Leading Stainless Steel Flat Bar Manufacturer in China
SparkX supplies stainless steel flat bars for welded structures, frames, brackets, machined components and general fabrication. Standard supply ranges include thicknesses of 3–60 mm, widths of 10–200 mm and cut lengths of 1–6 m.
Available grades include 304/304L, 316/316L, 321, 430, 201/202 and duplex 2205. Depending on the dimensional and surface requirements, flat bars can be supplied in hot-rolled and pickled, cold-drawn, bright or precision-finished conditions.
Cut-to-length, deburring, chamfering and edge machining can be provided for parts that require additional preparation before welding, assembly or CNC machining.
Additional Grades for Stainless Steel Flat Bars
If you have any other needs or require customization, please feel free to contact us.
General-purpose austenitic stainless steel with good formability and weldability. 304L has a lower carbon content and is preferred when welded components require better resistance to sensitization.
Molybdenum improves resistance to pitting in chloride-containing environments. 316L is commonly used for welded fabrication, chemical equipment and marine-related components where 304 provides insufficient corrosion resistance.
Economical austenitic flats with good strength, used for indoor processing and moderate corrosion environments.
Economical ferritic flat bar and magnetic with good corrosion resistance, widely used for trim, appliances and general fabrication.
Titanium-stabilized austenitic flat bar and very suitable for high temperature welding, can resist intergranular corrosion after welding and heat exposure.
Dimensional Tolerances
SparkX provides a square edge(as-rooled/drawn) or a milled edge to remove burrs and take sides clean and parallel. Width and thickness follow the ASTM A276/A479 and A484 or EN 10088-3. Also meets ISO 286 H11/H10 standards if you need. Verified straightness is ≤1.0mm/m, and we can agree on ≤0.5 mm/m for precision frames.
Flat Bar Processing Routes and Surface Finish
Hot-rolled and pickled flat bar is suitable for welded structures, supports, frames and general fabrication where tight dimensional tolerances are not the primary requirement.
Cold-drawn or bright flat bar provides better dimensional consistency and a cleaner surface, making it more suitable for precision fabrication and components requiring less subsequent machining.
Machined edges can be used when tighter width tolerance, edge parallelism or cleaner mating surfaces are required for assembly or CNC processing.
If you require a specified surface roughness, grinding or polishing can be added based on the requirements of the final application.
Cut-to-Length Flat Bar
Stainless steel flat bars can be supplied in cut lengths from 1 to 6 m, with tighter cut-length tolerances available according to the cutting method and section size.
If you required SparkX can both provides deburring and end chamfering. Export packaging can include bundled or wooden-case packaging with edge protection to reduce damage during transport.
The main factors are grade, dimensions, processing route, dimensional tolerance, surface finish and order quantity. Cold-drawn or precision-machined flat bars generally require more processing than standard hot-rolled and pickled material.
SparkX typically provides thicknesses from 3–60 mm, widths from 10–200 mm and cut lengths from 1–6 m. Other dimensions can be confirmed according to grade, quantity and processing route.
Hot-rolled and pickled flat bar is always enough for welded structures and general fabrication. Cold-drawn or precision-finished flat bar is more suitable when tighter dimensions, straighter sections or cleaner surfaces are required before machining or assembly.
