309 Stainless Steel Coil Supplier | Exceptional Stainless Steel Coil Suppliers in China

Exceptional Stainless Steel Coil Suppliers

As a trusted stainless steel coil supplier in China, we specialize in providing 309 stainless steel coils with outstanding high-temperature resistance and excellent corrosion performance. Our factory is equipped with advanced slitting, annealing, and surface treatment lines, ensuring precise control over dimensions and surface finishes such as 2B, BA, HL, and mirror polish. These coils are widely used in heat exchangers, kilns, thermal processing plants, and chemical industries requiring superior oxidation resistance. We offer flexible specifications, third-party inspections like SGS or TUV, and full OEM/ODM support to meet the needs of global buyers seeking high-performance stainless steel coil solutions.

Parameters

Item	Description
Product Name	Stainless Steel Coil, Stainless Coil, SS Coil
Material Grades	201 / 202 / 304 / 304L / 304H / 309 / 309S / 310 / 310S / 316 / 316L / 317 / 317L / 321 / 321H / 347 / 347H / 409 / 410S / 416 / 420 / 430 / 439 / 440 / 444 / 446 / 2205 / 2507 / S31803 / S32205 / S32750 / S32760 / 253MA / 254SMO / 904L / A286 etc.
Standards	GB, AISI, ASTM, DIN, EN, JIS, GOST
Process / Technology	Cold Rolled / Hot Rolled / Custom Slitting
Thickness	0.1 – 16 mm
Width	20 – 2000 mm (customizable)
Length / Coil OD	3 mm – 2500 mm or per customer request
Surface Finish	2B, Bright Annealed (BA), Dull Polish (DP), Hot Rolled (HR), No.1, HL, No.4, No.8, Mirror, Etched, Embossed
Inspection	SGS, TUV, BV, ABS, LR etc.
Application	Oil & Gas, Petroleum, Vessels, Ship Building, Water Treatment, Environmental Protection, etc.

Finish	Description	Typical Thickness (mm)	Available Widths (mm)
2B	Smooth, reflective grey sheen. Most widely used.	0.55	914, 1219
BA	Bright annealed mirror-like finish.	0.70	914, 1219
DP	Brushed, non-reflective, easy to clean.	0.90	750, 914, 1219
HR	Scaled, hot-rolled finish.	1.20	750–1500
No.1	Pickled, white surface after hot-rolling.	1.50	914, 1219, 1500
HL	Continuous linear polish finish.	1.60	914, 1219, 1500
No.4	Polished with 150–180 grit.	2.00	914, 1219, 1500
No.8	Mirror finish, highly reflective.	2.50	914, 1219, 1500

Possible styles

309 stainless steel coils are available in a variety of custom-cut widths and lengths to meet diverse application needs. Customers can choose between cold-rolled for precision use or hot-rolled for structural and thermal systems. Available finishes include 2B for fabrication, No.1 for industrial strength, and BA for reflective use. Each coil can be slit, leveled, or edge-trimmed based on your exact project needs.