The stainless steel tube is a versatile product classified into various systems: the Cr system (400 series), Cr-Ni system (300 series), Cr-Mn-Ni system (200 series), and the precipitation hardening system (600 series). The 200 series features chrome-nickel-manganese austenitic stainless steel, while the 300 series is known for chrome-nickel austenitic stainless steel.
301With excellent extension properties, the 301 stainless steel is perfect for molding products. It can be mechanically processed to increase hardness and offers good weldability. Its wear resistance and fatigue strength surpass those of 304 stainless steel.
302The 302 stainless steel shares similar corrosion resistance with 304, but its higher carbon content provides enhanced strength.
303-303 stainless steel is engineered for easier cutting than 304, thanks to a small addition of sulfur and phosphorus.
304Known as 18/8 stainless steel, 304 has a GB grade of 0Cr18Ni9. It offers superior temperature resistance compared to 304, making it a versatile and widely used grade.
316As the second most widely used steel grade after 304, 316 stainless steel is integral in the food and pharmaceutical industries, as well as in surgical equipment. The addition of molybdenum grants it a unique structure resistant to corrosion.
321The properties of 321 stainless steel are similar to 304, but the inclusion of titanium reduces the risk of corrosion in material weld.
400The 400 series encompasses ferritic and martensitic stainless steel.
408408 stainless steel offers good heat resistance but weak corrosion resistance with an 11% Cr and 8% Ni composition.
409As the most economical model, 409 stainless steel is typically used in automotive exhaust pipes and is a ferritic (chrome) stainless steel.
410410 stainless steel is a high-strength martensitic (chrome) steel with excellent wear resistance but limited corrosion resistance.
416The addition of sulfur in 416 stainless steel enhances its processing properties.
420Known as 'cutting grade' martensitic steel, 420 stainless steel is akin to early Brinell high chromium steel. Used in surgical knives, it can achieve a very bright finish.
430 430 ferritic stainless steel is used for decoration, such as automotive accessories. It offers good formability but lacks temperature resistance and corrosion resistance.
440440 stainless steel is a high-strength cutting tool steel with a slightly higher carbon content. Proper heat treatment can yield high strength and hardness up to 58HRC. Commonly used for razor blades, it comes in 440A, 440B, 440C, and 440F (easy processing type).
500The 500 series consists of heat-resistant chrome alloy steel.
600The 600 series is known for martensitic precipitation-hardened stainless steel tubes.
Q: What is your major market?
A: We proudly export 95% of our high-quality tubes globally. Our primary markets include the USA, Canada, Australia, Japan, Russia, Germany, France, Dubai, Brazil, Chile, India, Thailand, South Africa, Egypt, Nigeria, and more.
Q: Can you provide a mill test certificate?
A: Absolutely! We can provide Mill Test Certificates for both hot-rolled raw material coils and cold-rolled coils, ensuring you receive verified and premium materials.
Q: What is the MOQ?
A: The minimum order quantity is 1 ton.
Q: How can I get a sample?
A: We offer FREE samples for your inspection and testing. To obtain free samples, please provide your detailed receiving address (including postal code) along with your DHL/FedEx/UPS account for sample collection. Please note, the courier cost will be borne by you.
Q: How can I get your price list?
A: To receive our comprehensive price list, send us your email or fax along with order details—such as Quantity, Specification (steel type, thickness, width, surface finish). We will promptly respond with the price list.
Q: What are the packing details?
A: We ensure that our various steel products are meticulously packaged and reinforced to guarantee safe loading and transport.
Q: What payment terms do you accept?
A: We primarily accept TT and L/C payment terms. For L/C, we need to review the issuing bank's details before acceptance. If you have other preferences, feel free to negotiate with us.