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EN 1.4020 Stainless Steel vs. AISI 317LMN Stainless Steel

Both EN 1.4020 stainless steel and AISI 317LMN stainless steel are iron alloys. They have 81% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is EN 1.4020 stainless steel and the bottom bar is AISI 317LMN stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 340
190
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 13 to 34
45
Fatigue Strength, MPa 340 to 540
250
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
79
Shear Strength, MPa 510 to 680
430
Tensile Strength: Ultimate (UTS), MPa 770 to 1130
620
Tensile Strength: Yield (Proof), MPa 430 to 950
270

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Maximum Temperature: Corrosion, °C 410
420
Maximum Temperature: Mechanical, °C 890
1020
Melting Completion (Liquidus), °C 1390
1460
Melting Onset (Solidus), °C 1350
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 17
16

Otherwise Unclassified Properties

Base Metal Price, % relative 11
24
Density, g/cm3 7.6
8.0
Embodied Carbon, kg CO2/kg material 2.5
4.8
Embodied Energy, MJ/kg 37
65
Embodied Water, L/kg 150
170

Common Calculations

PREN (Pitting Resistance) 23
36
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 220
230
Resilience: Unit (Modulus of Resilience), kJ/m3 460 to 2290
180
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28 to 41
22
Strength to Weight: Bending, points 25 to 32
20
Thermal Shock Resistance, points 16 to 23
14

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.030
Chromium (Cr), % 16.5 to 19
17 to 20
Iron (Fe), % 62.8 to 71.8
54.4 to 65.4
Manganese (Mn), % 11 to 14
0 to 2.0
Molybdenum (Mo), % 0
4.0 to 5.0
Nickel (Ni), % 0.5 to 2.5
13.5 to 17.5
Nitrogen (N), % 0.2 to 0.45
0.1 to 0.2
Phosphorus (P), % 0 to 0.045
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 0.75
Sulfur (S), % 0 to 0.030
0 to 0.030