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EN 1.4903 Stainless Steel vs. EN 1.4537 Stainless Steel

Both EN 1.4903 stainless steel and EN 1.4537 stainless steel are iron alloys. They have 52% 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 1.4903 stainless steel and the bottom bar is EN 1.4537 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 20 to 21
42
Fatigue Strength, MPa 320 to 330
290
Impact Strength: V-Notched Charpy, J 42 to 46
91
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
80
Shear Strength, MPa 420
480
Tensile Strength: Ultimate (UTS), MPa 670 to 680
700
Tensile Strength: Yield (Proof), MPa 500
330

Thermal Properties

Latent Heat of Fusion, J/g 270
310
Maximum Temperature: Corrosion, °C 380
450
Maximum Temperature: Mechanical, °C 650
1100
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1390
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 26
14
Thermal Expansion, µm/m-K 11
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.4
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 4.0
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
34
Density, g/cm3 7.8
8.1
Embodied Carbon, kg CO2/kg material 2.6
6.1
Embodied Energy, MJ/kg 36
84
Embodied Water, L/kg 88
220

Common Calculations

PREN (Pitting Resistance) 13
46
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 130
240
Resilience: Unit (Modulus of Resilience), kJ/m3 650
270
Stiffness to Weight: Axial, points 14
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 7.0
3.7
Thermal Shock Resistance, points 23
15

Alloy Composition

Aluminum (Al), % 0 to 0.040
0
Carbon (C), % 0.080 to 0.12
0 to 0.020
Chromium (Cr), % 8.0 to 9.5
24 to 26
Copper (Cu), % 0 to 0.3
1.0 to 2.0
Iron (Fe), % 87.1 to 90.5
36.3 to 46.1
Manganese (Mn), % 0.3 to 0.6
0 to 2.0
Molybdenum (Mo), % 0.85 to 1.1
4.7 to 5.7
Nickel (Ni), % 0 to 0.4
24 to 27
Niobium (Nb), % 0.060 to 0.1
0
Nitrogen (N), % 0.030 to 0.070
0.17 to 0.25
Phosphorus (P), % 0 to 0.025
0 to 0.030
Silicon (Si), % 0 to 0.5
0 to 0.7
Sulfur (S), % 0 to 0.015
0 to 0.010
Vanadium (V), % 0.18 to 0.25
0