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EN 1.3549 Stainless Steel vs. AISI 445 Stainless Steel

Both EN 1.3549 stainless steel and AISI 445 stainless steel are iron alloys. They have a very high 97% of their average alloy composition in common. There are 27 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 1.3549 stainless steel and the bottom bar is AISI 445 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
160
Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
78
Tensile Strength: Ultimate (UTS), MPa 730
480

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Maximum Temperature: Corrosion, °C 400
480
Maximum Temperature: Mechanical, °C 910
950
Melting Completion (Liquidus), °C 1430
1440
Melting Onset (Solidus), °C 1390
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 21
21
Thermal Expansion, µm/m-K 10
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
2.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 10
12
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 2.6
2.6
Embodied Energy, MJ/kg 37
38
Embodied Water, L/kg 130
130

Common Calculations

PREN (Pitting Resistance) 22
20
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 27
17
Strength to Weight: Bending, points 24
18
Thermal Diffusivity, mm2/s 5.6
5.6
Thermal Shock Resistance, points 26
16

Alloy Composition

Carbon (C), % 0.85 to 1.0
0 to 0.020
Chromium (Cr), % 17 to 19
19 to 21
Copper (Cu), % 0
0.3 to 0.6
Iron (Fe), % 77.5 to 82
74.9 to 80.7
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 0.9 to 1.3
0
Nickel (Ni), % 0
0 to 0.6
Niobium (Nb), % 0
0 to 0.8
Nitrogen (N), % 0
0 to 0.030
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.012
Vanadium (V), % 0.070 to 0.12
0