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Grade 7 Titanium vs. S46910 Stainless Steel

Grade 7 titanium belongs to the titanium alloys classification, while S46910 stainless steel belongs to the iron alloys. There are 26 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is grade 7 titanium and the bottom bar is S46910 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
270 to 630
Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 24
2.2 to 11
Fatigue Strength, MPa 250
250 to 1020
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 38
76
Shear Strength, MPa 270
410 to 1410
Tensile Strength: Ultimate (UTS), MPa 420
680 to 2470
Tensile Strength: Yield (Proof), MPa 340
450 to 2290

Thermal Properties

Latent Heat of Fusion, J/g 420
280
Maximum Temperature: Mechanical, °C 320
810
Melting Completion (Liquidus), °C 1660
1460
Melting Onset (Solidus), °C 1610
1420
Specific Heat Capacity, J/kg-K 540
470
Thermal Expansion, µm/m-K 9.2
11

Otherwise Unclassified Properties

Density, g/cm3 4.5
7.9
Embodied Carbon, kg CO2/kg material 47
4.1
Embodied Energy, MJ/kg 800
55
Embodied Water, L/kg 470
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 95
48 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 560
510 to 4780
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 26
24 to 86
Strength to Weight: Bending, points 28
22 to 51
Thermal Shock Resistance, points 31
23 to 84

Alloy Composition

Aluminum (Al), % 0
0.15 to 0.5
Carbon (C), % 0 to 0.080
0 to 0.030
Chromium (Cr), % 0
11 to 13
Copper (Cu), % 0
1.5 to 3.5
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.3
65 to 76
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 0
3.0 to 5.0
Nickel (Ni), % 0
8.0 to 10
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.25
0
Palladium (Pd), % 0.12 to 0.25
0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0 to 0.7
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 98.7 to 99.88
0.5 to 1.2
Residuals, % 0 to 0.4
0