Our premium stainless steel tubes are categorized into several distinct systems, each offering unique properties for diverse applications. These include: 1. Cr system (400 series) 2. Cr-Ni system (300 series) 3. Cr-Mn-Ni system (200 series) 4. Precipitation hardening system (600 series). The 200 series features chrome-nickel-manganese austenitic stainless steel, boasting excellent formability and economic efficiency. The 300 series, composed of chrome-nickel austenitic stainless steel, is renowned for its outstanding resistance to corrosion and high temperature.
301301 - Exhibits excellent ductility, making it ideal for molding applications. It can be hardened through mechanical processing, showcasing superb weldability. Additionally, it offers superior wear resistance and fatigue strength compared to 304 stainless steel.
302302 - Known for corrosion resistance akin to 304, but with a higher carbon content that enhances its strength.
303-303 - Enhanced machinability due to the addition of sulfur and phosphorus, making it easier to cut than 304.
304304 - Commonly referred to as 18/8 stainless steel, with a GB grade of 0Cr18Ni9. It offers excellent corrosion resistance and good formability. Additionally, the 309 variant provides enhanced temperature resistance over the 304.
316316 - The second most widely used grade after 304, primarily utilized in the food, pharmaceutical, and surgical equipment industries. The addition of molybdenum enhances its corrosion resistance, making it ideal for harsh environments.
321321 - Similar to 304 in most properties, but with added titanium to minimize the risk of weld corrosion.
400400 series - Encompasses ferritic and martensitic stainless steels, known for their magnetic properties and moderate corrosion resistance.
408408 - Offers good heat resistance but limited corrosion resistance, containing 11% Cr and 8% Ni.
409409 - The most economical option, often used for automotive exhaust systems. It is a ferritic stainless steel known for its affordability and decent corrosion resistance.
410410 - A martensitic stainless steel that provides high strength and excellent wear resistance, though it has lower corrosion resistance.
416416 - Improved machinability thanks to the addition of sulfur, making it easier to process.
420420 - Known as a 'cutting grade' martensitic steel, similar to the earliest high chromium stainless steels. It's used in applications requiring a very bright finish, such as surgical knives.
430 430 - A ferritic stainless steel often used for decorative applications, such as automotive trim. It offers good formability but has lower temperature and corrosion resistance.
440440 - A high-strength cutting tool steel with a higher carbon content. Proper heat treatment can yield high tensile strength and hardness up to 58 HRC, making it one of the hardest stainless steels. Commonly used in razor blades, 440 steel comes in several variants: 440A, 440B, 440C, and 440F (easy processing type).
500500 series - Specializes in heat-resistant chrome alloy steels, ideal for high-temperature applications.
600600 series - Features martensitic precipitation-hardened stainless steels, known for their exceptional strength and hardness.
Q: What is your major market?
A: An impressive 95% of our seamless SS tubing is exported globally. Our primary markets include America, Canada, Australia, Japan, Russia, Germany, France, Dubai, Brazil, Chile, India, Thailand, South Africa, Egypt, Nigeria, and many more.
Q: Can you provide a mill test certificate?
A: Absolutely! We provide Mill Test Certificates for both hot rolled raw material coils and cold rolled coils.
Q: What is the minimum order quantity (MOQ)?
A: Our minimum order quantity is 1 ton.
Q: How can I get a sample?
A: We offer FREE samples for evaluation. To receive your free samples, please send us your detailed receiving address (including postal code) and your DHL, FedEx, or UPS account information to cover the courier cost, which will be borne by you.
Q: How can I get your price list?
A: Kindly send us your email or fax along with your order details - quantity, specification (steel type, thickness, width, surface finish), and we will promptly provide you with our price list.
Q: What are your packing details?
A: We ensure the appropriate packaging and reinforcement for various steel products during loading and transport to guarantee their safety and integrity.
Q: What payment terms do you accept?
A: We primarily accept TT and L/C terms. For L/C, we need to review the issuing bank's details to determine acceptance. If you have other preferences, please feel free to negotiate with us.