Stainless steel is a very commonly used material in everyday life. Currently on the market there are many different types of stainless steel such as stainless steel 316, stainless steel 304, stainless steel 430, stainless steel 210, etc. In the article below, let’s compare stainless steel 430 and 304 in detail in terms of characteristics. properties and applications of these two types of stainless steel, to help you more easily and conveniently choose the type of stainless steel that suits your needs.
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Definition of stainless steel 430 and 304
Stainless steel is an alloy steel containing at least 10.5% chromium and a maximum of 1.2% carbon (by mass ratio). The difference between stainless steel 304 and stainless steel 430 lies in the content of constituent elements.
- Stainless steel 430 belongs to the ferritic stainless steel series and has main components of Chromium and Fe. In addition, it also contains auxiliary components such as Carbon, Nickel, and others. Stainless steel 430 has good durability and high heat resistance. With stainless properties, it is corrosion resistant and resistant to organic acids and inorganic acids. Although the stability of Stainless Steel 430 is quite low, it is still higher than some other types of Stainless Steel.
- Stainless steel 304 is considered one of the most popular types of stainless steel today. Its composition includes Fe, Chromium, Carbon, Nickel, Mn, Si, P and many other components. Stainless steel 304 is often widely used in the production of machinery appliances and accessories. 304 stainless steel output accounts for more than 50% of the total annual stainless steel output in the world.
Compare details of stainless steel 430 and 304
Compare stainless steel properties of 430 and 304 stainless steel
When it comes to comparing stainless steel 430 and 304, we definitely cannot ignore the special properties of these two types of stainless steel. When considering the properties, stainless steel 304 has many advantages over stainless steel 430. Because the composition of stainless steel 304 contains up to 18% Chromium and 10% Nickel, while stainless steel 430 contains little or no nickel. This will create significant differences between 430 and 304 stainless steel, including the following properties.
- Anti-corrosion properties: Stainless steel 304 has better corrosion resistance than stainless steel 430. Because the amount of iron in stainless steel 304 is higher than stainless steel 430. Over time, the risk of rust and corrosion of stainless steel increases. 430 is higher and faster than 304 stainless steel.
- Rust properties: Stainless steel 304 also has better rust properties than stainless steel 430. In general, stainless steel 304 has superior characteristics. This is also the reason why stainless steel 304 is used more widely and diversely than stainless steel 430, and is preferred by many manufacturers for use as components and components in many devices and appliances.
Compare the price of stainless steel 430 and 304
Price is also a matter of concern when comparing stainless steel 430 and 304. Price also plays an important role in deciding to use stainless steel 430 and 304. Products made from stainless steel 430 have good durability, but They do not have outstanding properties like 304 stainless steel, so their price is often lower, usually only half the price of 304 stainless steel.
Comparison table of stainless steel 430 and 304
| Comparison point | Stainless steel 304 | Stainless steel 430 |
| Corrosion resistance | Stainless steel 304 has high corrosion resistance, can endure harsh environments and does not rust when exposed to water. | Stainless steel 430 belongs to the ferritic steel group with a higher iron content, so its corrosion resistance is lower. After a period of use, 430 stainless steel can become dull and lose its original shine. |
| Stiffness | The hardness of 304 stainless steel is average, however it is higher than 430 stainless steel. | Hardness is lower than 304 stainless steel, brittle and easily broken. |
| Shaping ability | Stainless steel 304 has very good shaping ability, allowing it to be laminated without heating. | During the welding process, stainless steel 430 is not highly appreciated because it cannot withstand high pressure and has low hardness. |
| Possibility of magnetism | Stainless steel 430 has low, almost non-existent magnetic properties. | Stainless steel 304 is highly magnetic, so this type of stainless steel is widely used in many products that require magnetism and has the ability to integrate with magnetic applications. |
How to distinguish between 430 and 304 stainless steel
Types of stainless steel often have quite similar external characteristics, making it difficult for users to distinguish which type is 430 stainless steel and which type is 304 stainless steel. To avoid users confusing these two types of stainless steel, major manufacturers Usually equipped with stickers and debossing on the product. However, to be more certain, we can apply some of the following methods to help distinguish 430 and 304 stainless steel easily:
- Using magnets to classify 430 and 304 stainless steel is an effective, accurate and easy to apply method. With more iron content, 430 stainless steel will be able to attract stronger magnets, while 304 stainless steel products may not attract magnets or attract very little.
- However, the use of reagents or acids can also help accurately distinguish 430 and 304 stainless steel, but it should be noted that this method is potentially more dangerous. Should only be performed by professionals and ensure appropriate protective equipment is present.
Which type of stainless steel 430 or 304 is better?
Based on the comparisons mentioned above, we can see that 430 stainless steel is not as good quality as 304 stainless steel. Therefore, when buying household appliances or construction materials, choose 304 stainless steel. would be more optimal. Stainless steel 304 has better corrosion resistance, is more durable and retains its shine longer than stainless steel 430. However, in terms of price, stainless steel 430 has a lower price and can be applied in different conditions. Does not require too high durability or aesthetics.
The above article is some comparative information between stainless steel 430 and 304 as well as ways to help distinguish these two types of stainless steel. If you are wondering which type is better to choose, you should base it on factors such as your own desires, durability, characteristics, price, etc. Or you can ask for advice from experts. participating in the stainless steel field to help you choose the best and most suitable material.
