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SAE-AISI 8740 Steel vs. K93600 Alloy

Both SAE-AISI 8740 steel and K93600 alloy are iron alloys. There are 21 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 8740 steel and the bottom bar is K93600 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
140
Elongation at Break, % 11 to 23
5.0 to 35
Shear Strength, MPa 370 to 400
320 to 380
Tensile Strength: Ultimate (UTS), MPa 580 to 670
480 to 810
Tensile Strength: Yield (Proof), MPa 380 to 570
280 to 750

Thermal Properties

Maximum Temperature: Mechanical, °C 410
440
Melting Onset (Solidus), °C 1420
1430
Specific Heat Capacity, J/kg-K 470
520
Thermal Conductivity, W/m-K 39
13
Thermal Expansion, µm/m-K 13
7.3

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
2.4

Otherwise Unclassified Properties

Density, g/cm3 7.8
8.1

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 71 to 120
21 to 280
Resilience: Unit (Modulus of Resilience), kJ/m3 390 to 850
280 to 2050
Stiffness to Weight: Axial, points 13
9.4
Stiffness to Weight: Bending, points 24
21
Strength to Weight: Axial, points 20 to 24
16 to 28
Strength to Weight: Bending, points 20 to 22
17 to 24
Thermal Diffusivity, mm2/s 10
3.1
Thermal Shock Resistance, points 17 to 20
34 to 57

Comparable Variants