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AISI 309HCb Stainless Steel vs. EN 1.4821 Stainless Steel

Both AISI 309HCb stainless steel and EN 1.4821 stainless steel are iron alloys. They have 90% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is AISI 309HCb stainless steel and the bottom bar is EN 1.4821 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
200
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 46
18
Fatigue Strength, MPa 210
280
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 78
79
Shear Strength, MPa 410
450
Tensile Strength: Ultimate (UTS), MPa 590
730
Tensile Strength: Yield (Proof), MPa 230
450

Thermal Properties

Latent Heat of Fusion, J/g 300
310
Maximum Temperature: Corrosion, °C 510
450
Maximum Temperature: Mechanical, °C 1090
1100
Melting Completion (Liquidus), °C 1420
1410
Melting Onset (Solidus), °C 1380
1370
Specific Heat Capacity, J/kg-K 480
490
Thermal Conductivity, W/m-K 15
17
Thermal Expansion, µm/m-K 16
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 23
15
Density, g/cm3 7.8
7.6
Embodied Carbon, kg CO2/kg material 4.1
2.9
Embodied Energy, MJ/kg 59
41
Embodied Water, L/kg 170
160

Common Calculations

PREN (Pitting Resistance) 23
26
Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
110
Resilience: Unit (Modulus of Resilience), kJ/m3 130
500
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
26
Strength to Weight: Axial, points 21
26
Strength to Weight: Bending, points 20
23
Thermal Diffusivity, mm2/s 4.0
4.6
Thermal Shock Resistance, points 13
21

Alloy Composition

Carbon (C), % 0.040 to 0.1
0.1 to 0.2
Chromium (Cr), % 22 to 24
24.5 to 26.5
Iron (Fe), % 56 to 66
64.2 to 71.1
Manganese (Mn), % 0 to 2.0
0 to 2.0
Nickel (Ni), % 12 to 16
3.5 to 5.5
Niobium (Nb), % 0 to 1.1
0
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 0.75
0.8 to 1.5
Sulfur (S), % 0 to 0.030
0 to 0.015