MakeItFrom.com
Menu (ESC)

EN 1.4421 Stainless Steel vs. SAE-AISI 9254 Steel

Both EN 1.4421 stainless steel and SAE-AISI 9254 steel are iron alloys. They have 79% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is EN 1.4421 stainless steel and the bottom bar is SAE-AISI 9254 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 11 to 17
20
Fatigue Strength, MPa 380 to 520
280
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
72
Tensile Strength: Ultimate (UTS), MPa 880 to 1100
660
Tensile Strength: Yield (Proof), MPa 620 to 950
410

Thermal Properties

Latent Heat of Fusion, J/g 280
270
Maximum Temperature: Mechanical, °C 870
410
Melting Completion (Liquidus), °C 1440
1440
Melting Onset (Solidus), °C 1400
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 16
46
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 12
2.2
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 2.6
1.5
Embodied Energy, MJ/kg 36
20
Embodied Water, L/kg 130
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 140
110
Resilience: Unit (Modulus of Resilience), kJ/m3 960 to 2270
450
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 31 to 39
24
Strength to Weight: Bending, points 26 to 30
22
Thermal Diffusivity, mm2/s 4.4
12
Thermal Shock Resistance, points 31 to 39
20

Alloy Composition

Carbon (C), % 0 to 0.060
0.51 to 0.59
Chromium (Cr), % 15.5 to 17.5
0.6 to 0.8
Iron (Fe), % 74.4 to 80.5
96.1 to 97.1
Manganese (Mn), % 0 to 1.0
0.6 to 0.8
Molybdenum (Mo), % 0 to 0.7
0
Nickel (Ni), % 4.0 to 5.5
0
Phosphorus (P), % 0 to 0.035
0 to 0.035
Silicon (Si), % 0 to 0.8
1.2 to 1.6
Sulfur (S), % 0 to 0.020
0 to 0.040