Weight: Bending, points 24
18 to 38
Thermal Diffusivity, mm2/s 4.3
12
Thermal Shock Resistance, points 21
15 to 46

Alloy Composition

Aluminum (Al), % 0
0 to 0.040
Carbon (C), % 0 to 0.030
0.22 to 0.29
Chromium (Cr), % 24 to 26
0.9 to 1.2
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 62.2 to 69.2
96.2 to 98.1
Manganese (Mn), % 0 to 2.0
0.6 to 0.9
Molybdenum (Mo), % 1.2 to 2.0
0.15 to 0.3
Nickel (Ni), % 5.5 to 6.5
0 to 0.3
Nitrogen (N), % 0.14 to 0.2
0
Phosphorus (P), % 0 to 0.045
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.035