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ASTM A182 Grade FR vs. Grade 31 Titanium

ASTM A182 grade FR belongs to the iron alloys classification, while grade 31 titanium belongs to the titanium alloys. There are 30 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 ASTM A182 grade FR and the bottom bar is grade 31 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 28
20
Fatigue Strength, MPa 270
300
Poisson's Ratio 0.29
0.32
Reduction in Area, % 43
34
Shear Modulus, GPa 72
41
Shear Strength, MPa 320
320
Tensile Strength: Ultimate (UTS), MPa 490
510
Tensile Strength: Yield (Proof), MPa 360
450

Thermal Properties

Latent Heat of Fusion, J/g 250
420
Maximum Temperature: Mechanical, °C 410
320
Melting Completion (Liquidus), °C 1460
1660
Melting Onset (Solidus), °C 1420
1610
Specific Heat Capacity, J/kg-K 470
540
Thermal Conductivity, W/m-K 52
21
Thermal Expansion, µm/m-K 13
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
3.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
6.9

Otherwise Unclassified Properties

Density, g/cm3 7.9
4.5
Embodied Carbon, kg CO2/kg material 1.6
36
Embodied Energy, MJ/kg 21
600
Embodied Water, L/kg 52
230

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
99
Resilience: Unit (Modulus of Resilience), kJ/m3 340
940
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
35
Strength to Weight: Axial, points 17
32
Strength to Weight: Bending, points 17
32
Thermal Diffusivity, mm2/s 14
8.5
Thermal Shock Resistance, points 14
39

Alloy Composition

Carbon (C), % 0 to 0.2
0 to 0.080
Cobalt (Co), % 0
0.2 to 0.8
Copper (Cu), % 0.75 to 1.3
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 95.2 to 97.3
0 to 0.3
Manganese (Mn), % 0.4 to 1.1
0
Nickel (Ni), % 1.6 to 2.2
0
Nitrogen (N), % 0
0 to 0.050
Oxygen (O), % 0
0 to 0.35
Palladium (Pd), % 0
0.040 to 0.080
Phosphorus (P), % 0 to 0.045
0
Sulfur (S), % 0 to 0.050
0
Titanium (Ti), % 0
97.9 to 99.76
Residuals, % 0
0 to 0.4