Stainless Steel Coil

Duplex stainless steel grade 2205 (also known as UNS S31803/S32205, ASTM A240 Type 2205, Inox 2205, AISI 318LN, SUS 329J3L, or EN 1.4462) is a two-phase (ferritic-austenitic) alloy containing about 22–23% chromium, 2.5–3.5% molybdenum, 4.5–6.5% nickel, and roughly 0.15% nitrogen. Its balanced microstructure provides a unique combination of high strength and excellent corrosion resistance. For example, grade 2205 typically has about twice the yield strength of 316L stainless steel, allowing designers to use much thinner, lighter sections without sacrificing performance.

The alloy is normally supplied in the solution-annealed condition (per ASTM A240/A240M) to retain an ideal duplex structure. Grade 2205 remains tough from cryogenic temperatures (around –50°C) up to about +300°C; beyond this range, brittle sigma phase can form in welds. These properties make duplex 2205 an excellent choice for demanding applications such as chemical processing, offshore oil & gas, and marine environments where both high strength and chloride corrosion resistance are required.

Incoloy 840 is a high-temperature alloy mainly made of nickel and chromium, with added iron, aluminum, and titanium. It is engineered for extreme heat and harsh service conditions. Incoloy 840 retains outstanding strength even when very hot and resists oxidation in air and steam, making it ideal for extreme environments.

QN1803 stainless steel belongs to the QN family developed by Qingtuo Group, which also includes QN1701, QN1804L, QN1906Mo, and QN2109Mo. As a next-generation, high-nitrogen austenitic alloy, QN1803 is engineered to bridge the gap between performance and cost, offering a compelling substitute for conventional 304 stainless steel.

430 stainless steel coils are often magnetic and feature a high carbon content, classifying them as ferritic stainless steel. They cannot be rapidly hardened and require coolant during machining. The most common surface treatments for 430 stainless steel coils are 2B and BA. At GHT Steel, we use advanced machinery to process 430 stainless steel coils through both cold rolling and hot rolling. Additionally, we offer customized services to meet your specific needs regarding sizes, grades, and shapes.

316 stainless steel sheet is known for its higher nickel content, which allows for easy forming and drawing. This grade is highly favored in the market for its superior corrosion resistance, especially compared to other grades.
At GHT Steel, we offer both black and white 316 stainless steel sheets with PVC coating, utilizing advanced normal and laser techniques to ensure exceptional quality.

301 stainless steel coil is austenitic and non-magnetic in its annealed state, but becomes magnetic after cold working. It cannot be hardened through heat treatment. Additionally, we offer customization of the coil in various sizes, shapes, and grades to meet the specific needs of your projects.

GHT Steel's 201 stainless steel coil performs excellently in harsh environments, making it ideal for applications exposed to corrosion, alkalis, and other harmful chemicals. Compared to other materials, the 201 stainless steel coil offers higher strength and durability.
Processing options: Hot rolled, cold rolled, etc.
Length range: 100mm to 6000mm.
Tensile strength: 71,000 MPa.

As a leading stainless steel supplier in China, Guanghetong (GHT Steel) stocks and supplies high-quality 304 stainless steel coils from renowned brands, offering timely delivery and the best prices.