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SAE-AISI 9254 Steel vs. AWS ERTi-12

SAE-AISI 9254 steel belongs to the iron alloys classification, while AWS ERTi-12 belongs to the titanium alloys. There are 29 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 9254 steel and the bottom bar is AWS ERTi-12.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 20
12
Fatigue Strength, MPa 280
200
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 72
41
Tensile Strength: Ultimate (UTS), MPa 660
480
Tensile Strength: Yield (Proof), MPa 410
340

Thermal Properties

Latent Heat of Fusion, J/g 270
420
Maximum Temperature: Mechanical, °C 410
320
Melting Completion (Liquidus), °C 1440
1670
Melting Onset (Solidus), °C 1400
1620
Specific Heat Capacity, J/kg-K 480
540
Thermal Conductivity, W/m-K 46
21
Thermal Expansion, µm/m-K 13
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
3.6
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
7.1

Otherwise Unclassified Properties

Base Metal Price, % relative 2.2
37
Density, g/cm3 7.7
4.5
Embodied Carbon, kg CO2/kg material 1.5
31
Embodied Energy, MJ/kg 20
510
Embodied Water, L/kg 49
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
52
Resilience: Unit (Modulus of Resilience), kJ/m3 450
550
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 24
30
Strength to Weight: Bending, points 22
30
Thermal Diffusivity, mm2/s 12
8.7
Thermal Shock Resistance, points 20
37

Alloy Composition

Carbon (C), % 0.51 to 0.59
0 to 0.030
Chromium (Cr), % 0.6 to 0.8
0
Hydrogen (H), % 0
0 to 0.0080
Iron (Fe), % 96.1 to 97.1
0 to 0.15
Manganese (Mn), % 0.6 to 0.8
0
Molybdenum (Mo), % 0
0.2 to 0.4
Nickel (Ni), % 0
0.060 to 0.090
Nitrogen (N), % 0
0 to 0.015
Oxygen (O), % 0
0.080 to 0.16
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 1.2 to 1.6
0
Sulfur (S), % 0 to 0.040
0
Titanium (Ti), % 0
99.147 to 99.66