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EN 1.7149 Steel vs. AISI 316N Stainless Steel

Both EN 1.7149 steel and AISI 316N stainless steel are iron alloys. They have 69% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is EN 1.7149 steel and the bottom bar is AISI 316N stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150 to 180
190 to 350
Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
78
Tensile Strength: Ultimate (UTS), MPa 500 to 1460
620 to 1160

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 420
940
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 46
15
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
19
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.5
3.9
Embodied Energy, MJ/kg 19
53
Embodied Water, L/kg 52
150

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 18 to 52
22 to 41
Strength to Weight: Bending, points 18 to 36
20 to 31
Thermal Diffusivity, mm2/s 12
4.1
Thermal Shock Resistance, points 15 to 42
14 to 26

Alloy Composition

Carbon (C), % 0.17 to 0.22
0 to 0.080
Chromium (Cr), % 1.0 to 1.3
16 to 18
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 96.5 to 97.7
61.9 to 71.9
Manganese (Mn), % 1.1 to 1.4
0 to 2.0
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 0
10 to 14
Nitrogen (N), % 0
0.1 to 0.16
Phosphorus (P), % 0 to 0.025
0 to 0.045
Silicon (Si), % 0 to 0.3
0 to 0.75
Sulfur (S), % 0.020 to 0.040
0 to 0.030