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EN 1.4537 Stainless Steel vs. AISI 444 Stainless Steel

Both EN 1.4537 stainless steel and AISI 444 stainless steel are iron alloys. They have 63% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.4537 stainless steel and the bottom bar is AISI 444 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
190
Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 42
23
Fatigue Strength, MPa 290
210
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 80
78
Shear Strength, MPa 480
300
Tensile Strength: Ultimate (UTS), MPa 700
470
Tensile Strength: Yield (Proof), MPa 330
310

Thermal Properties

Latent Heat of Fusion, J/g 310
290
Maximum Temperature: Corrosion, °C 450
580
Maximum Temperature: Mechanical, °C 1100
930
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1390
1420
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 14
23
Thermal Expansion, µm/m-K 16
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 34
15
Density, g/cm3 8.1
7.7
Embodied Carbon, kg CO2/kg material 6.1
3.4
Embodied Energy, MJ/kg 84
47
Embodied Water, L/kg 220
130

Common Calculations

PREN (Pitting Resistance) 46
26
Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
95
Resilience: Unit (Modulus of Resilience), kJ/m3 270
240
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 24
17
Strength to Weight: Bending, points 22
17
Thermal Diffusivity, mm2/s 3.7
6.2
Thermal Shock Resistance, points 15
16

Alloy Composition

Carbon (C), % 0 to 0.020
0 to 0.025
Chromium (Cr), % 24 to 26
17.5 to 19.5
Copper (Cu), % 1.0 to 2.0
0
Iron (Fe), % 36.3 to 46.1
73.3 to 80.8
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 4.7 to 5.7
1.8 to 2.5
Nickel (Ni), % 24 to 27
0 to 1.0
Niobium (Nb), % 0
0.2 to 0.8
Nitrogen (N), % 0.17 to 0.25
0 to 0.035
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 0.7
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.030
Titanium (Ti), % 0
0.2 to 0.8