Stainless Steel Flat Bar Supplier

Stainless Steel Flat Bar

Full dimension coverage: width 10‑250 mm, thickness 2‑40 mm for diverse fabrication
Multiple surface finishes: 2B, 8K mirror, HL brushed to meet aesthetic & processing demands
Rich grade options for decoration, marine, chemical and high‑temperature conditions
Stable rectangular profile, ideal for bending, cutting and welding fabrication

Product Overview

Stainless Steel Flat Bar is a solid rectangular stainless steel bar widely used for architectural decoration, mechanical fabrication, petrochemical equipment and water-treatment applications. Manufactured with controlled dimensions, surface quality and material consistency, it provides a reliable stainless steel solution for global industrial buyers.

The product features a rectangular flat profile with width ranging from 10mm to 250mm and thickness from 2mm to 40mm, covering common specifications for flat-bar fabrication.

Multiple surface finishes are available, including 2B hot-rolled pickled surface, 8K mirror finish and HL hairline brushed finish, supporting both industrial processing requirements and visible architectural applications.

With stainless steel grades including 304, 316L, 2205 and 904L, Stainless Steel Flat Bar can be selected according to corrosion environment, temperature conditions and service requirements. It is commonly processed by cutting, bending, punching and welding for customized fabrication.

Stainless Steel Flat Bar

Chemical & Mechanical Property Snapshot

Grade	Equivalent Standard	C (%)	Cr (%)	Ni (%)	Mo (%)	Yield Strength Rp0.2 (MPa)	Tensile Strength Rm (MPa)	Elongation A (%)	Hardness HV
304	1.4301, X5CrNi18-10, SUS304, 06Cr19Ni10	≤0.08	18.00–20.00	8.00–11.00	—	≥205	≥515	≥40	≤200
304L	1.4306, X2CrNi19-11, SUS304L, 022Cr19Ni10	≤0.03	18.00–20.00	8.00–12.00	—	≥170	≥485	≥40	≤200
316	1.4401, X5CrNiMo17-12-2, SUS316, 06Cr17Ni12Mo2	≤0.08	16.00–18.50	10.00–14.00	2.00–3.00	≥205	≥515	≥40	≤210
316L	1.4404, X2CrNiMo17-12-3, SUS316L, 022Cr17Ni12Mo2	≤0.03	16.00–18.50	10.00–14.00	2.00–3.00	≥170	≥485	≥40	≤210
321	1.4541, X6CrNiTi18-10, SUS321, 06Cr18Ni11Ti	≤0.08	17.00–19.00	9.00–12.00	—	≥205	≥515	≥40	≤200
310S	1.4845, X12CrNi25-21, SUS310S, 06Cr25Ni20	≤0.08	24.00–26.00	19.00–22.00	—	≥205	≥515	≥40	≤220
430	1.4016, X6Cr17, SUS430, 10Cr17	≤0.12	16.00–18.00	≤0.75	—	≥205	≥450	≥22	≤180
2205	1.4462, X2CrNiMoN22-5-3, SUS329J3L, 022Cr22Ni5Mo3N	≤0.03	21.00–23.00	4.50–6.50	2.50–3.50	≥450	≥620	≥25	≤290
2507	1.4410, X2CrNiMoN25-7-4, SUS329J4L, 022Cr25Ni7Mo4N	≤0.03	24.00–26.00	6.00–8.00	3.00–5.00	≥550	≥795	≥15	≤310
904L	1.4539, X1NiCrMoCu25-20-5, SUS904L, 015Cr21Ni26Mo5Cu2	≤0.02	19.00–23.00	23.00–28.00	4.00–5.00	≥220	≥490	≥35	≤220
17-4PH	1.4542, X5CrNiCuNb16-4, SUS630, 05Cr17Ni4Cu4Nb	≤0.07	15.50–17.50	3.00–5.00	Cu: 3.00–5.00	≥1100	≥1310	≥10	≥370

Detailed Technical Specifications

Item	Specification
Product Name	Stainless Steel Flat Bar
Material	Stainless Steel
Shape	Rectangular Solid Bar
Width	10mm – 250mm
Thickness	2mm – 40mm
Surface Finish	2B Hot-Rolled Pickled, 8K Mirror, HL Hairline Brushed
Standard Grades	304 / 304L, 316 / 316L, 321, 310S, 430, 2205, 2507, 904L, 17-4PH
Processing Methods	Cutting, Bending, Punching, Welding
Application Fields	Curtain walls, anti-corrosion earthing, cabinet components, pressure vessel flange blanks, water-treatment lining strips
Quality Control	Mill Test Certificate including heat number, chemical composition and mechanical test results
Packing	Secure export packing to prevent scratches, dents and deformation
MOQ	5 Ton
Payment Terms	T/T, L/C at Sight
Delivery Time	7–15 working days after receiving deposit

