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AISI 384 Stainless Steel vs. EN 1.4634 Stainless Steel

Both AISI 384 stainless steel and EN 1.4634 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 82% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is AISI 384 stainless steel and the bottom bar is EN 1.4634 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Tensile Strength: Ultimate (UTS), MPa 480
540

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Maximum Temperature: Corrosion, °C 410
500
Maximum Temperature: Mechanical, °C 910
900
Melting Completion (Liquidus), °C 1420
1430
Melting Onset (Solidus), °C 1380
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 16
21
Thermal Expansion, µm/m-K 16
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 20
13
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 3.7
2.9
Embodied Energy, MJ/kg 52
42
Embodied Water, L/kg 150
140

Common Calculations

PREN (Pitting Resistance) 16
19
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17
20
Strength to Weight: Bending, points 17
19
Thermal Diffusivity, mm2/s 4.3
5.8
Thermal Shock Resistance, points 11
19

Alloy Composition

Aluminum (Al), % 0
0.2 to 1.5
Carbon (C), % 0 to 0.040
0 to 0.030
Chromium (Cr), % 15 to 17
17.5 to 18.5
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 60.9 to 68
74.9 to 81.8
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 17 to 19
0 to 0.5
Niobium (Nb), % 0
0.3 to 1.0
Phosphorus (P), % 0 to 0.045
0 to 0.050
Silicon (Si), % 0 to 1.0
0.2 to 1.5
Sulfur (S), % 0 to 0.030
0 to 0.050