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EN 1.4659 Stainless Steel vs. EN 1.4903 Stainless Steel

Both EN 1.4659 stainless steel and EN 1.4903 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 1.4659 stainless steel and the bottom bar is EN 1.4903 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 49
20 to 21
Fatigue Strength, MPa 460
320 to 330
Impact Strength: V-Notched Charpy, J 94
42 to 46
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 81
75
Shear Strength, MPa 640
420
Tensile Strength: Ultimate (UTS), MPa 900
670 to 680
Tensile Strength: Yield (Proof), MPa 480
500

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Maximum Temperature: Corrosion, °C 440
380
Maximum Temperature: Mechanical, °C 1100
650
Melting Completion (Liquidus), °C 1480
1460
Melting Onset (Solidus), °C 1430
1420
Specific Heat Capacity, J/kg-K 460
470
Thermal Conductivity, W/m-K 12
26
Thermal Expansion, µm/m-K 16
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
3.4
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
4.0

Otherwise Unclassified Properties

Base Metal Price, % relative 37
7.0
Density, g/cm3 8.2
7.8
Embodied Carbon, kg CO2/kg material 6.5
2.6
Embodied Energy, MJ/kg 89
36
Embodied Water, L/kg 220
88

Common Calculations

PREN (Pitting Resistance) 54
13
Resilience: Ultimate (Unit Rupture Work), MJ/m3 370
120 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 550
650
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 31
24
Strength to Weight: Bending, points 25
22
Thermal Diffusivity, mm2/s 3.2
7.0
Thermal Shock Resistance, points 19
23

Alloy Composition

Aluminum (Al), % 0
0 to 0.040
Carbon (C), % 0 to 0.020
0.080 to 0.12
Chromium (Cr), % 23 to 25
8.0 to 9.5
Copper (Cu), % 1.0 to 2.0
0 to 0.3
Iron (Fe), % 35.7 to 45.7
87.1 to 90.5
Manganese (Mn), % 2.0 to 4.0
0.3 to 0.6
Molybdenum (Mo), % 5.5 to 6.5
0.85 to 1.1
Nickel (Ni), % 21 to 23
0 to 0.4
Niobium (Nb), % 0
0.060 to 0.1
Nitrogen (N), % 0.35 to 0.5
0.030 to 0.070
Phosphorus (P), % 0 to 0.030
0 to 0.025
Silicon (Si), % 0 to 0.7
0 to 0.5
Sulfur (S), % 0 to 0.010
0 to 0.015
Tungsten (W), % 1.5 to 2.5
0
Vanadium (V), % 0
0.18 to 0.25