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EN 1.4713 Stainless Steel vs. SAE-AISI 9255 Steel

Both EN 1.4713 stainless steel and SAE-AISI 9255 steel are iron alloys. Both are furnished in the annealed condition. They have a moderately high 92% 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 1.4713 stainless steel and the bottom bar is SAE-AISI 9255 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
200
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20
21
Fatigue Strength, MPa 160
270
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 74
72
Shear Strength, MPa 320
430
Tensile Strength: Ultimate (UTS), MPa 520
680
Tensile Strength: Yield (Proof), MPa 250
390

Thermal Properties

Latent Heat of Fusion, J/g 270
280
Maximum Temperature: Mechanical, °C 800
400
Melting Completion (Liquidus), °C 1440
1430
Melting Onset (Solidus), °C 1400
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 23
46
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 4.6
2.0
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 1.7
1.5
Embodied Energy, MJ/kg 24
20
Embodied Water, L/kg 84
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 84
120
Resilience: Unit (Modulus of Resilience), kJ/m3 160
400
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 19
24
Strength to Weight: Bending, points 19
22
Thermal Diffusivity, mm2/s 6.2
13
Thermal Shock Resistance, points 18
21

Alloy Composition

Aluminum (Al), % 0.5 to 1.0
0
Carbon (C), % 0 to 0.12
0.51 to 0.59
Chromium (Cr), % 6.0 to 8.0
0
Iron (Fe), % 88.8 to 93
96.2 to 97
Manganese (Mn), % 0 to 1.0
0.7 to 1.0
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0.5 to 1.0
1.8 to 2.2
Sulfur (S), % 0 to 0.015
0 to 0.040