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SAE-AISI 8642 Steel vs. EN 1.4713 Stainless Steel

Both SAE-AISI 8642 steel and EN 1.4713 stainless 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 SAE-AISI 8642 steel and the bottom bar is EN 1.4713 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
170
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 23
20
Fatigue Strength, MPa 270
160
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
74
Shear Strength, MPa 370
320
Tensile Strength: Ultimate (UTS), MPa 580
520
Tensile Strength: Yield (Proof), MPa 380
250

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Maximum Temperature: Mechanical, °C 410
800
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 39
23
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 2.6
4.6
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.5
1.7
Embodied Energy, MJ/kg 20
24
Embodied Water, L/kg 50
84

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
84
Resilience: Unit (Modulus of Resilience), kJ/m3 390
160
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 20
19
Strength to Weight: Bending, points 20
19
Thermal Diffusivity, mm2/s 10
6.2
Thermal Shock Resistance, points 17
18

Alloy Composition

Aluminum (Al), % 0
0.5 to 1.0
Carbon (C), % 0.4 to 0.45
0 to 0.12
Chromium (Cr), % 0.4 to 0.6
6.0 to 8.0
Iron (Fe), % 96.6 to 97.8
88.8 to 93
Manganese (Mn), % 0.75 to 1.0
0 to 1.0
Molybdenum (Mo), % 0.15 to 0.25
0
Nickel (Ni), % 0.4 to 0.7
0
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0.15 to 0.35
0.5 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.015