


Stainless steel flat bar is a versatile, rectangular-section product widely used in construction, manufacturing, and industrial applications. It is made by hot-rolling or cold-drawing stainless steel billets, offering excellent strength, durability, and corrosion resistance.
Flat bars are available in various grades, surface finishes, and dimensions to suit different requirements, ranging from structural support to decorative trims.
Specification | Details |
---|---|
Material Grades | 304 / 304L / 316 / 316L / 201 / 430 or custom |
Manufacturing Process | Hot Rolled / Cold Drawn or custom |
Thickness (T) | 3mm – 20mm or custom |
Width (W) | 20mm – 200mm or custom |
Length | 2000mm – 6000mm (customizable) |
Tolerance | ASTM A484 standard or customized |
Surface Finish | Pickled, Polished, Brushed, Black (mill finish) |
Tensile Strength | ≥520 MPa |
Yield Strength | ≥205 MPa |
Elongation | ≥40% |
Standards | ASTM A276 / A484, JIS G4303, EN 10088 |
Packaging | PVC Wrapping + Woven Bag + Wooden Case |
English Name | China GB/T | Japan JIS | USA AISI/UNS | Europe EN/DIN |
---|---|---|---|---|
Austenitic Stainless Steel 201 | 0Cr17Mn6Ni5N | SUS201 | AISI 201 / UNS S20100 | EN 1.4372 |
Austenitic Stainless Steel 202 | 0Cr18Mn9Ni6N | SUS202 | AISI 202 / UNS S20200 | EN 1.4122 |
Austenitic Stainless Steel 301 | 06Cr17Ni7 | SUS301 | AISI 301 / UNS S30100 | EN 1.4310 |
Austenitic Stainless Steel 303 | 0Cr17Ni13Mo | SUS303 | AISI 303 / UNS S30300 | EN 1.4305 |
Austenitic Stainless Steel 304 | 0Cr18Ni9 | SUS304 | AISI 304 / UNS S30400 | EN 1.4301 |
Austenitic Stainless Steel 304L | 06Cr19Ni10 | SUS304L | AISI 304L / UNS S30403 | EN 1.4307 |
Austenitic Stainless Steel 305 | 0Cr17Ni14Cu2 | SUS305 | AISI 305 / UNS S30500 | EN 1.4303 |
Austenitic Stainless Steel 309S | 00Cr23Ni13 | SUS309S | AISI 309S / UNS S30908 | EN 1.4828 |
Austenitic Stainless Steel 310S | 0Cr25Ni20 | SUS310S | AISI 310S / UNS S31008 | EN 1.4845 |
Austenitic Stainless Steel 316 | 0Cr17Ni12Mo2 | SUS316 | AISI 316 / UNS S31600 | EN 1.4401 |
Austenitic Stainless Steel 316L | 00Cr17Ni12Mo2 | SUS316L | AISI 316L / UNS S31603 | EN 1.4404 |
Austenitic Stainless Steel 316Ti | 00Cr17Ni12Mo2Ti | SUS316Ti | AISI 316Ti / UNS S31635 | EN 1.4571 |
Austenitic Stainless Steel 317 | 00Cr19Ni13Mo3 | SUS317 | AISI 317 / UNS S31700 | EN 1.4438 |
Austenitic Stainless Steel 321 | 00Cr19Ni10Ti | SUS321 | AISI 321 / UNS S32100 | EN 1.4541 |
Austenitic Stainless Steel 347 | 0Cr19Ni12Mo2Ti | SUS347 | AISI 347 / UNS S34700 | EN 1.4550 |
Austenitic Stainless Steel 904L | ZG0Cr19Ni25Mo4Cu2 | SUS904L | AISI 904L / UNS N08904 | EN 1.4539 |
Austenitic Stainless Steel 254SMO | ZG17Cr20Ni14Mo3Cu | SUS312L1 | AISI 254SMO / UNS S31254 | EN 1.4547 |
Ferritic Stainless Steel 409 | 0Cr11Mo | SUS409 | AISI 409 / UNS S40900 | EN 1.4512 |
Martensitic Stainless Steel 410 | 1Cr13 | SUS410 | AISI 410 / UNS S41000 | EN 1.4006 |
Martensitic Stainless Steel 420 | 0Cr17Ni4Cu4Nb | SUS420 | AISI 420 / UNS S42000 | EN 1.4021 |
Ferritic Stainless Steel 430 | 0Cr17 | SUS430 | AISI 430 / UNS S43000 | EN 1.4016 |
Ferritic Stainless Steel 439 | 0Cr18Mn11Nb | SUS439 | AISI 439 / UNS S43900 | EN 1.4517 |
Ferritic Stainless Steel 444 | 0Cr18Mn13Si | SUS444 | AISI 444 / UNS S44400 | EN 1.4521 |
Ferritic Stainless Steel 446 | 0Cr25Mo4N | SUS446 | AISI 446 / UNS S44600 | EN 1.4762 |
