There are several brands of 304 stainless steel, which is better, high quality stainless steel and 3

There are 10 brands of 304 stainless steel, such as Baosteel, TISCO, Jiugang, Lianzhong, etc.

304 is better, it is used more.

304 stainless steel.

It is the austenitic stainless steel with a large amount of application and the most widely used.

It is suitable for the manufacture of deep-drawn molded parts and acid pipes, containers, structural parts, various instrument bodies, etc., and can also manufacture non-magnetic, low-temperature set up and components.

304 is a versatile, widely used stainless steel material.

It is widely used in the manufacture of equipment and parts that require good comprehensive properties (corrosion resistance and formability). It can withstand general rust in construction and can resist the erosion of food processing media (but the wheel type contains concentrated acids and chlorides.

Corrosion may occur at high temperatures of the ingredients), and it is resistant to organic compounds, dyes, and a wide variety of inorganic compounds.

1. Austenitic stainless steel.

The matrix is dominated by an austenite structure (cy-phase) with a face-centered cubic crystal structure, which is non-magnetic, and is mainly strengthened by cold working (and may lead to a certain magnetism) of stainless steel. The American Iron and Steel Institute is numbered with the 200 and 300 series, such as the 304.

2. Martensitic stainless steel.

If it is a martensitic structure (body-centered cubic or cubic), it is magnetic, and its mechanical properties can be adjusted by heat treatment.

of stainless steel. The American Iron and Steel Institute is marked by numbers 410, 420 and 440. Martensite has an austenitic structure at high temperatures, and when cooled to room temperature at the appropriate rate, the austenite structure is able to transform into martensite (i.e., hardened).

Summary. Hello, dear, the content of my service for you is a little better than high-quality stainless steel. High-quality stainless steel is 321 material, which is different from 304 in that titanium is added, which has better resistance to grain boundary corrosion and high temperature strength than 304, which can effectively control chromium carbide.

It is more suitable for wear-resistant acid containers, transportation pipelines, etc., and is relatively expensive.

Which is better, high-quality stainless steel or 304.

Hello, dear, the content of my service for you is a little better than high-quality stainless steel. High-quality stainless steel is 321 material, which is different from 304 in that titanium is added, which has better resistance to grain boundary corrosion and high temperature strength than 304, which can effectively control chromium carbide. It is more suitable for wear-resistant acid containers, transportation pipelines, etc., and is relatively expensive.

Is the tea bar pot good quality?

Hello, I'll add to you that if you are using it to make food grade, then choose 304, and you can use 304 for the teapot handle. 304 has good anti-corrosion and anti-rust performance, good processing performance, and meets quality requirements, and 304 is good anti-corrosion performance, suitable for indoor food grade use.

Pro, if it is used for industrial use, it is better to have high-quality stainless steel. Food grade with 304 oh pro. Stable and safe, <>

Is the good quality of the tea bar pot harmful to the body?

Dear, long-term use will be harmful.

It is recommended that you use food-grade 304 stainless steel<>

2o1 stainless steel and 304 stainless steel are better than 304 stainless steel.

Compared with 304, 201 has high carbon content and less nickel content, so its leakage bending rate hardness is larger, but the anti-corrosion ability is poor, and it is not suitable in places with high humidity. Moreover, 201 is mainly used for decoration and is not suitable for tableware.

Difference Between 2O1 Stainless Steel and 304 Stainless Steel:

1. Ingredients. That is, the nickel-chromium element is different, 304 steel contains 19 chromium and 10 nickel, while 201 steel contains 17 chromium and 5 nickel.

Anti-corrosion and anti-acid alarm ability: It is precisely because of the different nickel content that the corrosion resistance of 201 steel is often not as good as that of 304 steel, and the acid and alkali resistance of 201 steel is not as good as that of 304 steel.

2. Ability to work under pressure.

Since the carbon element in 201 steel is higher than that of 304 steel, 201 steel is harder and brittle than 304 steel. The toughness of 304 steel is good, and scratching the surface of 201 steel with a knife will usually have obvious scratches, but the scratches on 304 steel will not be obvious.

Due to the absolute advantage of stainless steel, the use coverage is wider than that of 201 stainless steel.

The corrosion resistance, acid and alkali resistance and other properties of stainless steel are not as good as 304 stainless steel. <>

Among the stainless steel models of the national standard, there is no 306 stainless steel...

The national standard stainless steel grades are grouped as follows:

200 series - chromium-nickel-manganese.

Austenitic stainless steel.

300 Series - Chromium-Nickel.

Austenitic stainless steel.

Model 301 – Good ductility for molded products. It can also be quickly hardened by machining. Good weldability. The wear resistance and fatigue strength are better than those of 304 stainless steel.

Model 302 - corrosion resistance is the same as 304, because the carbon content is relatively high, so the strength is better.

Model 303 – By adding a small amount of sulfur and phosphorus, it is easier to cut than 304.

Model 304—general model; i.e. 18-8 stainless steel. The GB grade is 0Cr18Ni9.

Model 309—Better temperature resistance than 304.

Type 316 - after 304, the second most widely used steel grade, mainly used in the food industry and surgical equipment, the addition of molybdenum element to obtain a special corrosion-resistant structure. Because it has better resistance to chloride corrosion than 304, it is also used as "marine steel". SS316 is commonly used in nuclear fuel** installations.

18 grade 10 stainless steel is also generally suitable for this application class. [1]

Model 321—Similar to 304 except that the addition of titanium reduces the risk of corrosion in the weld seam of the material.

400 Series – Ferritic and martensitic stainless steels.

Model 408—Good heat resistance, weak corrosion resistance, 11% CR, 8% NI.

Model 409 – the cheapest model (Anglo-American), commonly used as a car exhaust pipe, is a ferritic stainless steel (chromium steel).

Model 410 - martensitic (high-strength chromium steel), good wear resistance, poor corrosion resistance.

Model 416—Sulfur is added to improve the processability of the material.

Type 420 – "Cutting tool grade" martensitic steel, the earliest stainless steel similar to Brinell high-chromium steel. It is also used for surgical knives and can be made very bright.

Type 430 – ferritic stainless steel, decorative, e.g. for automotive accessories. Good formability, but poor temperature resistance and corrosion resistance.

Model 440 – High strength cutting tool steel, slightly higher carbon content, high yield strength after proper heat treatment, hardness up to 58HRC, one of the hardest stainless steels. The most common example of an application is a "razor blade". There are three commonly used models:

440A, 440B, 440C, and 440F (easy to process).

500 Series – Heat-resistant chromium alloy steel.

600 Series – Martensitic precipitation hardening stainless steel.

Model 630 - the most commonly used precipitation hardening stainless steel model, also commonly called 17-4; 17%cr，4%ni。