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EN 1.4518 Stainless Steel vs. AISI 317LM Stainless Steel

Both EN 1.4518 stainless steel and AISI 317LM stainless steel are iron alloys. They have a moderately high 93% 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 1.4518 stainless steel and the bottom bar is AISI 317LM stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34
46
Fatigue Strength, MPa 160
210
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 79
79
Tensile Strength: Ultimate (UTS), MPa 490
590
Tensile Strength: Yield (Proof), MPa 210
230

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Corrosion, °C 420
420
Maximum Temperature: Mechanical, °C 1000
300
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1400
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 15
14
Thermal Expansion, µm/m-K 12
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 20
24
Density, g/cm3 7.9
8.0
Embodied Carbon, kg CO2/kg material 4.0
4.8
Embodied Energy, MJ/kg 55
65
Embodied Water, L/kg 160
170

Common Calculations

PREN (Pitting Resistance) 30
35
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
210
Resilience: Unit (Modulus of Resilience), kJ/m3 100
130
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 17
21
Strength to Weight: Bending, points 18
20
Thermal Diffusivity, mm2/s 4.1
3.8
Thermal Shock Resistance, points 14
13

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 18 to 20
18 to 20
Iron (Fe), % 61.4 to 70
54.4 to 64.5
Manganese (Mn), % 0 to 1.5
0 to 2.0
Molybdenum (Mo), % 3.0 to 3.5
4.0 to 5.0
Nickel (Ni), % 9.0 to 12
13.5 to 17.5
Nitrogen (N), % 0
0 to 0.2
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 1.5
0 to 0.75
Sulfur (S), % 0 to 0.030
0 to 0.030