<1> Differences in physical properties
When titanium alloy is still titanium, titanium metal has the characteristics of low density, high mechanical strength and easy processing. However, with the addition of magazines, especially the addition of interstitial impurities, titanium metal greatly improves the strength of titanium and significantly reduces its plasticity.

Titanium is light, and after forming a titanium alloy, its weight is almost half of that of steel of the same volume. Although titanium is slightly heavier than aluminum, its yield strength is twice that of aluminum. The strength of titanium is higher than that of aluminum and steel, and the specific modulus is very close to that of aluminum and steel. In aerospace and deep sea exploration, a large amount of titanium and titanium alloys are used to replace steel. Titanium is known as space metal and cosmic metal, and it deserves its name.

Although the corrosion resistance of stainless steel is not as good as that of titanium alloy, stainless steel still has very good corrosion resistance, and stainless steel has strong formability, compatibility, and strong toughness in a wide temperature range. Therefore, it has been widely used in heavy industry, light industry, daily necessities industry and building decoration industries.

<2> Differences in chemical properties
After the addition of interstitial impurities, elemental titanium can form a very stable oxide with strong corrosion resistance on the surface. After forming a titanium alloy with other metals, it will become very stable and have very high strength.

And stainless steel, the most basic material is iron, iron is not very active relatively, and it does not have very strong corrosion resistance in terms of its own oxides. enhancement.

<3> Differences in application fields
The application fields of titanium alloys are more widely used in aerospace, marine exploration and other fields, and because titanium metal itself has “biophilic” properties, in the human body, it can resist the corrosion of secretions and is non-toxic, and is resistant to any sterilization method. adapt. Therefore, it is widely used in the manufacture of medical devices, artificial hip joints, knee joints, shoulder joints, flank joints, skulls, active heart valves, and bone fixation clips. When new muscle fibrous rings are wrapped around these “titanium bones”, these titanium bones begin to maintain the normal activities of the human body.

<4>The difference in price
Due to the difficult chemical properties of titanium metal, the cost of preparing titanium metal is very high. In addition, titanium alloy has low density and high strength, which makes titanium alloy replace stainless steel in many high-end industries. However, because of these excellent characteristics, titanium alloy makes The price is very high.
Stainless steel is an iron-carbon alloy, and iron is simple because of its simple preparation conditions and low preparation cost. Yes, in some relatively low-end fields, the use of stainless steel is a very common thing.