Referring to stainless steel, stainless steel is often referred to as the 304 stainless steel grade. However, there is also a stainless steel that is as popular as stainless steel 316. Due to its composition, stainless steel 316 is highly applied with the second most consumed quantity of stainless steel, accounting for 20% of the current production of stainless steel.
In addition to standard 316 stainless steel, there are 316L stainless steel - low carbon content (L stands for Low). For products made by welding, the application of 316L stainless steel is quite high as it helps to avoid erosion in such welds. With stainless steel Inox learn the structure of these popular stainless steel in order to better understand their differences.
Table of chemical composition of stainless steel 304, 316, 316L
Mark steel
ác thép
|
Carbon
(C)
|
Mangan
(Mn)
|
Phốt pho
(P)
|
Lưu huỳnh
(S)
|
Silic
(Si)
|
Chrom
(Cr)
|
Niken
(Ni)
|
Molybden
(Mo)
|
Các nguyên tố khác
|
304
|
0.08max
|
2.00
|
0.045
|
0.030
|
1.00
|
17.00
19.00 |
8.00
10.00
|
-
|
-
|
316
|
0.08max
|
2.00
|
0.045
|
0.030
|
1.00
|
16.00
18.00 |
10.00
14.00 |
2.00
3.00 |
-
|
316 L
|
0.03max
|
2.00
|
0.045
|
0.030
|
1.00
|
16.00
18.00 |
10.00
14.00 |
2.00
3.00 |
-
|
According to the composition of stainless steel 316, it can be seen that the composition of Carbon, Manganese, Phosphorus, Sulfur, Silicon has the same ratio between 304 stainless steel and 316 stainless steel, 316 L. Stainless steel except 316L lower as mentioned above). Chromium element 316 is lower than stainless steel 304 1% and stainless steel 316 is higher than stainless steel 304 from 2% - 4%. In addition, the 316 stainless steel features molybdenum, which makes the 316 stainless steel more resistant to corrosion than the 304 stainless steel, especially in high chloride. The higher nickel content makes Stainless Steel 316 stainless steel suitable for marine environments, even contaminated marine areas or areas with temperatures below 0 ° C. This difference leads to different properties, different applications in the lives of two types of stainless steel. 316 is a very distinctive and outstanding grade of steel which is used effectively and aggressively in acidic environments due to its anti-erosion properties of sulfuric, hydrochloric, acetic, formic and tartaric acids. like acid sulphate and alkali chloride.
Properties of stainless steel 316 and the basic difference with stainless steel 304
Compare 316 stainless steel with 304 differences as follows:
Stainless steel 316 without magnetism with stainless steel 304
Anticorrosion:
Corrosion resistance of stainless steel 316 is higher than stainless steel 304. Stainless steel 316 is considered metal resistant to salt water up to 1000mg / L of chlorine at ambient temperature but reduced to 500mg / L at temperatures above 60oC. In addition, the 316 stainless steel is excellent for corrosion resistance and corrosion in warm chloride environments. Stainless steel 316 is very effective for most outdoor structures, or near the sea, ship accessories ... or cleaning level, against inorganic chemicals. In food processing industry ... The corrosion resistance of stainless steel 316L is similar to stainless steel 316 but will achieve better results in welds.
Stainless steel 316 can be used in environments that require relatively high purity
Stainless steel 316 can be used in high temperature, acid, bromide and iodide environments.
High heat resistance:
Stainless steel 316 is anti-oxidant when used continuously in temperatures up to 870 ° C, even up to 925 ° C and is applicable to buildings or products subjected to temperatures above 500 ° C. For 316L stainless steel, it is more resistant to carbon monoxide than standard 316 stainless steel.
Stainless steel 316 can be used in high temperature, acid, bromide and iodide environments.
High heat resistance:
Stainless steel 316 is anti-oxidant when used continuously in temperatures up to 870 ° C, even up to 925 ° C and is applicable to buildings or products subjected to temperatures above 500 ° C. For 316L stainless steel, it is more resistant to carbon monoxide than standard 316 stainless steel.
APPLICATION OF STAINLESS STEEL 316 IN LIFE
Stainless steel 316 is used in food industry, stainless steel 316 is especially used in high chloride.
Medical equipment, instruments and equipment used in strict environmental strict requirements such as hospital, operating room, laboratory. In addition, stainless steel 316 is also used in implantation of joints in the body such as pins, screws in hip joints, knee joints.
Stainless steel 316 is used in the marine industry such as marine accessories, ships, anchors, or aircraft accessories.
Stainless steel 316 is used to make chemical containers, or in the shipping industry.
Mining, petroleum, mining, quarrying and water purification
Construction of nuclear recycling plant.
Used extensively in the architecture, outdoor and special areas, or areas with extreme environmental temperatures.
Source: Stainless steel Dai Duong
www.inoxdaiduong.com/en
Medical equipment, instruments and equipment used in strict environmental strict requirements such as hospital, operating room, laboratory. In addition, stainless steel 316 is also used in implantation of joints in the body such as pins, screws in hip joints, knee joints.
Stainless steel 316 is used in the marine industry such as marine accessories, ships, anchors, or aircraft accessories.
Stainless steel 316 is used to make chemical containers, or in the shipping industry.
Mining, petroleum, mining, quarrying and water purification
Construction of nuclear recycling plant.
Used extensively in the architecture, outdoor and special areas, or areas with extreme environmental temperatures.
Source: Stainless steel Dai Duong
www.inoxdaiduong.com/en
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