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EN 1.4923 Stainless Steel vs. SAE-AISI 9255 Steel

Both EN 1.4923 stainless steel and SAE-AISI 9255 steel are iron alloys. They have 86% of their average alloy composition in common. There are 30 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 1.4923 stainless steel and the bottom bar is SAE-AISI 9255 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 12 to 21
21
Fatigue Strength, MPa 300 to 440
270
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
72
Shear Strength, MPa 540 to 590
430
Tensile Strength: Ultimate (UTS), MPa 870 to 980
680
Tensile Strength: Yield (Proof), MPa 470 to 780
390

Thermal Properties

Latent Heat of Fusion, J/g 270
280
Maximum Temperature: Mechanical, °C 740
400
Melting Completion (Liquidus), °C 1450
1430
Melting Onset (Solidus), °C 1410
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 24
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 8.0
2.0
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 2.9
1.5
Embodied Energy, MJ/kg 41
20
Embodied Water, L/kg 100
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 150
120
Resilience: Unit (Modulus of Resilience), kJ/m3 570 to 1580
400
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 31 to 35
24
Strength to Weight: Bending, points 26 to 28
22
Thermal Diffusivity, mm2/s 6.5
13
Thermal Shock Resistance, points 30 to 34
21

Alloy Composition

Carbon (C), % 0.18 to 0.24
0.51 to 0.59
Chromium (Cr), % 11 to 12.5
0
Iron (Fe), % 83.5 to 87.1
96.2 to 97
Manganese (Mn), % 0.4 to 0.9
0.7 to 1.0
Molybdenum (Mo), % 0.8 to 1.2
0
Nickel (Ni), % 0.3 to 0.8
0
Phosphorus (P), % 0 to 0.025
0 to 0.035
Silicon (Si), % 0 to 0.5
1.8 to 2.2
Sulfur (S), % 0 to 0.015
0 to 0.040
Vanadium (V), % 0.25 to 0.35
0