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R58150 Titanium vs. ASTM A232 Spring Steel

R58150 titanium belongs to the titanium alloys classification, while ASTM A232 spring steel belongs to the iron alloys. There are 26 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is R58150 titanium and the bottom bar is ASTM A232 spring steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 140
190
Elongation at Break, % 13
14
Fatigue Strength, MPa 330
1040
Poisson's Ratio 0.32
0.29
Reduction in Area, % 68
46
Shear Modulus, GPa 52
73
Shear Strength, MPa 470
1090
Tensile Strength: Ultimate (UTS), MPa 770
1790
Tensile Strength: Yield (Proof), MPa 550
1610

Thermal Properties

Latent Heat of Fusion, J/g 410
250
Maximum Temperature: Mechanical, °C 320
420
Melting Completion (Liquidus), °C 1760
1460
Melting Onset (Solidus), °C 1700
1410
Specific Heat Capacity, J/kg-K 500
470
Thermal Expansion, µm/m-K 8.4
13

Otherwise Unclassified Properties

Base Metal Price, % relative 48
2.3
Density, g/cm3 5.4
7.8
Embodied Carbon, kg CO2/kg material 31
2.0
Embodied Energy, MJ/kg 480
28
Embodied Water, L/kg 150
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 94
250
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 32
24
Strength to Weight: Axial, points 40
64
Strength to Weight: Bending, points 35
42
Thermal Shock Resistance, points 48
53

Alloy Composition

Carbon (C), % 0 to 0.1
0.48 to 0.53
Chromium (Cr), % 0
0.8 to 1.1
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.1
96.8 to 97.7
Manganese (Mn), % 0
0.7 to 0.9
Molybdenum (Mo), % 14 to 16
0
Nitrogen (N), % 0 to 0.050
0
Oxygen (O), % 0 to 0.2
0
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0
0.15 to 0.35
Sulfur (S), % 0
0 to 0.035
Titanium (Ti), % 83.5 to 86
0
Vanadium (V), % 0
0.15 to 0.3