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EN 1.4911 Stainless Steel vs. AISI 329 Stainless Steel

Both EN 1.4911 stainless steel and AISI 329 stainless steel are iron alloys. They have 81% 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 1.4911 stainless steel and the bottom bar is AISI 329 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 11
17
Fatigue Strength, MPa 530
330
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 76
80
Shear Strength, MPa 640
440
Tensile Strength: Ultimate (UTS), MPa 1070
710
Tensile Strength: Yield (Proof), MPa 970
540

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Maximum Temperature: Corrosion, °C 430
450
Maximum Temperature: Mechanical, °C 700
1100
Melting Completion (Liquidus), °C 1450
1440
Melting Onset (Solidus), °C 1410
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 20
16
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.7
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 3.0
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 20
16
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 3.4
3.1
Embodied Energy, MJ/kg 49
44
Embodied Water, L/kg 130
170

Common Calculations

PREN (Pitting Resistance) 14
30
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
110
Resilience: Unit (Modulus of Resilience), kJ/m3 2410
730
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 38
25
Strength to Weight: Bending, points 30
23
Thermal Diffusivity, mm2/s 5.4
4.3
Thermal Shock Resistance, points 37
19

Alloy Composition

Boron (B), % 0.0050 to 0.015
0
Carbon (C), % 0.050 to 0.12
0 to 0.080
Chromium (Cr), % 9.8 to 11.2
23 to 28
Cobalt (Co), % 5.0 to 7.0
0
Iron (Fe), % 75.7 to 83.8
63.1 to 74
Manganese (Mn), % 0.3 to 1.3
0 to 1.0
Molybdenum (Mo), % 0.5 to 1.0
1.0 to 2.0
Nickel (Ni), % 0.2 to 1.2
2.0 to 5.0
Niobium (Nb), % 0.2 to 0.5
0
Nitrogen (N), % 0 to 0.035
0
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0.1 to 0.8
0 to 0.75
Sulfur (S), % 0 to 0.015
0 to 0.030
Tungsten (W), % 0 to 0.7
0
Vanadium (V), % 0.1 to 0.4
0