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EN 1.4945 Stainless Steel vs. AISI 317LN Stainless Steel

Both EN 1.4945 stainless steel and AISI 317LN stainless steel are iron alloys. They have a moderately high 93% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is EN 1.4945 stainless steel and the bottom bar is AISI 317LN stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 220
190
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 19 to 34
45
Fatigue Strength, MPa 230 to 350
250
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
79
Shear Strength, MPa 430 to 460
430
Tensile Strength: Ultimate (UTS), MPa 640 to 740
620
Tensile Strength: Yield (Proof), MPa 290 to 550
270

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Maximum Temperature: Corrosion, °C 520
420
Maximum Temperature: Mechanical, °C 920
1010
Melting Completion (Liquidus), °C 1490
1450
Melting Onset (Solidus), °C 1440
1400
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 14
14
Thermal Expansion, µm/m-K 17
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 3.2
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 30
21
Density, g/cm3 8.1
7.9
Embodied Carbon, kg CO2/kg material 5.0
4.3
Embodied Energy, MJ/kg 73
59
Embodied Water, L/kg 150
160

Common Calculations

PREN (Pitting Resistance) 23
33
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130 to 180
220
Resilience: Unit (Modulus of Resilience), kJ/m3 210 to 760
190
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 22 to 25
22
Strength to Weight: Bending, points 20 to 22
20
Thermal Diffusivity, mm2/s 3.7
3.9
Thermal Shock Resistance, points 14 to 16
14

Alloy Composition

Carbon (C), % 0.040 to 0.1
0 to 0.030
Chromium (Cr), % 15.5 to 17.5
18 to 20
Iron (Fe), % 57.9 to 65.7
57.9 to 67.9
Manganese (Mn), % 0 to 1.5
0 to 2.0
Molybdenum (Mo), % 0
3.0 to 4.0
Nickel (Ni), % 15.5 to 17.5
11 to 15
Niobium (Nb), % 0.4 to 1.2
0
Nitrogen (N), % 0.060 to 0.14
0.1 to 0.22
Phosphorus (P), % 0 to 0.035
0 to 0.045
Silicon (Si), % 0.3 to 0.6
0 to 0.75
Sulfur (S), % 0 to 0.015
0 to 0.030
Tungsten (W), % 2.5 to 3.5
0