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EN 1.4903 Stainless Steel vs. EN 1.4662 Stainless Steel

Both EN 1.4903 stainless steel and EN 1.4662 stainless steel are iron alloys. They have 77% of their average alloy composition in common. There are 32 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 1.4662 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 20 to 21
28
Fatigue Strength, MPa 320 to 330
430 to 450
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 75
79
Shear Strength, MPa 420
520 to 540
Tensile Strength: Ultimate (UTS), MPa 670 to 680
810 to 830
Tensile Strength: Yield (Proof), MPa 500
580 to 620

Thermal Properties

Latent Heat of Fusion, J/g 270
290
Maximum Temperature: Corrosion, °C 380
440
Maximum Temperature: Mechanical, °C 650
1090
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1420
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 26
15
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.4
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 4.0
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
16
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 2.6
3.2
Embodied Energy, MJ/kg 36
45
Embodied Water, L/kg 88
170

Common Calculations

PREN (Pitting Resistance) 13
33
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 130
210
Resilience: Unit (Modulus of Resilience), kJ/m3 650
840 to 940
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 24
29 to 30
Strength to Weight: Bending, points 22
25
Thermal Diffusivity, mm2/s 7.0
3.9
Thermal Shock Resistance, points 23
22

Alloy Composition

Aluminum (Al), % 0 to 0.040
0
Carbon (C), % 0.080 to 0.12
0 to 0.030
Chromium (Cr), % 8.0 to 9.5
23 to 25
Copper (Cu), % 0 to 0.3
0.1 to 0.8
Iron (Fe), % 87.1 to 90.5
62.6 to 70.2
Manganese (Mn), % 0.3 to 0.6
2.5 to 4.0
Molybdenum (Mo), % 0.85 to 1.1
1.0 to 2.0
Nickel (Ni), % 0 to 0.4
3.0 to 4.5
Niobium (Nb), % 0.060 to 0.1
0
Nitrogen (N), % 0.030 to 0.070
0.2 to 0.3
Phosphorus (P), % 0 to 0.025
0 to 0.035
Silicon (Si), % 0 to 0.5
0 to 0.7
Sulfur (S), % 0 to 0.015
0 to 0.0050
Vanadium (V), % 0.18 to 0.25
0