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EN 1.4347 Stainless Steel vs. EN 1.4537 Stainless Steel

Both EN 1.4347 stainless steel and EN 1.4537 stainless steel are iron alloys. Both are furnished in the solution annealed (AT) condition. They have 74% of their average alloy composition in common. There are 32 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 1.4347 stainless steel and the bottom bar is EN 1.4537 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 23
42
Fatigue Strength, MPa 320
290
Impact Strength: V-Notched Charpy, J 34
91
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 79
80
Tensile Strength: Ultimate (UTS), MPa 660
700
Tensile Strength: Yield (Proof), MPa 480
330

Thermal Properties

Latent Heat of Fusion, J/g 300
310
Maximum Temperature: Corrosion, °C 450
450
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1410
1440
Melting Onset (Solidus), °C 1370
1390
Specific Heat Capacity, J/kg-K 490
470
Thermal Conductivity, W/m-K 15
14
Thermal Expansion, µm/m-K 13
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 16
34
Density, g/cm3 7.7
8.1
Embodied Carbon, kg CO2/kg material 3.1
6.1
Embodied Energy, MJ/kg 44
84
Embodied Water, L/kg 170
220

Common Calculations

PREN (Pitting Resistance) 28
46
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
240
Resilience: Unit (Modulus of Resilience), kJ/m3 570
270
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 24
24
Strength to Weight: Bending, points 22
22
Thermal Diffusivity, mm2/s 4.0
3.7
Thermal Shock Resistance, points 19
15

Alloy Composition

Carbon (C), % 0 to 0.050
0 to 0.020
Chromium (Cr), % 25 to 27
24 to 26
Copper (Cu), % 0
1.0 to 2.0
Iron (Fe), % 62.2 to 69.4
36.3 to 46.1
Manganese (Mn), % 0 to 1.5
0 to 2.0
Molybdenum (Mo), % 0
4.7 to 5.7
Nickel (Ni), % 5.5 to 7.5
24 to 27
Nitrogen (N), % 0.1 to 0.2
0.17 to 0.25
Phosphorus (P), % 0 to 0.035
0 to 0.030
Silicon (Si), % 0 to 1.5
0 to 0.7
Sulfur (S), % 0 to 0.020
0 to 0.010