Stainless Steel 321 Angles and Channels
Rose Metal Industries is a trusted global Manufacturer, Stockist, and Exporter of premium-quality Stainless Steel 321 Angles and Channels. SS 321 is a titanium-stabilized austenitic stainless steel grade known for its excellent resistance to intergranular corrosion and superior performance at elevated temperatures. Our SS 321 structural products are widely supplied across Tamil Nadu, Andhra Pradesh, Karnataka, Telangana, Puducherry (Pondicherry), Andaman & Nicobar Islands, and major global industrial markets..
Stainless Steel 321 Angles and Channels manufactured by Rose Metal Industries are produced using advanced rolling technology that ensures dimensional accuracy, smooth finish, and excellent mechanical strength. The titanium stabilization prevents carbide precipitation during welding, making these products ideal for high-temperature service environments. We maintain a large stock range, including equal angles, unequal angles, U-channels, and C-channels
These SS 321 structural sections deliver exceptional resistance to oxidation, scaling, and thermal fatigue, making them suitable for aggressive atmospheres and high-heat applications. Rose Metal Industries provides customized sizes, lengths, surface finishes, and tolerance requirements to support structural fabrication, industrial equipment manufacturing, and architectural projects across Southern India and global export destinations..
Our Stainless Steel 321 Angles & Channels are widely used in furnace frameworks, heat exchangers, refinery equipment, pressure vessels, boiler supports, platforms, cable trays, and coastal structural applications. The strong corrosion resistance and temperature stability of SS 321 make it a preferred choice for industries in locations like Chennai, Bengaluru, Hyderabad, Coimbatore, Visakhapatnam, Mysuru, and Port Blair where both industrial growth and coastal climatic conditions demand durable materials.
Specifications & Standards
| Property | Typical / Standard |
|---|---|
| Grades | Stainless Steel 321 (AISI 321 / EN 1.4541 / UNS S32100) |
| Standards | ASTM A276, ASTM A479, ASTM A240, ASME SA240, EN 10088 |
| Forms | Angles, Channels, Equal & Unequal Angles, C-Channels, U-Channels |
| Surface Finish | Hot-rolled, pickled, black, polished finish |
| Testing | PMI, mechanical testing, dimensional checking, hardness, MTC EN 10204/3.1 |
Chemical Composition (typical ranges)
| Element | SS 321 (wt %) |
|---|---|
| Carbon (C) | ≤ 0.08 |
| Manganese (Mn) | ≤ 2.00 |
| Silicon (Si) | ≤ 1.00 |
| Phosphorus (P) | ≤ 0.045 |
| Sulfur (S) | ≤ 0.03 |
| Chromium (Cr) | 17.0 – 19.0 |
| Nickel (Ni) | 9.0 – 12.0 |
| Titanium (Ti) | 5 × C min – 0.70 max |
Mechanical Properties (typical)
| Property | Typical Value | Notes |
|---|---|---|
| Tensile Strength (UTS) | 515 MPa min | High-temperature strength |
| Yield Strength (0.2% Proof) | 205 MPa min | Room temperature |
| Elongation | 40% min | Good ductility |
| Hardness | HRB 92 max | Annealed condition |
Equivalent Grades & Designations
| Common Name | ASTM / AISI | EN | UNS |
|---|---|---|---|
| Stainless Steel 321 | AISI 321 | 1.4541 | UNS S32100 |
| Stainless Steel 321H | AISI 321H | 1.4878 | UNS S32109 |
Dimension Chart — Angles & Channels (Common Sizes)
Standard angle & channel sizes offered as per ASTM/EN.
| Product | Size Range | Thickness | Length | Tolerance |
|---|---|---|---|---|
| Equal Angles | 20×20 to 150×150 mm | 3 mm – 12 mm | 3000 – 6000 mm | ASTM A484 |
| Unequal Angles | 40×20 to 200×100 mm | 3 mm – 12 mm | 3000 – 6000 mm | EN 10056 |
| C-Channels | 50×25 to 200×75 mm | 4 mm – 10 mm | 3000 – 6000 mm | ASTM/Custom |
| U-Channels | 40 to 300 mm width | 4 mm – 12 mm | 3000 – 6000 mm | Custom |
Typical Applications
- Furnace frameworks & high-temperature structures
- Heat exchangers & refinery equipment
- Pressure vessels & boiler supports
- Platforms, racks & structural fabrication
- Cable trays & industrial walkways
- Coastal & marine structural applications
With a commitment to quality, reliability, and customer satisfaction, we continue to expand our stainless steel distribution network across South India, including Chennai, Bengaluru, Hyderabad, Tirupati, Mangalore, Belgaum, Nellore, Kakinada, and the Andaman & Nicobar Islands. Whether it's structural support, pressure equipment, architectural projects, or precision engineering components, our Stainless Steel 304/304L Round Bars offer unmatched performance.
Backed by decades of experience and a strong technical workforce, Rose Metal Industries ensures that every Stainless Steel 304 and 304L Round Bar meets the expectations of industries in Tamil Nadu, Andhra Pradesh, Karnataka, Telangana, Puducherry, and the Andaman & Nicobar Islands. Our goal is to provide high-quality stainless steel solutions with superior consistency, competitive pricing, and fast delivery for national and international clients.
Frequently Asked Questions (FAQ)
Q1: What makes Stainless Steel 321 different from 304?
A: SS 321 contains titanium stabilizing elements that prevent carbide precipitation during high-temperature exposure. This makes it superior to 304/304L for continuous service between 450–850°C, especially in thermal and cyclic heating environments.
Q2: Do you provide mill test certificates (MTC) for SS 321 Angles & Channels?
A: Yes — Rose Metal Industries provides MTCs as per EN 10204/3.1, along with optional third-party inspection, PMI testing, chemical composition reports, and mechanical test reports.
Q3: What standards do your SS 321 Angles & Channels comply with?
A: Products are supplied as per ASTM A276, ASTM A479, ASTM A240, and EN 10088 depending on the type (angle, channel) and customer requirement.
Q4: Can you supply custom sizes, shapes, and surface finishes?
A: Yes — we offer custom angle/channel sizes, cut-to-length supply, special tolerances, and optional finishes including hot-rolled, pickled, and polished. Custom fabrication services are also available.
Q5: Is SS 321 suitable for coastal and high-temperature environments?
A: Absolutely. Titanium stabilization makes SS 321 ideal for heat exchangers, refinery equipment, furnace structures, and coastal installations where both high-temperature resistance and corrosion protection are required.