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EN 1.4512 Stainless Steel vs. EN 1.4821 Stainless Steel

Both EN 1.4512 stainless steel and EN 1.4821 stainless steel are iron alloys. They have 80% of their average alloy composition in common. There are 32 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 EN 1.4512 stainless steel and the bottom bar is EN 1.4821 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 28
18
Fatigue Strength, MPa 180
280
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 76
79
Shear Strength, MPa 310
450
Tensile Strength: Ultimate (UTS), MPa 470
730
Tensile Strength: Yield (Proof), MPa 240
450

Thermal Properties

Latent Heat of Fusion, J/g 270
310
Maximum Temperature: Corrosion, °C 440
450
Maximum Temperature: Mechanical, °C 720
1100
Melting Completion (Liquidus), °C 1450
1410
Melting Onset (Solidus), °C 1400
1370
Specific Heat Capacity, J/kg-K 480
490
Thermal Conductivity, W/m-K 25
17
Thermal Expansion, µm/m-K 11
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
15
Density, g/cm3 7.7
7.6
Embodied Carbon, kg CO2/kg material 2.0
2.9
Embodied Energy, MJ/kg 27
41
Embodied Water, L/kg 95
160

Common Calculations

PREN (Pitting Resistance) 12
26
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
110
Resilience: Unit (Modulus of Resilience), kJ/m3 150
500
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
26
Strength to Weight: Axial, points 17
26
Strength to Weight: Bending, points 17
23
Thermal Diffusivity, mm2/s 6.7
4.6
Thermal Shock Resistance, points 17
21

Alloy Composition

Carbon (C), % 0 to 0.030
0.1 to 0.2
Chromium (Cr), % 10.5 to 12.5
24.5 to 26.5
Iron (Fe), % 84.8 to 89.5
64.2 to 71.1
Manganese (Mn), % 0 to 1.0
0 to 2.0
Nickel (Ni), % 0
3.5 to 5.5
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0.8 to 1.5
Sulfur (S), % 0 to 0.015
0 to 0.015
Titanium (Ti), % 0 to 0.65
0