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EN 1.4028 Stainless Steel vs. AISI 384 Stainless Steel

Both EN 1.4028 stainless steel and AISI 384 stainless steel are iron alloys. They have 79% 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 EN 1.4028 stainless steel and the bottom bar is AISI 384 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
76
Tensile Strength: Ultimate (UTS), MPa 660 to 930
480

Thermal Properties

Latent Heat of Fusion, J/g 270
290
Maximum Temperature: Corrosion, °C 390
410
Maximum Temperature: Mechanical, °C 760
910
Melting Completion (Liquidus), °C 1440
1420
Melting Onset (Solidus), °C 1400
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 30
16
Thermal Expansion, µm/m-K 11
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.8
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 3.2
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
20
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 1.9
3.7
Embodied Energy, MJ/kg 27
52
Embodied Water, L/kg 100
150

Common Calculations

PREN (Pitting Resistance) 13
16
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 24 to 33
17
Strength to Weight: Bending, points 22 to 27
17
Thermal Diffusivity, mm2/s 8.1
4.3
Thermal Shock Resistance, points 23 to 32
11

Alloy Composition

Carbon (C), % 0.26 to 0.35
0 to 0.040
Chromium (Cr), % 12 to 14
15 to 17
Iron (Fe), % 83.1 to 87.7
60.9 to 68
Manganese (Mn), % 0 to 1.5
0 to 2.0
Nickel (Ni), % 0
17 to 19
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030