Complete information on regular stainless steel grade 201 304 316L 430

Customers who purchase stainless steel often ask what are the differences between 201, 304, 316L and 430? Today, the editor of Grand Metal will give you a summary of the information on regular stainless steel grade of 201, 304, 316L, and 430,just below:

Grade 201 stainless steel is an alloy that contains around 1% nickel with china standard (GB), t is quite popular among Chinaand developing countries.

While it is less expensive than some other alloys (because of its low nickel content), it is not as easy to work or form.  Type 201 is an austenitic metal because it is a non-magnetic stainless steel that contains high levels of chromium and nickel and lowevels of carbon.  it is a mid-range product with a vanety of useful qualities.  While it is ideal for certain uses.  However, it is not a good choice for corrosive and chemical conditions.

Composition: 201 stainless steel usually contains 17-19% chromium, 4-6% nickel and small amounts of manganese.

Features: 201 stainless steel has good corrosion resistance, but compared to other stainless steels, its corrosion resistance is slightly inferior. It is commonly used to make kitchen appliances, home decoration and some low-demand structural components.

Grade 304 is the standard "18/8" stainless steel,it is the most versatile and most widely used stainless steel, avalable in a widerrange of products, forms and finishes than any other. It has excellent forming and welding characteristics. The balanced austenitic structure of Grade 304 enables it to be severely deep drawn without intermediate annealing, which has made thisgrade dominant in the manufacture of drawn stainless parts such as sinks,hollow-ware and saucepans. For these applicationsit is common to use special "304DDQ (Deep Drawing Quality) variants. Grade 304 is readily brake or rol formed into a varietyof components for aoplications in the industrial,architectural and transportation fields. Grade 304 also has outstanding welding characteristics.  Post-weld annealing is not required when welding thin sections.

Composition: 304 stainless steel usually contains 18-20% chromium and 8-10% nickel, as well as some other elements such as manganese, silicon, phosphorus and sulfur.

Features: 304 stainless steel has excellent corrosion resistance, especially under normal atmospheric conditions. It is widely used in manufacturing food processing equipment, chemical industry equipment, medical equipment, construction materials, etc.

Grade 316 is the standard molybdenum-bearing grade, second in importance to 304 amongst the austenitic stainless steels.The molybdenum gives 316 better overall corrosion resistant properties than Grade 304, particularly higher resistance to pitingand crevice corrosion in chloride environments.

Grade 316L, the low carbon version of 316 and is immune from sensitisation (grain boundary carbide precipitatlon). Thus it is extensively used in heavy gauge welded components (over about 6mm). There is commonly no appreciable price diference between 316 and 316L stainless steel.
The austenitic structure also gives these grades excellent toughness, even down to cryogenic temperaturescompared to chromium-nickel austenitic stainless steels. 316L stainless steel offers higher creep. stress to rupture and tensilestrength at elevated temperatures.

Composition: 316L stainless steel contains 16-18% chromium, 10-14% nickel and 2-3% molybdenum, as well as small amounts of carbon, manganese, silicon and other elements.

Features: 316L stainless steel has excellent corrosion resistance and is especially suitable for use in humid and corrosive environments, such as seawater. It is often used in the manufacture of marine equipment, chemical industry equipment, medical equipment and demanding food processing equipment.

Grade 430 stainless steel is the most commonly used feritic stainless steel, It is moderately corrosion resistant, and is usefuiin mildly corrosive conditions.Grade 430 has useful resistance to heat and oxidation, and is not susceptible to stress corrosion cracking.
It has good formability and fabrication characteristics, mechanical properties, although inferior to the austenitic stainless steels in most applications the steel is used where the corrosion environment is only mildy aggressive, when it gives long lastingappearance and service life.

Composition: 430 stainless steel contains 16-18% chromium, but relatively low nickel content, usually between 0-0.75%.

Features: 430 stainless steel has poorer corrosion resistance than other stainless steels and is mainly used for general-purpose applications, such as manufacturing kitchen utensils, automobile exhaust systems, building materials, etc. It has relatively high strength and wear resistance, but relatively poor corrosion resistance.

The folowing chart list is the thickness of stainless steel sheet, you may have an idea the thickness that we can supply, pleasenote that industry standard permits deviations from nominal thicknesses, and sheet after surface treatment, it will change.

For following Chart,you will know that the size that we can supply,please kindly note,if you need the special size,cut to length,this service both is avaialble.

For following chart,you will know the weigth of each regular size's weigth,and then calculate the weight of the whole order, it s just for reference.

In summary, conventional steel grades 201, 304, 316l, and 430 play an important role in different application fields due to their different compositions and characteristics, and have become the most commonly used stainless steel grades in the world.