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EN 1.4749 Stainless Steel vs. EN 1.4423 Stainless Steel

Both EN 1.4749 stainless steel and EN 1.4423 stainless steel are iron alloys. They have 84% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.4749 stainless steel and the bottom bar is EN 1.4423 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 16
17
Fatigue Strength, MPa 190
380
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 80
77
Shear Strength, MPa 370
520
Tensile Strength: Ultimate (UTS), MPa 600
850
Tensile Strength: Yield (Proof), MPa 320
630

Thermal Properties

Latent Heat of Fusion, J/g 300
280
Maximum Temperature: Corrosion, °C 450
390
Maximum Temperature: Mechanical, °C 1100
780
Melting Completion (Liquidus), °C 1420
1460
Melting Onset (Solidus), °C 1380
1420
Specific Heat Capacity, J/kg-K 490
470
Thermal Conductivity, W/m-K 17
16
Thermal Expansion, µm/m-K 9.6
9.9

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 13
14
Density, g/cm3 7.6
7.9
Embodied Carbon, kg CO2/kg material 2.5
3.2
Embodied Energy, MJ/kg 36
43
Embodied Water, L/kg 160
120

Common Calculations

PREN (Pitting Resistance) 31
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
130
Resilience: Unit (Modulus of Resilience), kJ/m3 250
1000
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 26
25
Strength to Weight: Axial, points 22
30
Strength to Weight: Bending, points 21
25
Thermal Diffusivity, mm2/s 4.6
4.3
Thermal Shock Resistance, points 22
31

Alloy Composition

Carbon (C), % 0.15 to 0.2
0 to 0.020
Chromium (Cr), % 26 to 29
11 to 13
Copper (Cu), % 0
0.2 to 0.8
Iron (Fe), % 68.5 to 73.7
73.8 to 80.5
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 0
2.3 to 2.8
Nickel (Ni), % 0
6.0 to 7.0
Nitrogen (N), % 0.15 to 0.25
0 to 0.020
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.0030