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AISI 321H Stainless Steel vs. EN 1.6511 Steel

Both AISI 321H stainless steel and EN 1.6511 steel are iron alloys. They have 73% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is AISI 321H stainless steel and the bottom bar is EN 1.6511 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
300
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 40
12
Fatigue Strength, MPa 200
480
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Shear Strength, MPa 400
600
Tensile Strength: Ultimate (UTS), MPa 580
990
Tensile Strength: Yield (Proof), MPa 230
770

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 940
430
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1380
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
36
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 16
3.1
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.2
1.6
Embodied Energy, MJ/kg 46
21
Embodied Water, L/kg 140
53

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
110
Resilience: Unit (Modulus of Resilience), kJ/m3 140
1590
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21
35
Strength to Weight: Bending, points 20
28
Thermal Diffusivity, mm2/s 4.0
9.9
Thermal Shock Resistance, points 12
29

Alloy Composition

Carbon (C), % 0.040 to 0.1
0.32 to 0.4
Chromium (Cr), % 17 to 19
0.9 to 1.2
Iron (Fe), % 65.4 to 74
95.6 to 97.2
Manganese (Mn), % 0 to 2.0
0.5 to 0.8
Molybdenum (Mo), % 0
0.15 to 0.3
Nickel (Ni), % 9.0 to 12
0.9 to 1.2
Phosphorus (P), % 0 to 0.045
0 to 0.035
Silicon (Si), % 0 to 0.75
0 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.035
Titanium (Ti), % 0 to 0.7
0