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EN 1.4325 Stainless Steel vs. EN 1.4911 Stainless Steel

Both EN 1.4325 stainless steel and EN 1.4911 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 1.4325 stainless steel and the bottom bar is EN 1.4911 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 45
11
Fatigue Strength, MPa 190
530
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
76
Shear Strength, MPa 450
640
Tensile Strength: Ultimate (UTS), MPa 650
1070
Tensile Strength: Yield (Proof), MPa 210
970

Thermal Properties

Latent Heat of Fusion, J/g 290
270
Maximum Temperature: Corrosion, °C 410
430
Maximum Temperature: Mechanical, °C 930
700
Melting Completion (Liquidus), °C 1430
1450
Melting Onset (Solidus), °C 1380
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 16
20
Thermal Expansion, µm/m-K 16
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
2.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 15
20
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 3.0
3.4
Embodied Energy, MJ/kg 42
49
Embodied Water, L/kg 140
130

Common Calculations

PREN (Pitting Resistance) 18
14
Resilience: Ultimate (Unit Rupture Work), MJ/m3 230
120
Resilience: Unit (Modulus of Resilience), kJ/m3 110
2410
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 23
38
Strength to Weight: Bending, points 21
30
Thermal Diffusivity, mm2/s 4.3
5.4
Thermal Shock Resistance, points 15
37

Alloy Composition

Boron (B), % 0
0.0050 to 0.015
Carbon (C), % 0.030 to 0.15
0.050 to 0.12
Chromium (Cr), % 17 to 19
9.8 to 11.2
Cobalt (Co), % 0
5.0 to 7.0
Iron (Fe), % 67.8 to 75
75.7 to 83.8
Manganese (Mn), % 0 to 2.0
0.3 to 1.3
Molybdenum (Mo), % 0
0.5 to 1.0
Nickel (Ni), % 8.0 to 10
0.2 to 1.2
Niobium (Nb), % 0
0.2 to 0.5
Nitrogen (N), % 0
0 to 0.035
Phosphorus (P), % 0 to 0.045
0 to 0.025
Silicon (Si), % 0 to 1.0
0.1 to 0.8
Sulfur (S), % 0 to 0.030
0 to 0.015
Tungsten (W), % 0
0 to 0.7
Vanadium (V), % 0
0.1 to 0.4