316 Stainless Steel And 304 Stainless Steel Difference
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316 stainless steel and 304 stainless steel difference
In fact, different kinds of stainless steel are just different alloying elements added to them, so that they have some characteristics we need, 316 stainless steel is the same, when some properties of 304 stainless steel can not meet our needs, 316 was developed. GNEE Steel Group mainly produces 201 and 304 stainless steel pipes, so what is the difference between 304 and 316? Let's analyze it together today!
1. Brand problem. 304L and 316L are extended respectively in 304 and 316, and their respective grades are as follows:
304 is 06Cr19Ni10, 304L is 00Cr19Ni10;
316 is 0Cr17Ni12Mo2, 316L is 00Cr17Ni14Mo2.
2. Alloy element problem.
304 and 316 material content comparison table
3. Food grade problems.
People often ask whether 304 is food grade? In fact, according to the material, the material content of 304 has reached food grade, and the common food grade materials in the market are about three kinds: 304, 316 and 430 stainless steel. 304 is commonly used in small household appliances or cups in our homes, 316 are used in medical devices, and 430 is often used as stainless steel for cutting tools.
4. Corrosion resistance.
316 stainless steel is the stainless steel produced by 304 stainless steel with more molybdenum on the point corrosion resistance. In various types of water quality (distilled water, drinking water, river water, boiler water, etc.), the corrosion resistance of 304 stainless steel and 316 stainless steel is almost the same, but when the content of chloride ions in the medium is very high, 316 stainless steel is more suitable.
5. Price issues.
Due to the molybdenum and nickel elements added to 316, 316 stainless steel is more expensive than 304 stainless steel.
6. Low-carbon issues.
304L and 316L are two materials with lower carbon content than 304 and 316, and there is also a clear comparison in the material content table. Stainless steel does not rust is mainly the layer of chromium-rich oxide film formed on the surface, but when the temperature is too high, intergranular corrosion will occur, so the carbon content in 304L and 316L is small, which reduces intergranular corrosion. It should be noted that a higher intergranular corrosion sensitivity does not mean that non-low carbon content is more prone to corrosion, and this sensitivity is also higher when in a high chlorine environment.
All stainless steel materials have their specific role and scope of use, reasonable use of their advantages and disadvantages to create greater value for us.