Size Specification Table

Item	Specification
Profile	Rectangular solid flat bar
Width Range	10 mm, 12 mm, 15 mm, 20 mm, 25 mm, 30 mm, 40 mm, 50 mm, 60 mm, 80 mm, 100 mm, 120 mm, 150 mm, 180 mm, 200 mm, 250 mm
Thickness Range	2 mm, 3 mm, 4 mm, 5 mm, 6 mm, 8 mm, 10 mm, 12 mm, 15 mm, 20 mm, 25 mm, 30 mm, 35 mm, 40 mm
Standard Length	3000 mm, 5800 mm, 6000 mm; custom cut length available
Tolerance	Width tolerance: ±0.3 mm; Thickness tolerance: ±0.2 mm; Length tolerance: +10 / -0 mm
Surface Finish	2B, Hot-Rolled Pickled, 8K Mirror Finish, HL Hairline Brushed Finish
Available Grades	304, 304L, 316, 316L, 321, 310S, 430, 2205, 2507, 904L, 17-4PH

Product Comparison Table

Grade	Standard	Equivalent Grade	Density (g/cm³)	Yield Strength (MPa, Min)	Tensile Strength (MPa, Min)	Elongation (%)	Main Feature	Typical Application
201	GB/T 1220	1Cr17Mn6Ni5N / 1.4372 / SUS201	7.93	275	520	40	Low nickel, cost-effective, moderate corrosion resistance	Decoration, kitchen utensils, indoor brackets
304	GB/T 1220	06Cr19Ni10 / 1.4301 / X5CrNi18-10 / SUS304	7.93	205	515	40	Excellent general corrosion resistance, easy fabrication	Food equipment, construction, chemical pipeline accessories
304L	GB/T 1220	022Cr19Ni10 / 1.4307 / X2CrNi18-9 / SUS304L	7.93	170	485	40	Low carbon, good intergranular corrosion resistance after welding	Welded parts, chemical equipment, pressure vessels
316L	GB/T 1220	022Cr17Ni12Mo2 / 1.4404 / X2CrNiMo17-12-3 / SUS316L	7.98	170	485	40	Contains Mo, superior resistance to chloride corrosion	Marine, saltwater environments, pharmaceutical equipment
309S	GB/T 1220	06Cr23Ni13 / 1.4828 / X15CrNiSi20-12 / SUS309S	7.98	205	515	40	High-temperature oxidation resistance, heat resistant	Furnace parts, high-temperature oven components
2205	GB/T 20878	022Cr22Ni5Mo3N / 1.4462 / X2CrNiMoN22-5-3 / SUS329J3L	7.80	450	620	25	Duplex stainless steel, high strength & chloride corrosion resistance	Oil & gas, seawater desalination, pressure equipment
410	GB/T 1220	12Cr13 / 1.4006 / X12Cr13 / SUS410	7.75	205	440	20	Martensitic, hardenable, moderate corrosion resistance	Pump shafts, valve parts, cutlery
430	GB/T 1220	1Cr17 / 1.4016 / X6Cr17 / SUS430	7.75	205	450	22	Ferritic, good formability, low cost	Household appliances, decorative trim

App Market

Reliable Steel Coil Solutions For Diverse Industrial Applications

Curtain Wall Decorative Strips

Corrosion-Resistant Grounding Flat Steel

Bent Parts for Equipment Enclosures

Product Packaging

Secure Export Packaging For Safe Handling And Delivery

FAQs

What is Stainless Steel Flat Bar used for?

Stainless Steel Flat Bar is commonly used for curtain wall decoration, anti-corrosion earthing, equipment cabinet components, pressure vessel flange blanks and water-treatment lining strips.

What sizes are available for Stainless Steel Flat Bar?

The width range is 10mm to 250mm and thickness range is 2mm to 40mm.

Which surface finishes can be supplied?

Available surfaces include 2B hot-rolled pickled finish, 8K mirror finish and HL hairline brushed finish.

Which stainless steel grades are available?

Grades include 304, 304L, 316, 316L, 321, 310S, 430, 2205, 2507, 904L and 17-4PH.

Can Stainless Steel Flat Bar be processed?

Yes. It supports cutting, bending, punching and welding processes for customized fabrication.

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Stainless Steel Flat Bar Supplier