MakeItFrom.com
Menu (ESC)

EN 1.4021 Stainless Steel vs. SAE-AISI 9254 Steel

Both EN 1.4021 stainless steel and SAE-AISI 9254 steel are iron alloys. They have 88% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.4021 stainless steel and the bottom bar is SAE-AISI 9254 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 17
20
Fatigue Strength, MPa 240 to 380
280
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
72
Shear Strength, MPa 390 to 530
410
Tensile Strength: Ultimate (UTS), MPa 630 to 880
660
Tensile Strength: Yield (Proof), MPa 390 to 670
410

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Maximum Temperature: Mechanical, °C 760
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 30
46
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
2.2
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 1.9
1.5
Embodied Energy, MJ/kg 27
20
Embodied Water, L/kg 100
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 88 to 110
110
Resilience: Unit (Modulus of Resilience), kJ/m3 400 to 1160
450
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 23 to 31
24
Strength to Weight: Bending, points 21 to 26
22
Thermal Diffusivity, mm2/s 8.1
12
Thermal Shock Resistance, points 22 to 31
20

Alloy Composition

Carbon (C), % 0.16 to 0.25
0.51 to 0.59
Chromium (Cr), % 12 to 14
0.6 to 0.8
Iron (Fe), % 83.2 to 87.8
96.1 to 97.1
Manganese (Mn), % 0 to 1.5
0.6 to 0.8
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 1.0
1.2 to 1.6
Sulfur (S), % 0 to 0.015
0 to 0.040