Martensitic Stainless Steel 416 | 0Cr13MoS4 | SUS416 | AISI 416 / UNS S41600 | EN 1.4005 |
Duplex Stainless Steel 2205 | ZG2CrNiMo | SUS329J4L | UNS S32205 | EN 1.4462 |
Duplex Stainless Steel 2304 | ZG0Cr23Ni5MoN | SUS329J1L | UNS S32304 | EN 1.4362 |
Precipitation Hardening Stainless 17-4PH | ZG0Cr17Ni4Cu4Nb | SUS630 | UNS S17400 | EN 1.4542 |
Martensitic Stainless Steel 431 | ZG1Cr17Ni2Mo | SUS431 | AISI 431 / UNS S43100 | EN 1.4057 |
Structural Engineering: Used in bridges, building frameworks, support beams, and heavy-duty construction components requiring high strength and durability.
Industrial Fabrication: Ideal for manufacturing machinery bases, tool frames, conveyor systems, and custom-engineered parts.
Architectural Decoration: Polished flat bars are widely used in handrails, facade trims, window frames, and modern interior fittings.
Food & Pharmaceutical Equipment: Suitable for hygienic work surfaces, processing tables, and cleanroom structures due to excellent corrosion resistance.
Automotive & Marine Industry: Commonly used for vehicle trim parts, boat fittings, and engine mounting components.
Furniture & Fixtures: Brushed flat bars provide a sleek, modern look for table frames, shelving supports, and display fixtures.
General Manufacturing: Utilized in jigs, fixtures, welded assemblies, and other industrial applications.
Protective Packaging: Bundled with steel straps, wrapped in waterproof film, and edge-protected.
Export Crating: Wooden pallets or steel frames for secure international shipping.
Logistics Options: Sea (FCL/LCL), air, or land freight available globally.
Storage: Store in a dry, ventilated area; avoid contact with corrosive substances.
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FAQ's
Do you provide product samples?
We can accept sample orders. Samples can be ordered by emailing your dedicated customer service representative.
What types of steel products do you offer?
We supply stainless steel sheets, coils, pipes, bars, profiles, as well as carbon steel and alloy steel materials in various grades and specifications.
Do you provide custom processing based on drawings
Yes. We support custom cutting, bending, flattening, polishing, and laser processing according to your drawings.
What is your minimum order quantity (MOQ)?
For standard stock items, small quantities are accepted. For customized products, MOQ usually starts from 1 ton. Please contact our sales team for specific details.
How long is your delivery time?
Standard products are typically delivered within 7working days. Custom orders generally require 7–15 working days depending on the specifications.
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Production
Scaled
Different factories support the production, forging and other process sites of different steel materials.

What You Need
Advanced & Modern
We have the advanced processing equipment, modernized physical and chemical testing center, opening flat, cutting, surface treatment, molding, sheet metal, welding. machining and 8 big processing platform.

Standardized
Export Packing
Waterproof paper, and steel strip packed. Seaworthy Package.Suit for all kinds of transport,or as required
Packing Standard export packing for stainless steel sheet.