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EN 1.4508 Stainless Steel vs. EN 1.4537 Stainless Steel

Both EN 1.4508 stainless steel and EN 1.4537 stainless steel are iron alloys. Both are furnished in the solution annealed (AT) condition. They have 75% 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 1.4508 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, % 34
42
Fatigue Strength, MPa 210
290
Impact Strength: V-Notched Charpy, J 90
91
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 79
80
Tensile Strength: Ultimate (UTS), MPa 570
700
Tensile Strength: Yield (Proof), MPa 260
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 1450
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 12
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 55
84
Embodied Water, L/kg 160
220

Common Calculations

PREN (Pitting Resistance) 32
46
Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
240
Resilience: Unit (Modulus of Resilience), kJ/m3 170
270
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 20
24
Strength to Weight: Bending, points 19
22
Thermal Diffusivity, mm2/s 4.1
3.7
Thermal Shock Resistance, points 17
15

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.020
Chromium (Cr), % 18 to 20
24 to 26
Copper (Cu), % 0
1.0 to 2.0
Iron (Fe), % 61.2 to 69.9
36.3 to 46.1
Manganese (Mn), % 0 to 1.5
0 to 2.0
Molybdenum (Mo), % 3.0 to 3.5
4.7 to 5.7
Nickel (Ni), % 9.0 to 12
24 to 27
Nitrogen (N), % 0.1 to 0.2
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