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EN 1.4615 Stainless Steel vs. EN 1.4537 Stainless Steel

Both EN 1.4615 stainless steel and EN 1.4537 stainless steel are iron alloys. Both are furnished in the solution annealed (AT) condition. They have 65% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4615 stainless steel and the bottom bar is EN 1.4537 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
220
Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 50
42
Fatigue Strength, MPa 190
290
Impact Strength: V-Notched Charpy, J 91
91
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
80
Shear Strength, MPa 360
480
Tensile Strength: Ultimate (UTS), MPa 500
700
Tensile Strength: Yield (Proof), MPa 200
330

Thermal Properties

Latent Heat of Fusion, J/g 280
310
Maximum Temperature: Corrosion, °C 400
450
Maximum Temperature: Mechanical, °C 840
1100
Melting Completion (Liquidus), °C 1400
1440
Melting Onset (Solidus), °C 1360
1390
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
14
Thermal Expansion, µm/m-K 17
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 13
34
Density, g/cm3 7.8
8.1
Embodied Carbon, kg CO2/kg material 2.8
6.1
Embodied Energy, MJ/kg 40
84
Embodied Water, L/kg 140
220

Common Calculations

PREN (Pitting Resistance) 17
46
Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
240
Resilience: Unit (Modulus of Resilience), kJ/m3 99
270
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 18
24
Strength to Weight: Bending, points 18
22
Thermal Diffusivity, mm2/s 4.1
3.7
Thermal Shock Resistance, points 11
15

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.020
Chromium (Cr), % 14 to 16
24 to 26
Copper (Cu), % 2.0 to 4.0
1.0 to 2.0
Iron (Fe), % 63.1 to 72.5
36.3 to 46.1
Manganese (Mn), % 7.0 to 9.0
0 to 2.0
Molybdenum (Mo), % 0 to 0.8
4.7 to 5.7
Nickel (Ni), % 4.5 to 6.0
24 to 27
Nitrogen (N), % 0.020 to 0.060
0.17 to 0.25
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.7
Sulfur (S), % 0 to 0.010
0 to 0.010