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EN 1.4612 Stainless Steel vs. AISI 329 Stainless Steel

Both EN 1.4612 stainless steel and AISI 329 stainless steel are iron alloys. They have 85% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is EN 1.4612 stainless steel and the bottom bar is AISI 329 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11
17
Fatigue Strength, MPa 860 to 950
330
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 76
80
Shear Strength, MPa 1010 to 1110
440
Tensile Strength: Ultimate (UTS), MPa 1690 to 1850
710
Tensile Strength: Yield (Proof), MPa 1570 to 1730
540

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Maximum Temperature: Corrosion, °C 450
450
Maximum Temperature: Mechanical, °C 790
1100
Melting Completion (Liquidus), °C 1450
1440
Melting Onset (Solidus), °C 1400
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 11
13

Otherwise Unclassified Properties

Base Metal Price, % relative 16
16
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 3.6
3.1
Embodied Energy, MJ/kg 50
44
Embodied Water, L/kg 140
170

Common Calculations

PREN (Pitting Resistance) 19
30
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190 to 210
110
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 60 to 65
25
Strength to Weight: Bending, points 40 to 43
23
Thermal Shock Resistance, points 58 to 63
19

Alloy Composition

Aluminum (Al), % 1.4 to 1.8
0
Carbon (C), % 0 to 0.015
0 to 0.080
Chromium (Cr), % 11 to 12.5
23 to 28
Iron (Fe), % 71.5 to 75.5
63.1 to 74
Manganese (Mn), % 0 to 0.1
0 to 1.0
Molybdenum (Mo), % 1.8 to 2.3
1.0 to 2.0
Nickel (Ni), % 10.2 to 11.3
2.0 to 5.0
Nitrogen (N), % 0 to 0.010
0
Phosphorus (P), % 0 to 0.010
0 to 0.040
Silicon (Si), % 0 to 0.1
0 to 0.75
Sulfur (S), % 0 to 0.0050
0 to 0.030
Titanium (Ti), % 0.2 to 0.5
0