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EN 1.4537 Stainless Steel vs. EN 1.4597 Stainless Steel

Both EN 1.4537 stainless steel and EN 1.4597 stainless steel are iron alloys. Both are furnished in the solution annealed (AT) condition. They have 63% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4537 stainless steel and the bottom bar is EN 1.4597 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
210
Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 42
45
Fatigue Strength, MPa 290
300
Impact Strength: V-Notched Charpy, J 91
90
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 80
76
Shear Strength, MPa 480
470
Tensile Strength: Ultimate (UTS), MPa 700
680
Tensile Strength: Yield (Proof), MPa 330
330

Thermal Properties

Latent Heat of Fusion, J/g 310
290
Maximum Temperature: Corrosion, °C 450
410
Maximum Temperature: Mechanical, °C 1100
860
Melting Completion (Liquidus), °C 1440
1400
Melting Onset (Solidus), °C 1390
1350
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 14
15
Thermal Expansion, µm/m-K 16
17

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 34
11
Density, g/cm3 8.1
7.7
Embodied Carbon, kg CO2/kg material 6.1
2.5
Embodied Energy, MJ/kg 84
36
Embodied Water, L/kg 220
140

Common Calculations

PREN (Pitting Resistance) 46
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
250
Resilience: Unit (Modulus of Resilience), kJ/m3 270
280
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 24
25
Strength to Weight: Bending, points 22
22
Thermal Diffusivity, mm2/s 3.7
4.1
Thermal Shock Resistance, points 15
15

Alloy Composition

Carbon (C), % 0 to 0.020
0 to 0.1
Chromium (Cr), % 24 to 26
15 to 18
Copper (Cu), % 1.0 to 2.0
2.0 to 3.5
Iron (Fe), % 36.3 to 46.1
63 to 76.4
Manganese (Mn), % 0 to 2.0
6.5 to 9.0
Molybdenum (Mo), % 4.7 to 5.7
0 to 1.0
Nickel (Ni), % 24 to 27
0 to 3.0
Nitrogen (N), % 0.17 to 0.25
0.1 to 0.3
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 0.7
0 to 2.0
Sulfur (S), % 0 to 0.010
0 to 0.030