In 1668.

A titanium alloy's tensile strength ranges from 35.000 to 120.000 psi. while pure titanium's tensile strength is approximately 63.000 psi.

Polypropylene (PP) is a versatile thermoplastic polymer known for its excellent chemical resistance, elasticity, and fatigue resistance. It's widely used in packaging, textiles (such as ropes, thermal underwear, and carpets), automotive components (like batteries and bumpers), and consumer goods due to its low cost and easy manufacturability. PP is favored for its ability to be easily customized through copolymerization, resulting in materials ranging from rigid to highly flexible. Additionally, PP's low density makes it a desirable choice for lightweight applications. Its resistance to various chemical solvents, bases, and acids extends its usability across many industries, including medical for manufacturing syringes and containers due to its sterility after autoclaving. Recycling and environmental impact considerations are increasingly important, with efforts to improve PP's recyclability and explore bio-based alternatives.