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EN 1.4443 Stainless Steel vs. EN 1.4537 Stainless Steel

Both EN 1.4443 stainless steel and EN 1.4537 stainless steel are iron alloys. Both are furnished in the solution annealed (AT) condition. They have 76% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is EN 1.4443 stainless steel and the bottom bar is EN 1.4537 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
220
Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 34
42
Fatigue Strength, MPa 170
290
Impact Strength: V-Notched Charpy, J 67
91
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
80
Tensile Strength: Ultimate (UTS), MPa 490
700
Tensile Strength: Yield (Proof), MPa 210
330

Thermal Properties

Latent Heat of Fusion, J/g 300
310
Maximum Temperature: Corrosion, °C 420
450
Maximum Temperature: Mechanical, °C 1000
1100
Melting Completion (Liquidus), °C 1440
1440
Melting Onset (Solidus), °C 1400
1390
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 15
14
Thermal Expansion, µm/m-K 16
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 20
34
Density, g/cm3 7.9
8.1
Embodied Carbon, kg CO2/kg material 4.0
6.1
Embodied Energy, MJ/kg 54
84
Embodied Water, L/kg 160
220

Common Calculations

PREN (Pitting Resistance) 28
46
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
240
Resilience: Unit (Modulus of Resilience), kJ/m3 110
270
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 17
24
Strength to Weight: Bending, points 18
22
Thermal Diffusivity, mm2/s 3.9
3.7
Thermal Shock Resistance, points 11
15

Alloy Composition

Carbon (C), % 0 to 0.050
0 to 0.020
Chromium (Cr), % 18 to 20
24 to 26
Copper (Cu), % 0
1.0 to 2.0
Iron (Fe), % 60.4 to 69.5
36.3 to 46.1
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 2.5 to 3.0
4.7 to 5.7
Nickel (Ni), % 10 to 13
24 to 27
Nitrogen (N), % 0
0.17 to 0.25
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.5
0 to 0.7
Sulfur (S), % 0 to 0.030
0 to 0.010