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EN 1.4618 Stainless Steel vs. AISI 347LN Stainless Steel

Both EN 1.4618 stainless steel and AISI 347LN stainless steel are iron alloys. They have a moderately high 92% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.4618 stainless steel and the bottom bar is AISI 347LN stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 210
180
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 51
40
Fatigue Strength, MPa 240 to 250
200
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
77
Shear Strength, MPa 480 to 500
400
Tensile Strength: Ultimate (UTS), MPa 680 to 700
590
Tensile Strength: Yield (Proof), MPa 250 to 260
230

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Maximum Temperature: Corrosion, °C 410
460
Maximum Temperature: Mechanical, °C 900
940
Melting Completion (Liquidus), °C 1400
1430
Melting Onset (Solidus), °C 1360
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
15
Thermal Expansion, µm/m-K 16
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 13
18
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.7
3.5
Embodied Energy, MJ/kg 39
49
Embodied Water, L/kg 150
150

Common Calculations

PREN (Pitting Resistance) 19
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 270 to 280
190
Resilience: Unit (Modulus of Resilience), kJ/m3 160 to 170
130
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 24 to 25
21
Strength to Weight: Bending, points 22 to 23
20
Thermal Diffusivity, mm2/s 4.0
4.1
Thermal Shock Resistance, points 15 to 16
13

Alloy Composition

Carbon (C), % 0 to 0.1
0.0050 to 0.020
Chromium (Cr), % 16.5 to 18.5
17 to 19
Copper (Cu), % 1.0 to 2.5
0
Iron (Fe), % 62.7 to 72.5
64.3 to 73.7
Manganese (Mn), % 5.5 to 9.5
0 to 2.0
Nickel (Ni), % 4.5 to 5.5
9.0 to 13
Niobium (Nb), % 0
0.2 to 0.5
Nitrogen (N), % 0 to 0.15
0.060 to 0.1
Phosphorus (P), % 0 to 0.070
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.030