316 stainless steel and 304 which is better?316 stainless steel and 304 stainless steel are two common stainless steel materials, they have different advantages and characteristics in different applications.
1, material composition:
316 stainless steel contains 2-3% molybdenum, while 304 stainless steel does not contain molybdenum. The addition of molybdenum can improve the corrosion resistance of stainless steel, especially in acidic environments and seawater.
2, corrosion resistance:
316 stainless steel has better corrosion resistance, especially in acidic environment and seawater. It can resist the erosion of sulfuric acid, hydrochloric acid, chloride and other corrosive media, so it is widely used in the field of marine engineering, chemical equipment and medical devices, etc. 304 stainless steel has good corrosion resistance in general atmospheric environment and fresh water, but the corrosion resistance in acidic environment and seawater is poor.
3, mechanical properties:
316 stainless steel has high strength and hardness, good plasticity and toughness, suitable for making high strength and high wear-resistant parts. 304 stainless steel has lower strength and hardness, but has good plasticity and toughness, suitable for making general requirements of the parts.
4, processing performance:
316 stainless steel machining performance is poor, cutting performance is poor, easy to produce tool wear and cutting heat. 304 stainless steel machining performance is better, cutting performance is good, tool wear and cutting heat in the process of machining is small.
5, price:
The price of 316 stainless steel is relatively high, mainly due to the molybdenum element contained in its increased production costs. 304 stainless steel price is relatively low, is a kind of economic and practical stainless steel materials.
Second, choose what to pay attention to stainless steel
1, the material of stainless steel: stainless steel has a variety of materials, such as 304, 316 and so on. Different materials of stainless steel have different corrosion resistance and strength. According to the specific use of the environment and demand to choose the right material.
2, surface treatment: there are many kinds of surface treatment of stainless steel, such as polishing, sandblasting, chrome plating and so on. Different surface treatment will affect the appearance and corrosion resistance of stainless steel. According to the use of the scene and personal preference to choose the appropriate surface treatment.
3, thickness: the thickness of stainless steel will affect its strength and durability. Generally speaking, thicker stainless steel is stronger, but also heavier. Choose the right thickness according to the specific needs of use.
4, price: different materials and specifications of stainless steel prices vary. When choosing, you need to consider your budget and cost-effective.
316 stainless steel and 304 which is good, it is introduced here first. 316 stainless steel and 304 stainless steel in corrosion resistance, mechanical properties, processing performance and price and other aspects of the differences. If in the acidic environment, seawater environment or the higher requirements for corrosion resistance, it is recommended to choose 316 stainless steel.
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