304
Introduction
304 stainless steel is a common stainless steel, the industry also called 18 / 8 stainless steel. Its corrosion resistance is superior to 430 stainless steel, 316 stainless steel cheaper but inferior to the price, it is widely used in life, for example: some high-end stainless steel cutlery, outdoor railings, etc.
Although this is very common in the domestic stainless steel, but "304" This call was from the United States. Many people think that 304 is called a model in Japan, but strictly speaking, the Japanese official called for 304 stainless steel is "SUS304".
304 is a versatile stainless steel, it is widely used in the production requirements of a good overall performance (corrosion resistance and formability) of equipment and parts. In order to maintain the inherent corrosion resistance of stainless steel, steel must contain more than 12% chromium. 304 stainless steel is produced in accordance with ASTM standards of the United States a grade of stainless steel. 304 is equivalent to China's 0Cr19Ni9 (0Cr18Ni9) stainless steel.
Composition
Basic information
Chemical grade 304 19% for the 00Cr19Ni10 chromium, 8-10% nickel.
304 is the most widely used stainless steel, heat-resistant steel. Equipment used in food production, general chemical equipment, nuclear energy.
304 stainless steel chemical composition
Specifications C Si Mn P S Cr Ni (Ni) Mo
Density of 7.93 g of stainless steel SUS304 / cm 3
SUS304 chemical composition of ≤ 0.08 ≤ 1.00 ≤ 2.00 ≤ 0.05 ≤ 0.03 18.00-20.00 8.00 ~ 10.50 -
Product standards
For 304 stainless steel is a very important parameter directly determines its corrosion resistance, but also determines its value.
304 is the most important elements Ni, Cr, but it is not limited to these two elements. Specific requirements from the product standard. Common conditions that determine the industry as long as the Ni content is more than 8%, Cr content is more than 18%, it can be considered 304. This is why the industry would call this type of stainless steel 18 / 8 stainless steel causes.
In actual fact, the relevant product standard 304 has a very clear requirements, and standards for these products there are different shapes of stainless steel are some differences. Here are some common product standards and testing.
304 to determine
To determine a material is 304 stainless steel, the product must meet the standard requirements of each element, as long as one does not, can not be called 304.
1, ASTM A276 (Standard Specification for Stainless Steel Bars Bars and Shapes profile)
304 C Mn P S Si Cr Ni
Request,% 0.08 2.00 0.045 0.030 1.00 18.0-20.0 8.0-11.0
2, ASTM A240 (Chromium and Chromium-Nickel Stainless Steel Plate Plate, Sheet Sheet, and Strip Strip for Pressure essels and for General Applications)
304 C Mn P S Si Cr Ni N
Request,% 0.07 2.00 0.10 0.045 0.030 0.075 17.5-19.5 8.0-10.5
3, JIS G4305 (cold-rolled stainless steel plate cold-rolled plate, sheet and strip sheet and strip)
SUS 304 C Mn P S Si Cr Ni
Request,% 0.08 2.00 0.045 0.030 1.00 18.0-20.0 8.0-10.5
4, JIS G4303 (Stainless steel bars stainless steel rods)
SUS 304 C Mn P S Si Cr Ni
Request,% 0.08 2.00 0.045 0.030 1.00 18.0-20.0 8.0-10.5
Introduction
304 stainless steel is a common stainless steel, the industry also called 18 / 8 stainless steel. Its corrosion resistance is superior to 430 stainless steel, 316 stainless steel cheaper but inferior to the price, it is widely used in life, for example: some high-end stainless steel cutlery, outdoor railings, etc.
Although this is very common in the domestic stainless steel, but "304" This call was from the United States. Many people think that 304 is called a model in Japan, but strictly speaking, the Japanese official called for 304 stainless steel is "SUS304".
304 is a versatile stainless steel, it is widely used in the production requirements of a good overall performance (corrosion resistance and formability) of equipment and parts. In order to maintain the inherent corrosion resistance of stainless steel, steel must contain more than 12% chromium. 304 stainless steel is produced in accordance with ASTM standards of the United States a grade of stainless steel. 304 is equivalent to China's 0Cr19Ni9 (0Cr18Ni9) stainless steel.
Composition
Basic information
Chemical grade 304 19% for the 00Cr19Ni10 chromium, 8-10% nickel.
304 is the most widely used stainless steel, heat-resistant steel. Equipment used in food production, general chemical equipment, nuclear energy.
304 stainless steel chemical composition
Specifications C Si Mn P S Cr Ni (Ni) Mo
Density of 7.93 g of stainless steel SUS304 / cm 3
SUS304 chemical composition of ≤ 0.08 ≤ 1.00 ≤ 2.00 ≤ 0.05 ≤ 0.03 18.00-20.00 8.00 ~ 10.50 -
Product standards
For 304 stainless steel is a very important parameter directly determines its corrosion resistance, but also determines its value.
304 is the most important elements Ni, Cr, but it is not limited to these two elements. Specific requirements from the product standard. Common conditions that determine the industry as long as the Ni content is more than 8%, Cr content is more than 18%, it can be considered 304. This is why the industry would call this type of stainless steel 18 / 8 stainless steel causes.
In actual fact, the relevant product standard 304 has a very clear requirements, and standards for these products there are different shapes of stainless steel are some differences. Here are some common product standards and testing.
304 to determine
To determine a material is 304 stainless steel, the product must meet the standard requirements of each element, as long as one does not, can not be called 304.
1, ASTM A276 (Standard Specification for Stainless Steel Bars Bars and Shapes profile)
304 C Mn P S Si Cr Ni
Request,% 0.08 2.00 0.045 0.030 1.00 18.0-20.0 8.0-11.0
2, ASTM A240 (Chromium and Chromium-Nickel Stainless Steel Plate Plate, Sheet Sheet, and Strip Strip for Pressure essels and for General Applications)
304 C Mn P S Si Cr Ni N
Request,% 0.07 2.00 0.10 0.045 0.030 0.075 17.5-19.5 8.0-10.5
3, JIS G4305 (cold-rolled stainless steel plate cold-rolled plate, sheet and strip sheet and strip)
SUS 304 C Mn P S Si Cr Ni
Request,% 0.08 2.00 0.045 0.030 1.00 18.0-20.0 8.0-10.5
4, JIS G4303 (Stainless steel bars stainless steel rods)
SUS 304 C Mn P S Si Cr Ni
Request,% 0.08 2.00 0.045 0.030 1.00 18.0-20.0 8.0-10.5
