Xi'an Dongmeng Group Co., Ltd. is one of the most reliable manufacturers and suppliers of polished stainless steel flat bar in China, also supports customized service. With abundant experience, we warmly welcome you to wholesale cheap products in stock here and get free sample from our factory. For price consultation, contact us.
Polished Stainless Steel Flat Bars (also called stainless steel flat strips, mirror finish bars, SS flat bars) are precision-rolled, high-quality flat bars with an exceptional polished surface.
Widely used in architectural decoration, furniture, handrails, machinery, automotive, and industrial equipment, these polished flat bars are made from 304, 304L, 316, 316L, 430 grades and comply with ASTM, EN, JIS, DIN standards. They offer corrosion resistance, aesthetic appeal, and high dimensional accuracy, ideal for B2B export and industrial projects.
01
High Quality
02
Advanced Equipment
03
Professional Team
04
Custom Service
Chemical Composition (Typical % by Weight)
| Grade | C | Cr | Ni | Mo | Mn | P | S | Fe |
|---|---|---|---|---|---|---|---|---|
| 304 | ≤0.08 | 18–20 | 8–10.5 | – | ≤2 | ≤0.045 | ≤0.03 | Balance |
| 304L | ≤0.03 | 18–20 | 8–12 | – | ≤2 | ≤0.045 | ≤0.03 | Balance |
| 316 | ≤0.08 | 16–18 | 10–14 | 2–3 | ≤2 | ≤0.045 | ≤0.03 | Balance |
| 316L | ≤0.03 | 16–18 | 10–14 | 2–3 | ≤2 | ≤0.045 | ≤0.03 | Balance |
| 430 | ≤0.12 | 16–18 | – | – | ≤1 | ≤0.04 | ≤0.03 | Balance |
Mechanical Properties (Typical)
| Grade | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Hardness (HB) |
|---|---|---|---|---|
| 304 / 304L | 515–720 | 205–310 | 40 | 170–200 |
| 316 / 316L | 515–720 | 205–310 | 40 | 170–200 |
| 430 | 450–600 | 205–450 | 22 | 180–220 |
Available Specifications (Metric + Imperial)
| Form | Grade | Thickness / Height (mm) | Thickness / Height (inch) | Width (mm) | Width (inch) | Length (m) | Surface Finish | Notes |
|---|---|---|---|---|---|---|---|---|
| Flat Bar | 304, 304L | 3 – 50 | 0.12 – 1.97 | 10 – 200 | 0.39 – 7.87 | 6 – 12 | Mirror (BA) | Standard polished flat bar |
| Flat Bar | 316, 316L | 3 – 50 | 0.12 – 1.97 | 10 – 200 | 0.39 – 7.87 | 6 – 12 | Mirror (BA) | Corrosion-resistant polished bar |
| Cut-to-Length | 304, 304L, 316 | 3 – 50 | 0.12 – 1.97 | 10 – 200 | 0.39 – 7.87 | 1 – 6 | Mirror (BA) | Custom lengths for fabrication and construction |
Inspection & Quality Assurance
Chemical composition verification
Mechanical property testing (tensile, yield, elongation, hardness)
Dimensional inspection (thickness, width, length, flatness)
Surface inspection for scratches, polish quality, reflectivity
Third-party inspection: SGS / BV / TUV available
MTC (EN10204 3.1 / 3.2)
Looking for premium polished stainless steel flat bars for your project?
We provide material selection, specification matching, cutting, fabrication, and fast global shipping.
Our address
Room 4107, Runfeng Building, Sanqiao New Street, Weiyang District, Xi'an City, Shaanxi Province
Phone Number
+86 15769214734
FAQ
Q1: What grades are available for polished stainless steel flat bars?
Standard grades: 304, 304L, 316, 316L, 430. Special grades available on request.
Q2: What surface finish is offered?
Mirror (BA / Bright Annealed) is standard.
Custom finishes or electro-polished options can be supplied.
Q3: What size ranges are available?
Thickness / Height: 3 – 50 mm
Width: 10 – 200 mm
Length: 6 – 12 m standard, cut-to-length available
Q4: Can polished flat bars be used in food, industrial, or outdoor applications?
Yes. 304 / 316 / 316L grades are suitable for food, beverage, sanitary, and corrosive environments.
Q5: Are custom lengths and pre-cut bars available?
Yes. We provide cut-to-length flat bars, polished edges, and custom dimensions according to your project needs.
Q6: Do you provide certificates and inspection reports?
Yes. MTC 3.1 / 3.2, chemical & mechanical test reports, and third-party inspections (SGS / BV / TUV) are available.
Q7: What is the typical delivery time?
Standard polished bars: 5–12 days
Cut-to-length or custom orders: 7–20 days
Large or project-specific orders: negotiable
Hot Tags: polished stainless steel flat bar, China polished stainless steel flat bar manufacturers, suppliers, factory, 440C Stainless Steel
