321 Stainless Steel Coils
China's leading stainless steel coil manufacturer maintains a large inventory of both cold-rolled and hot-rolled 321 stainless steel coils. Cold-rolled thicknesses range from 0.3–3.0 mm, and hot-rolled thicknesses from 3.0–10 mm. Standard widths are 1000 mm, 1219 mm, and 1500 mm. Slitting, leveling, and length cutting are supported, and non-standard sizes can be customized. Sufficient stock is available, suitable for processing needs such as chemical pipelines and heat-resistant equipment.
321 stainless steel coils belong to titanium-stabilized austenitic stainless steel, with outstanding core advantages. The addition of titanium effectively inhibits intergranular corrosion, resulting in excellent weldability and resistance to rust and cracking after welding. It possesses excellent high-temperature resistance and creep resistance, maintaining structural stability and resisting deformation under medium- and high-temperature conditions. High toughness and plasticity make it highly adaptable to bending, stamping, and rolling processes. It also exhibits good resistance to acid and alkali corrosion and low-temperature mechanical properties, ensuring a long service life.
Its applications are extremely wide: in the chemical industry, it is used for pipelines, reaction vessels, corrosion-resistant storage tanks, and chemical equipment accessories; in the power industry, it is suitable for boiler pipelines, heating networks, and heat-resistant components for power plants; it can also be used in the manufacture of aerospace machinery, pressure vessels, and heat exchangers; it is also widely used in food processing machinery, kitchen and bathroom equipment, automotive exhaust components, and heat treatment furnace accessories, making it the preferred material for applications requiring frequent welding and high-temperature corrosion resistance.
Comparison Table of 321 and 304 Stainless Steel Coils
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National Standard Grade |
06Cr19Ni10 |
06Cr18Ni11Ti |
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Core Components |
Standard chromium-nickel ratio, titanium-free |
Added titanium to stabilize the metallographic structure |
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Resistance to Intergranular Corrosion |
General performance, prone to intergranular corrosion after welding |
Extremely strong resistance to intergranular corrosion, completely avoiding post-weld corrosion |
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High Temperature Resistance |
Suitable for ambient and low-temperature conditions below 450℃ |
Can withstand medium to high temperature environments around 600℃ |
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Welding Performance |
Ordinary, weld joints are prone to rusting and corrosion resistance decreases |
Excellent weldability, stable post-weld performance requiring no secondary treatment |
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Applicable Scenarios |
Suitable for home decoration, kitchen and bathroom, general equipment, and general corrosion protection |
Chemical pipelines, boiler accessories, pressure vessels, high-temperature welded components |
|
Market Price |
High cost-performance ratio, affordable price |
High raw material cost, price higher than 304 |
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