MakeItFrom.com
Menu (ESC)

EN 1.4423 Stainless Steel vs. EN 1.4903 Stainless Steel

Both EN 1.4423 stainless steel and EN 1.4903 stainless steel are iron alloys. They have 88% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4423 stainless steel and the bottom bar is EN 1.4903 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 17
20 to 21
Fatigue Strength, MPa 380
320 to 330
Impact Strength: V-Notched Charpy, J 110
42 to 46
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
75
Shear Strength, MPa 520
420
Tensile Strength: Ultimate (UTS), MPa 850
670 to 680
Tensile Strength: Yield (Proof), MPa 630
500

Thermal Properties

Latent Heat of Fusion, J/g 280
270
Maximum Temperature: Corrosion, °C 390
380
Maximum Temperature: Mechanical, °C 780
650
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 16
26
Thermal Expansion, µm/m-K 9.9
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
3.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
4.0

Otherwise Unclassified Properties

Base Metal Price, % relative 14
7.0
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 3.2
2.6
Embodied Energy, MJ/kg 43
36
Embodied Water, L/kg 120
88

Common Calculations

PREN (Pitting Resistance) 21
13
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
120 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 1000
650
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 30
24
Strength to Weight: Bending, points 25
22
Thermal Diffusivity, mm2/s 4.3
7.0
Thermal Shock Resistance, points 31
23

Alloy Composition

Aluminum (Al), % 0
0 to 0.040
Carbon (C), % 0 to 0.020
0.080 to 0.12
Chromium (Cr), % 11 to 13
8.0 to 9.5
Copper (Cu), % 0.2 to 0.8
0 to 0.3
Iron (Fe), % 73.8 to 80.5
87.1 to 90.5
Manganese (Mn), % 0 to 2.0
0.3 to 0.6
Molybdenum (Mo), % 2.3 to 2.8
0.85 to 1.1
Nickel (Ni), % 6.0 to 7.0
0 to 0.4
Niobium (Nb), % 0
0.060 to 0.1
Nitrogen (N), % 0 to 0.020
0.030 to 0.070
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 0.5
0 to 0.5
Sulfur (S), % 0 to 0.0030
0 to 0.015
Vanadium (V), % 0
0.18 to 0.25