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EN 1.4520 Stainless Steel vs. AISI 317 Stainless Steel

Both EN 1.4520 stainless steel and AISI 317 stainless steel are iron alloys. They have 81% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4520 stainless steel and the bottom bar is AISI 317 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
170 to 220
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 26
35 to 55
Fatigue Strength, MPa 160
250 to 330
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
79
Shear Strength, MPa 310
420 to 470
Tensile Strength: Ultimate (UTS), MPa 480
580 to 710
Tensile Strength: Yield (Proof), MPa 220
250 to 420

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Maximum Temperature: Corrosion, °C 500
420
Maximum Temperature: Mechanical, °C 870
590
Melting Completion (Liquidus), °C 1440
1400
Melting Onset (Solidus), °C 1400
1380
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 20
15
Thermal Expansion, µm/m-K 10
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 8.5
21
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.2
4.3
Embodied Energy, MJ/kg 32
59
Embodied Water, L/kg 120
160

Common Calculations

PREN (Pitting Resistance) 17
31
Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
210 to 260
Resilience: Unit (Modulus of Resilience), kJ/m3 120
150 to 430
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 17
20 to 25
Strength to Weight: Bending, points 18
20 to 22
Thermal Diffusivity, mm2/s 5.4
4.1
Thermal Shock Resistance, points 17
12 to 15

Alloy Composition

Carbon (C), % 0 to 0.025
0 to 0.080
Chromium (Cr), % 16 to 18
18 to 20
Iron (Fe), % 80.1 to 83.9
58 to 68
Manganese (Mn), % 0 to 0.5
0 to 2.0
Molybdenum (Mo), % 0
3.0 to 4.0
Nickel (Ni), % 0
11 to 15
Nitrogen (N), % 0 to 0.015
0 to 0.1
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 0.5
0 to 0.75
Sulfur (S), % 0 to 0.015
0 to 0.030
Titanium (Ti), % 0.15 to 0.8
0