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EN 1.3549 Stainless Steel vs. AISI 384 Stainless Steel

Both EN 1.3549 stainless steel and AISI 384 stainless steel are iron alloys. They have 82% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.3549 stainless steel and the bottom bar is AISI 384 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
150
Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
76
Tensile Strength: Ultimate (UTS), MPa 730
480

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Maximum Temperature: Corrosion, °C 400
410
Maximum Temperature: Mechanical, °C 910
910
Melting Completion (Liquidus), °C 1430
1420
Melting Onset (Solidus), °C 1390
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 21
16
Thermal Expansion, µm/m-K 10
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 10
20
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.6
3.7
Embodied Energy, MJ/kg 37
52
Embodied Water, L/kg 130
150

Common Calculations

PREN (Pitting Resistance) 22
16
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 27
17
Strength to Weight: Bending, points 24
17
Thermal Diffusivity, mm2/s 5.6
4.3
Thermal Shock Resistance, points 26
11

Alloy Composition

Carbon (C), % 0.85 to 1.0
0 to 0.040
Chromium (Cr), % 17 to 19
15 to 17
Iron (Fe), % 77.5 to 82
60.9 to 68
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 0.9 to 1.3
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 0.030
0 to 0.030
Vanadium (V), % 0.070 to 0.12
0