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EN 1.4821 Stainless Steel vs. SAE-AISI 94B30 Steel

Both EN 1.4821 stainless steel and SAE-AISI 94B30 steel are iron alloys. They have 70% of their average alloy composition in common. There are 31 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 1.4821 stainless steel and the bottom bar is SAE-AISI 94B30 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
150
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 18
25
Fatigue Strength, MPa 280
220
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 79
73
Shear Strength, MPa 450
320
Tensile Strength: Ultimate (UTS), MPa 730
500
Tensile Strength: Yield (Proof), MPa 450
300

Thermal Properties

Latent Heat of Fusion, J/g 310
250
Maximum Temperature: Mechanical, °C 1100
410
Melting Completion (Liquidus), °C 1410
1460
Melting Onset (Solidus), °C 1370
1420
Specific Heat Capacity, J/kg-K 490
470
Thermal Conductivity, W/m-K 17
39
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 15
2.4
Density, g/cm3 7.6
7.8
Embodied Carbon, kg CO2/kg material 2.9
1.5
Embodied Energy, MJ/kg 41
20
Embodied Water, L/kg 160
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
110
Resilience: Unit (Modulus of Resilience), kJ/m3 500
250
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 26
24
Strength to Weight: Axial, points 26
18
Strength to Weight: Bending, points 23
18
Thermal Diffusivity, mm2/s 4.6
10
Thermal Shock Resistance, points 21
15

Alloy Composition

Boron (B), % 0
0.00050 to 0.0030
Carbon (C), % 0.1 to 0.2
0.28 to 0.33
Chromium (Cr), % 24.5 to 26.5
0.3 to 0.5
Iron (Fe), % 64.2 to 71.1
97 to 98.1
Manganese (Mn), % 0 to 2.0
0.75 to 1.0
Molybdenum (Mo), % 0
0.080 to 0.15
Nickel (Ni), % 3.5 to 5.5
0.3 to 0.6
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0.8 to 1.5
0.15 to 0.35
Sulfur (S), % 0 to 0.015
0 to 0.040