Stainless Steel 316/316L Flat Bars
Rose Metal Industries is a manufacturer, stockist and exporter specializing in high-quality Stainless Steel 316 and 316L flat bars. Our production adheres to international standards and strict quality control to deliver flat bars that meet the demands of marine, chemical, pharmaceutical, food processing and architectural sectors. With a focus on corrosion resistance and dimensional accuracy, our flat bars are suitable for both heavy industrial use and precision applications..
As a domestic supplier and export house, Rose Metal Industries maintains inventory hubs and distribution networks across key Indian regions — Tamilnadu, Andhra Pradesh, Karnataka, Telangana, Puducherry (Pondicherry) and the Andaman & Nicobar Islands — ensuring timely dispatch to local customers and smooth logistics for overseas shipments. We support customised cut-to-length, surface finishes (hot-rolled, pickled and passivated, or cold-finished) and packing options tailored for export markets.
SS 316 is an austenitic stainless steel containing molybdenum which improves resistance to pitting and crevice corrosion in chloride environments — making it ideal for coastal regions and offshore equipment. The low-carbon variant, 316L, offers improved weldability and reduced risk of sensitization; this is commonly specified where post-weld annealing is impractical or when additional corrosion resistance after welding is required.
Rose Metal Industries supplies 316 / 316L flat bars in compliance with common specifications such as ASTM A276 (bars), ASTM A479 (where applicable), EN 10088, JIS and other customer-specified standards. Every batch is traceable with mill certificates (3.1/EN10204) and we perform chemical and mechanical testing to ensure material conformity before dispatch
Specifications
| Property | Typical Specification / Standard |
|---|---|
| Material Grades | SS 316 (UNS S31600 / EN 1.4401), SS 316L (UNS S31603 / EN 1.4404) |
| Standards | ASTM A276, ASTM A479 (where applicable), EN 10088, JIS G4305 |
| Condition | Hot Rolled, Cold Rolled, Pickled & Passivated, Bright Finished |
| Certification | Mill Test Certificate EN 10204 3.1 / 2.2 on request |
Chemical Composition (Typical ranges)
Note: Values shown are typical ranges for 316 and 316L. Always refer to the mill certificate for batch-specific values.
| Element | 316 (wt%) | 316L (wt%) |
|---|---|---|
| Carbon (C) | ≤ 0.08 | ≤ 0.03 |
| Manganese (Mn) | ≤ 2.00 | ≤ 2.00 |
| Phosphorus (P) | ≤ 0.045 | ≤ 0.045 |
| Sulfur (S) | ≤ 0.03 | ≤ 0.03 |
| Silicon (Si) | ≤ 1.00 | ≤ 1.00 |
| Chromium (Cr) | 16.0 – 18.0 | 16.0 – 18.0 |
| Nickel (Ni) | 10.0 – 14.0 | 10.0 – 14.0 |
| Molybdenum (Mo) | 2.0 – 3.0 | 2.0 – 3.0 |
| Nitrogen (N) | ≤ 0.10 | ≤ 0.10 |
| Iron (Fe) | Balance | Balance |
Mechanical Properties (Typical)
| Property | 316 | 316L |
|---|---|---|
| Tensile Strength (min) | ~515 MPa (75 ksi) | ~485 MPa (70 ksi) |
| Yield Strength (0.2% offset) | ~205 MPa (30 ksi) | ~170 MPa (25 ksi) |
| Elongation (in 50 mm) | ≥ 40% | ≥ 40% |
| Hardness (Brinell) | ≤ 200 HB | ≤ 200 HB |
Equivalent Grades / Cross Reference
| Common Name | UNS | EN / Werkstoff | JIS |
|---|---|---|---|
| 316 | S31600 | 1.4401 | SUS 316 |
| 316L | S31603 | 1.4404 | SUS 316L |
Dimension Chart — Flat Bars (Typical Range)
Rose Metal Industries provides standard and custom dimensions. Common sizes are listed below; custom widths and thicknesses available on request.
| Thickness (mm) | Width (mm) | Standard Lengths (mm) | Notes |
|---|---|---|---|
| 3 mm | 10 — 100 mm | 1000 / 2000 / 3000 / custom | Common for light fabrication |
| 4 mm | 10 — 150 mm | 1000 / 2000 / 3000 / custom | Structural & architectural use |
| 6 mm | 12 — 200 mm | 1000 / 2000 / 3000 / custom | General engineering |
| 8 mm | 20 — 250 mm | 1000 / 2000 / 6000 / custom | Heavy fabrication |
| 10 mm | 25 — 300 mm | 1000 / 2000 / 6000 / custom | Load-bearing components |
Applications
- Marine and offshore components, ship fittings and railings — suitable for coastal regions and islands including shipments to the Andaman & Nicobar Islands.
- Chemical processing equipment, heat exchangers and piping supports where chloride resistance is required.
- Food and pharmaceutical processing machinery — due to corrosion resistance and ease of cleaning (316L preferred when welding is heavy).
- Architectural cladding, handrails and façade elements — widely supplied to projects in Tamilnadu, Andhra Pradesh, Karnataka, Telangana and Puducherry.
- Manufacture of fasteners, flanges and precision components for OEMs that source globally.
We serve both domestic projects (industrial plants, marine infrastructure, architectural facades and fabrication shops in the listed Indian states and territories) and global buyers seeking reliable SS 316/316L flat bars — positioning Rose Metal Industries as a trusted global keyword-friendly supplier for “316 stainless flat bar exporter”, “marine grade flat bar supplier” and similar search intents
Typical surface finishes offered include mill (hot-rolled), bright cold-rolled, and pickled & passivated finishes. Custom machining, straightening and laser-cut lengths are available on request to support value-added supply for OEMs and fabricators.
Frequently Asked Questions (FAQ)
Q1: What is the difference between Stainless Steel 316 and 316L Flat Bars?
A: 316L contains a lower carbon content (≤0.03%) compared to 316, which improves weldability and minimizes sensitization during welding. Both grades offer excellent corrosion resistance, but 316L is preferred for heavy welding applications and corrosive marine environments.
Q2: Do you provide Mill Test Certificates (MTC) for 316/316L Flat Bars?
A: Yes — Rose Metal Industries provides MTCs (EN 10204/3.1) with every order and can arrange third-party inspections, PMI testing and chemical analysis based on customer requirements.
Q3: What standards do your 316/316L Flat Bars comply with?
A: Our flat bars are manufactured and supplied as per ASTM A276, ASTM A479, EN 10088 and equivalent global standards, depending on customer and export destination requirements.
Q4: Can you supply custom sizes, lengths and surface finishes?
A: Yes — we offer cut-to-length material, customized widths/thicknesses, bright/HR/pickled & passivated finishes, and special tolerances. Custom export packing is also available.
Q5: Are 316 / 316L Flat Bars suitable for marine and coastal regions?
A: Absolutely — the molybdenum content in 316/316L provides superior resistance to chlorides and saltwater, making them ideal for coastal states like Tamilnadu, Karnataka, Andhra Pradesh, Telangana, Puducherry and regions such as the Andaman & Nicobar Islands.