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EN 1.4658 Stainless Steel vs. AISI 384 Stainless Steel

Both EN 1.4658 stainless steel and AISI 384 stainless steel are iron alloys. They have 82% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is EN 1.4658 stainless steel and the bottom bar is AISI 384 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 260
150
Elastic (Young's, Tensile) Modulus, GPa 210
200
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 81
76
Tensile Strength: Ultimate (UTS), MPa 900
480

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 460
410
Maximum Temperature: Mechanical, °C 1100
910
Melting Completion (Liquidus), °C 1450
1420
Melting Onset (Solidus), °C 1400
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 16
16
Thermal Expansion, µm/m-K 13
16

Otherwise Unclassified Properties

Base Metal Price, % relative 25
20
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 4.5
3.7
Embodied Energy, MJ/kg 61
52
Embodied Water, L/kg 200
150

Common Calculations

PREN (Pitting Resistance) 49
16
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 32
17
Strength to Weight: Bending, points 26
17
Thermal Diffusivity, mm2/s 4.3
4.3
Thermal Shock Resistance, points 24
11

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.040
Chromium (Cr), % 26 to 29
15 to 17
Cobalt (Co), % 0.5 to 2.0
0
Copper (Cu), % 0 to 1.0
0
Iron (Fe), % 50.9 to 63.7
60.9 to 68
Manganese (Mn), % 0 to 1.5
0 to 2.0
Molybdenum (Mo), % 4.0 to 5.0
0
Nickel (Ni), % 5.5 to 9.5
17 to 19
Nitrogen (N), % 0.3 to 0.5
0
Phosphorus (P), % 0 to 0.035
0 to 0.045
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.030