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SAE-AISI 9255 Steel vs. EN 1.4482 Stainless Steel

Both SAE-AISI 9255 steel and EN 1.4482 stainless steel are iron alloys. They have 72% 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 SAE-AISI 9255 steel and the bottom bar is EN 1.4482 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 21
34
Fatigue Strength, MPa 270
420 to 450
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
78
Shear Strength, MPa 430
510 to 530
Tensile Strength: Ultimate (UTS), MPa 680
770 to 800
Tensile Strength: Yield (Proof), MPa 390
530 to 570

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Maximum Temperature: Mechanical, °C 400
980
Melting Completion (Liquidus), °C 1430
1420
Melting Onset (Solidus), °C 1390
1370
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 46
15
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 2.0
12
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 1.5
2.7
Embodied Energy, MJ/kg 20
38
Embodied Water, L/kg 46
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
230 to 250
Resilience: Unit (Modulus of Resilience), kJ/m3 400
690 to 820
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 24
28 to 29
Strength to Weight: Bending, points 22
24 to 25
Thermal Diffusivity, mm2/s 13
4.0
Thermal Shock Resistance, points 21
21 to 22

Alloy Composition

Carbon (C), % 0.51 to 0.59
0 to 0.030
Chromium (Cr), % 0
19.5 to 21.5
Copper (Cu), % 0
0 to 1.0
Iron (Fe), % 96.2 to 97
66.1 to 74.9
Manganese (Mn), % 0.7 to 1.0
4.0 to 6.0
Molybdenum (Mo), % 0
0.1 to 0.6
Nickel (Ni), % 0
1.5 to 3.5
Nitrogen (N), % 0
0.050 to 0.2
Phosphorus (P), % 0 to 0.035
0 to 0.035
Silicon (Si), % 1.8 to 2.2
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.030