Mainly used for materials other than DDQ applications. This 304 ddq stainless steel material is characterized by relatively low elongation (≧45%), relatively high hardness (≦180HB), and an internal grain size grade of 8.0~9.0. Compared with DDQ material, its deep drawing performance is relatively poor.
304DQ/DDQ Cold Rolled Stainless Steel Coil
304 DDQ Stainless Steel, 304 DQDDQ Cold Rolled Stainless Steel Coil(0.2mm-8mm) Supplier | Manufacturer | Exporter
Huaxiao Capacity about 304 DQDDQ cold rolled stainless steel coil, 304 DQ DDQ CRC
|Thickness||0.2mm – 8.0mm, etc. Can be customized according to customer requirements.|
|Width||600mm – 2000mm, Can be customized according to customer requirements.|
|Max coil weight||25 MT, Can be customized according to customer requirements.|
|Coil ID||508mm, and 610mm, Can be customized according to customer requirements.|
|Finish||2B,2D, BA, HL, No. 4, Mirror, etc.|
|Standard||JIS, ASTM, AISI, GB, EN, DIN|
|Mill||TISCO, BaoSteel, Yongjin, Tingshan Brand, etc.|
If you have any needs, please free to contact us for a quotation.
Cold Rolled 304DQ/DDQ Stainless Steel Data Sheet
304 DQ DDQ Same Grade From Different Country Standard
SUS304DQ SUS304DDQ S30408DQ 06Cr19Ni10DQ 0Cr18Ni9DQ S30400DQ
304DQ DDQ Chemical component ASTM A240:
304DQ DDQ Mechanical Property ASTM A240:
Tensile strength: > 515 Mpa
Yield Strength: >205 Mpa
Elongation (%): > 53%
Hardness: < HRB92
Application of 304 DQ, DDQ Stainless Steel
304 stainless steel is a common grade of stainless steel known for its excellent corrosion resistance, versatility, and affordability. When it comes to the DQ (Deep Drawing Quality) and DDQ (Extra Deep Drawing Quality) variations of 304 stainless steel, they are specifically suited for applications that involve deep drawing processes.
1. 304 DQ (Deep Drawing Quality):
304 DQ stainless steel possesses high ductility, making it ideal for deep drawing applications where complex shapes need to be formed from flat sheets. Some common applications of 304 DQ stainless steel include:
– Kitchen sinks: The deep bowls and intricate shapes of stainless steel kitchen sinks can be achieved using 304 DQ stainless steel.
– Automotive parts: Various components in the automotive industry, such as exhaust systems, fuel tanks, and body panels, can be manufactured using 304 DQ stainless steel.
– Household appliances: Manufacturers use 304 DQ stainless steel for producing parts of appliances like washing machine drums, refrigerator panels, and dishwasher interiors.
2. 304 DDQ (Extra Deep Drawing Quality):
304 DDQ stainless steel offers even higher formability compared to 304 DQ stainless steel. It is used when extremely complex shapes with tight tolerances are required. Some applications of 304 DDQ stainless steel include:
– Cookware: Pots, pans, and other cookware items often require intricate shapes and precise dimensions, which can be achieved using 304 DDQ stainless steel.
– Metal furniture: 304 DDQ stainless steel is employed in the production of furniture pieces that feature complex designs and shapes, such as chair frames and table bases.
– Decorative items: The high formability of 304 DDQ stainless steel makes it suitable for manufacturing decorative items like sculptures, ornaments, and jewelry.
Both 304 DQ and DDQ stainless steel grades provide excellent corrosion resistance and can be polished to achieve an attractive finish. However, the choice between the two depends on the level of formability required for the specific application. If deep drawing is the primary concern, 304 DQ stainless steel may be sufficient, while for more demanding deep drawing processes, 304 DDQ stainless steel is preferred.
Description of DQ, DDQ, and Normal Material
Stainless steel is a versatile and widely used material known for its excellent corrosion resistance and durability. Within the category of stainless steel, there are different grades and types, each offering specific properties and characteristics for various applications.
DQ, DDQ, and ordinary stainless steel are three commonly used terms to describe different stainless steel materials. Let’s explore what each of these terms means:
DQ Stainless Steel (Deep Drawing Quality):
DQ stainless steel refers to a type of stainless steel that is specifically designed for deep drawing applications. Deep drawing is a metal-forming process used to create complex shapes from flat sheets of metal. DQ stainless steel possesses high ductility, which allows it to undergo significant plastic deformation without fracturing or tearing. It is suitable for manufacturing products such as kitchen sinks, automobile parts, and household appliances.
DDQ Stainless Steel (Extra Deep Drawing Quality):
DDQ stainless steel is an even more formable grade compared to DQ stainless steel. It possesses extremely high ductility, allowing it to undergo severe deformation during the deep drawing process. DDQ stainless steel is commonly used in applications that require complex shapes with tight tolerances, such as cookware, automotive components, and metal furniture.
Ordinary Stainless Steel:
Ordinary stainless steel refers to standard grades of stainless steel that do not have specific designations like DQ or DDQ. These grades still offer good corrosion resistance and mechanical properties but may not possess the same level of formability as DQ or DDQ stainless steel. Ordinary stainless steel is widely used in various industries, including construction, food processing, chemical processing, and marine applications.
It’s important to note that the specific properties and composition of stainless steel can vary depending on the grade and manufacturer. When selecting a stainless steel material for a particular application, it’s crucial to consider factors such as corrosion resistance, mechanical strength, formability, and cost to ensure the chosen grade meets the requirements of the intended use.
What is the Difference Between 304 and 304DDQ Stainless Steel?
Compared with 304, the CR content of 304DQ is increased by half to one, and the polishing is better. Compared with 304, the content of 304DDQ has not changed. The content of NI is increased by half to one, and the deep drawing and deep drawing are better. “Soft material” but poor polishing performance.
304DDQ stainless steel uses a special process to increase the chromium content of 304 stainless steel by 2 points (304 steel plate is 18/8, 304 DDQ is 18/10), which means that the content of nickel (Ni) in 304 stainless steel is 18%, and chromium ( The content of Cr) is 8%; the content of nickel (Ni) in the improved 304DDQ stainless steel is 18%, and the content of chromium (Cr) is 10%; the steel plate has high brightness, no discoloration, and beautiful appearance, but also has the best Good ductility, toughness, and corrosion resistance.