HB400 in turn
350
340
Question 2: Titanium steel, 304 stainless steel, 440 stainless steel, which hardness is better? 304 stainless steel can not be quenched and tempered, but can only be treated by solid solution, mainly to improve toughness, but not hardness. The hardness of stainless steel can be improved by work hardening, but this improvement is limited and unstable. After general processing, the hardness range is HRB90-HRC32. 440 is martensitic stainless steel, which can be modulated. The hardness after treatment can reach above HRC50. I am not familiar with titanium steel. It is said that 3 16L stainless steel is called titanium steel. Compared with 304 series, 3 16L has higher nickel content and added molybdenum, so it has better corrosion resistance, but similar mechanical properties. So the hardness of 440 series will be better.
Question 3: which is harder, titanium steel or 440c steel? Titanium steel and 440c steel are harder than 440c.
Titanium steel:
Steel containing a certain amount of titanium. Titanium has strong affinity with carbon, nitrogen and oxygen. Titanium mainly exists in the form of carbide in steel, which is a good deoxidizing and degassing agent and an effective element for fixing carbon and nitrogen.
Titanium can refine the structure and grain of steel, and increase the grain coarsening temperature to above 1000℃. Because the affinity of titanium with carbon is greater than that of chromium with carbon, it is used to eliminate intergranular corrosion of stainless steel. Titanium is a strong ferrite forming element, which strongly increases A 1 and A3. Solid solution titanium can improve hardenability and strengthen ferrite.
When titanium >: 0.025% is considered as an alloying element, the content of titanium in steel is very low.
440c steel:
Among all stainless steels and heat-resistant steels, 440c steel has the highest hardness. Used for nozzles and bearings. 440c steel is used in automatic lathes. Martensite stainless steel, like ordinary alloy steel, has the characteristics of quenching and hardening, so a wide range of different mechanical properties can be obtained by selecting grades and heat treatment conditions. The carbon content of 440c steel is C- 1.2%. This steel has good rust-proof performance and is a high-quality stainless steel used in the high-grade batch tool market. Its strength and sharpness are better than ATS-34, and the chromium content is as high as 16- 18%. It is the second most commonly used stainless steel (after ATS-34) and the most common one.
High hardness and good wear resistance. When grinding, its disadvantages are relatively high viscosity and rapid temperature rise, but it is easier to grind than any carbon steel, and it is much easier to cut materials with a hand saw. The annealing temperature of 440C is very low, the hardness usually reaches HRC56-58, and the corrosion resistance and toughness are very strong. Now it is more widely used in manual knives and high-quality factory knives.
Question 4: Which is harder, titanium steel or 45 steel? Titanium steel has higher hardness.
Question 5: What is the hardness of titanium steel? HRc titanium steel is the hardest, followed by HB400 350 340.
Question 6: What is the hardness of titanium steel? HRc titanium steel is the hardest, followed by HB400 350 340.
Question 7:304 Which is harder, stainless steel or titanium steel? The composition of 304 stainless steel is different from that of titanium steel, which is softer and more sticky during processing. Stainless steel with high chromium content is generally hard.
Question 8: How about a titanium steel necklace? Titanium steel is a new type of stainless steel, and wearing titanium steel jewelry will not cause allergies. Titanium steel is cheaper than traditional precious metals such as gold and silver, and a little higher than zinc alloy jewelry. The wearing period of titanium steel jewelry is also shorter than that of precious metal and twice as long as that of zinc alloy. Generally speaking, titanium steel jewelry is more suitable for middle and low-grade people to wear.
Titanium steel, also known as 3 16L fine steel and 3 16L stainless steel, is famous for its indifferent texture and eternal light. Widely used, characterized by acid resistance, alkali resistance, no discoloration, no allergy, hardness, no deformation and brightness. Mostly used in medicine, luxury goods, expensive watches, pens and industry.
In order to attract people, it is called titanium steel, and some even called titanium alloy jewelry, which is actually stainless steel jewelry without titanium.
In fact, 3 16L is the code name of stainless steel, which is obtained by continuously reducing the carbon content on the basis of 3 16 stainless steel. Compared with ordinary stainless steel, it is more expensive, has strong corrosion resistance and is suitable for skin contact. Its main components are iron, chromium, nickel and molybdenum, and its components are not titanium at all.
But it will hardly deform and change color for a long time. Among the common stainless steels, 3 16L steel, known as "titanium steel", is the most suitable for jewelry.
No matter how time passes, titanium steel still exists with its unique indifference, which will never change. Silver will change color because of oxidation, and gold is no longer the favorite of modern people. In this era, white metal monopolizes the pulse of fashion. The alloy will change color, because only a shallow bright color is coated on the surface, and the bright color will fall off with time, leaving a broken appearance, while titanium steel still maintains its original color and brightness. No matter how to wear it, it still exudes cold white light and insists on its eternal persistence.
Titanium steel jewelry has gradually become popular in recent years. It has high corrosion resistance, high temperature resistance and hardness, and its surface will not change due to the environment. It can keep luster and smoothness after long-term wear. At the same time, the metallic luster of titanium steel is very close to that of platinum, which is noble, elegant and modern. The maintenance and cleaning of titanium steel jewelry is also very easy, and it is not in a strong acid and alkali environment and does not need special maintenance at all. Simple and casual. Jewelry made of titanium steel has good corrosion resistance and heat resistance, and its hardness is higher than that of silver, so it is suitable for processing simple styles without deformation. When wearing, the most important thing is to prevent jewelry from being scratched by sharp objects and destroying its surface smoothness.
Titanium steel has the characteristics of calm and white luster, no allergy, hardness, no deformation and no fading. It is the hardest metal material in jewelry at present, and it has shown its valuable value after several trials. German design circles use it instead of platinum as a symbol of love and eternal love. Titanium steel is a kind of advanced stainless steel material, which can resist the corrosion of air or chemical corrosive media. It has a bright surface and good corrosion resistance. It is often used in medical technology and advanced watches. When used in high-grade jewelry, it will not cause allergic and other adverse effects on human skin. Therefore, titanium steel is very popular among fashion people, and many international fine products are also put into the development and design of titanium steel jewelry.
Maintenance is very simple, just wipe it with fine cotton cloth to keep it bright. If there is dirt on the surface, you can gently clean the fine cotton cloth with warm water and neutral lotion and then dry it.
Question 9: Which hardness is better, titanium steel, 304 stainless steel or 440 stainless steel? The hardness of 440 stainless steel is higher because its structure is martensite, 304 is austenitic stainless steel, and titanium steel, that is, 3 16L stainless steel, is also austenitic stainless steel. The hardness of austenite is lower than that of martensite.