Stainless Steel 304/304L Angles and Channels
Rose Metal Industries is a well-established manufacturer, stockist and global exporter of Stainless Steel 304/304L Angles and Channels, supplying premium structural stainless-steel profiles to domestic and international industries. With a strong presence across Tamilnadu, Andhra Pradesh, Karnataka, Telangana, Puducherry (Pondicherry) and the Andaman & Nicobar Islands, the company ensures seamless delivery of high-quality SS structural materials for construction, fabrication, marine, and architectural applications..
Our SS 304/304L Angles and Channels are manufactured in accordance with globally recognized standards such as ASTM, EN, and JIS to ensure durability and long service life. Grade 304 is known for its excellent corrosion resistance, high tensile strength, and versatility, while Grade 304L with lower carbon content provides superior weldability and reduced carbide precipitation during welding. This makes 304/304L angles and channels suitable for structural frameworks, industrial platforms, bracing, supports, and equipment fabrication..
Rose Metal Industries maintains a wide range of Equal Angles, Unequal Angles, U-Channels and C-Channels available in hot-rolled, cold-drawn, and polished conditions. These structural profiles are supplied in various thicknesses and dimensions to match specific industry requirements, including heavy-duty construction sites, marine infrastructure, industrial fabrication units, and architectural projects. Our distribution network covers key cities including Chennai, Bengaluru, Hyderabad, Visakhapatnam, Mysuru and Puducherry, ensuring timely and reliable supply..
The chemical composition of Stainless Steel 304/304L includes an optimum balance of chromium (18–20%) and nickel (8–12%), providing strong resistance against atmospheric corrosion, moisture, industrial chemicals, and mildly aggressive environments. The lower carbon variant, 304L, is particularly beneficial for welded structural applications, minimizing the chances of intergranular corrosion. This makes our stainless-steel angles and channels ideal for long-term installations in humid, coastal and marine regions like Tamilnadu and the Andaman & Nicobar Islands..
Specifications
| Product | Stainless Steel 304 / 304L Angles & Channels |
|---|---|
| Grade | SS 304 (UNS S30400) / SS 304L (UNS S30403) |
| Standard / Spec (if applicable) | AISI / ASTM-based typical composition standards |
| Profile Type | Equal / Unequal Angles, U-Channels, C-Channels, Structural Profiles |
| Forms | Hot-rolled, Cold-finished, Polished / Pickled (on request) |
| Size Range (typical) | Angles: from light gauge up to heavy structural; Channels: small to heavy-duty sections (custom sizes available) |
| Finish Options | Mill finish, Pickled & Passivated, Polished, Custom finish per project need |
Chemical Composition (Typical wt%)
| Element | 304 | 304L |
|---|---|---|
| Carbon (C) | 0.08% max | 0.03% max |
| Chromium (Cr) | 18.0 – 20.0% | 18.0 – 20.0% |
| Nickel (Ni) | 8.0 – 12.0% | 8.0 – 12.0% |
| Manganese (Mn) | ≤ 2.0% | ≤ 2.0% |
| Silicon (Si) | ≤ 1.0% | ≤ 1.0% |
| Phosphorus (P) | ≤ 0.045% | ≤ 0.045% |
| Sulfur (S) | ≤ 0.03% | ≤ 0.03% |
Mechanical Properties (Typical)
| Property | Approximate Value |
|---|---|
| Tensile Strength (Rm) | ≈ 500 – 520 MPa |
| Yield Strength (Re) | ≈ 200 – 205 MPa |
| Elongation | ≥ 40% (may vary with profile size and finish) |
| Hardness | Typical: ≤ 95 HRB |
Equivalent Grades / Cross References
| Standard / Spec System | Equivalent Grade |
|---|---|
| AISI / UNS | 304 → S30400, 304L → S30403 |
| EN / WNR / DIN | 304 → 1.4301, 304L → 1.4307 |
| JIS | 304 → SUS 304, 304L → SUS 304L |
Dimension Chart — Example Profiles
| Profile Type | Common Size / Section | Remarks |
|---|---|---|
| Equal Angle | 25×25×3 mm up to 150×150×12 mm | Light to heavy structural use |
| Unequal Angle | 40×25×5 mm up to 200×150×12 mm | Custom structural frames and supports |
| C-Channel / U-Channel | 50×25 mm up to 200×75 mm (web × flange) with thickness 5–12 mm | Structural, supports, racks, architectural use |
Applications
- Structural frameworks and supports in industrial buildings
- Architectural frameworks, railings, façades and decorative structures
- Marine, coastal and offshore installations (especially useful for coastal regions like Tamilnadu & Andaman & Nicobar Islands)
- Platforms, staircases, ladders, handrails and safety structures
- Racks, storage systems, furniture frames, HVAC supports
- Chemical plant structures, food processing plant supports, water treatment plant frameworks
WMechanically, SS 304/304L Angles and Channels deliver excellent performance with a tensile strength of around 515 MPa and yield strength of approximately 205 MPa, making them suitable for medium to heavy load-bearing applications. Their high elongation and structural stability allow them to perform reliably under mechanical stress, vibration and dynamic loading. These properties make them widely used in industrial sheds, machinery frames, storage systems, automobile racks, and plant structures across South India and global markets..
As a trusted supplier and exporter, Rose Metal Industries provides Stainless Steel 304/304L Angles and Channels to countries across the Middle East, Europe, Africa and Southeast Asia, offering customized lengths, finishes and structural profiles as per project needs. With strict quality control, Mill Test Certificates (MTC), third-party inspection and export-grade packaging, we ensure that customers receive products of the highest standards. Our commitment to quality, reliability and customer-focused service makes us one of the preferred structural stainless steel suppliers in India and worldwide.
Frequently Asked Questions (FAQ)
Q1: What is the difference between SS 304 and 304L for angles and channels?
A: The main difference is carbon content — 304L has lower carbon (≤ 0.03%) which reduces carbide precipitation after welding, making it more suitable for welded structural assemblies. Both grades offer excellent corrosion resistance and mechanical strength, but 304L gives better performance in welded or fabricated structures.
Q2: Do you supply stainless steel structural profiles across South India and islands?
A: Yes — Rose Metal Industries supplies SS 304/304L angles and channels across Tamilnadu, Andhra Pradesh, Karnataka, Telangana, Puducherry and remote regions including the Andaman & Nicobar Islands. We also handle export orders globally with full documentation.
Q3: Are custom sizes and special profiles available?
A: Yes — we can deliver custom sizes, unequal angles, special channel sections and custom-fabricated profiles as per your project requirements.
Q4: Do you provide Mill Test Certificates (MTC) and quality documentation for export?
A: Absolutely — for all shipments we supply MTCs (typically EN 10204/3.1 equivalent), chemical and mechanical test reports. Third-party inspection can be arranged if required by the buyer.
Q5: Are SS 304/304L angles & channels suitable for coastal or marine environments?
A: Yes — these grades offer good corrosion resistance, especially when polished or passivated. They are widely used in marine & coastal installations, particularly in coastal states like Tamilnadu and island territories such as the Andaman & Nicobar Islands. Proper surface treatment and maintenance further enhance longevity.