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EN 1.4986 Stainless Steel vs. AISI 347 Stainless Steel

Both EN 1.4986 stainless steel and AISI 347 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 (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.4986 stainless steel and the bottom bar is AISI 347 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230
160 to 210
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 18
34 to 46
Fatigue Strength, MPa 350
220 to 270
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
77
Shear Strength, MPa 460
430 to 460
Tensile Strength: Ultimate (UTS), MPa 750
610 to 690
Tensile Strength: Yield (Proof), MPa 560
240 to 350

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Maximum Temperature: Corrosion, °C 520
480
Maximum Temperature: Mechanical, °C 940
870
Melting Completion (Liquidus), °C 1450
1430
Melting Onset (Solidus), °C 1400
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 15
16
Thermal Expansion, µm/m-K 17
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 25
19
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 4.8
3.6
Embodied Energy, MJ/kg 67
52
Embodied Water, L/kg 150
150

Common Calculations

PREN (Pitting Resistance) 22
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
190 to 220
Resilience: Unit (Modulus of Resilience), kJ/m3 790
150 to 310
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 26
22 to 25
Strength to Weight: Bending, points 23
20 to 22
Thermal Diffusivity, mm2/s 4.0
4.3
Thermal Shock Resistance, points 16
13 to 15

Alloy Composition

Boron (B), % 0.050 to 0.1
0
Carbon (C), % 0.040 to 0.1
0 to 0.080
Chromium (Cr), % 15.5 to 17.5
17 to 19
Iron (Fe), % 59.4 to 66.6
64.1 to 74
Manganese (Mn), % 0 to 1.5
0 to 2.0
Molybdenum (Mo), % 1.6 to 2.0
0
Nickel (Ni), % 15.5 to 17.5
9.0 to 13
Niobium (Nb), % 0.4 to 1.2
0 to 1.0
Phosphorus (P), % 0 to 0.045
0 to 0.045
Silicon (Si), % 0.3 to 0.6
0 to 0.75
Sulfur (S), % 0 to 0.030
0 to 0.030