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EN 1.4477 Stainless Steel vs. AISI 329 Stainless Steel

Both EN 1.4477 stainless steel and AISI 329 stainless steel are iron alloys. They have a moderately high 91% of their average alloy composition in common. There are 33 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 1.4477 stainless steel and the bottom bar is AISI 329 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 270
240
Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 22 to 23
17
Fatigue Strength, MPa 420 to 490
330
Poisson's Ratio 0.27
0.27
Shear Modulus, GPa 81
80
Shear Strength, MPa 550 to 580
440
Tensile Strength: Ultimate (UTS), MPa 880 to 930
710
Tensile Strength: Yield (Proof), MPa 620 to 730
540

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Corrosion, °C 460
450
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1430
1440
Melting Onset (Solidus), °C 1380
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 13
16
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 20
16
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 3.7
3.1
Embodied Energy, MJ/kg 52
44
Embodied Water, L/kg 190
170

Common Calculations

PREN (Pitting Resistance) 41
30
Resilience: Ultimate (Unit Rupture Work), MJ/m3 180 to 190
110
Resilience: Unit (Modulus of Resilience), kJ/m3 940 to 1290
730
Stiffness to Weight: Axial, points 15
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 31 to 33
25
Strength to Weight: Bending, points 26 to 27
23
Thermal Diffusivity, mm2/s 3.5
4.3
Thermal Shock Resistance, points 23 to 25
19

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.080
Chromium (Cr), % 28 to 30
23 to 28
Copper (Cu), % 0 to 0.8
0
Iron (Fe), % 56.6 to 63.6
63.1 to 74
Manganese (Mn), % 0.8 to 1.5
0 to 1.0
Molybdenum (Mo), % 1.5 to 2.6
1.0 to 2.0
Nickel (Ni), % 5.8 to 7.5
2.0 to 5.0
Nitrogen (N), % 0.3 to 0.4
0
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 0.75
Sulfur (S), % 0 to 0.015
0 to 0.030