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EN 1.1181 Steel vs. AISI 317L Stainless Steel

Both EN 1.1181 steel and AISI 317L stainless steel are iron alloys. They have 64% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is EN 1.1181 steel and the bottom bar is AISI 317L stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160 to 180
180
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 19 to 20
44
Fatigue Strength, MPa 190 to 260
220
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
82
Shear Strength, MPa 350 to 390
380
Tensile Strength: Ultimate (UTS), MPa 560 to 620
550
Tensile Strength: Yield (Proof), MPa 280 to 380
250

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 400
1010
Melting Completion (Liquidus), °C 1460
1400
Melting Onset (Solidus), °C 1420
1380
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 42
14
Thermal Expansion, µm/m-K 11
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
21
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.4
4.3
Embodied Energy, MJ/kg 19
59
Embodied Water, L/kg 47
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 90 to 110
200
Resilience: Unit (Modulus of Resilience), kJ/m3 210 to 380
150
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 20 to 22
19
Strength to Weight: Bending, points 19 to 21
19
Thermal Diffusivity, mm2/s 11
3.8
Thermal Shock Resistance, points 19 to 21
12

Alloy Composition

Carbon (C), % 0.32 to 0.39
0 to 0.030
Chromium (Cr), % 0 to 0.4
18 to 20
Iron (Fe), % 97.4 to 99.18
58 to 68
Manganese (Mn), % 0.5 to 0.8
0 to 2.0
Molybdenum (Mo), % 0 to 0.1
3.0 to 4.0
Nickel (Ni), % 0 to 0.4
11 to 15
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 0.75
Sulfur (S), % 0 to 0.035
0 to 0.030