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Kunj Sheets and Plates is a well-respected manufacturer and supplier of Stainless Steel 321H Channels based in Chennai, India. SS 321H is the high-carbon variant of 321 stainless steel, specifically crafted to enhance high-temperature strength and creep resistance. With titanium added for stabilization, SS 321H boasts remarkable resistance to intergranular corrosion and oxidation, particularly after welding or extended exposure to high temperatures. Our 321H stainless steel channels are designed to meet the rigorous demands of structural and industrial applications, and we offer them in a range of sizes and specifications. Kunj is committed to delivering quality, reliability, and performance across various sectors, including aerospace, petrochemical, and thermal processing industries.
Stainless Steel 321H Channels primarily consist of 17–19% chromium, 9–12% nickel, and titanium content that is at least five times the carbon content. The elevated carbon levels (around 0.04–0.10%) boost creep resistance and high-temperature strength. SS 321H provides a tensile strength of about 515 MPa and a yield strength of 205 MPa, along with good elongation and toughness. It maintains excellent structural integrity at temperatures reaching up to 900°C and offers solid resistance to oxidation and stress corrosion cracking, making it an excellent choice for pressure-bearing and welded components that face extreme heat.
| Standard | ASTM A276, ASTM A479 / ASME SA276, ASME SA479 |
| Condition | HRAP |
| Size Range | Base: 80 to 150 mm Side: 40 to 75 mm |
| Thickness | 5 to 6 mm (depending on size) |
| Grades | 304, 316 |
| Processing | Bar cutting |
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni |
|---|---|---|---|---|---|---|---|---|
| SS 304 | 0.08 max | 2 max | 0.75 max | 0.045 max | 0.030 max | 18 – 20 | – | 8 – 11 |
| SS 304L | 0.035 max | 2.0 max | 1.0 max | 0.045 max | 0.03 max | 18 – 20 | – | 8 – 13 |
| SS 316 | 0.08 max | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 16.00 – 18.00 | 2.00 – 3.00 | 11.00 – 14.00 |
| SS 316L | 0.035 max | 2.0 max | 1.0 max | 0.045 max | 1.0 max | 16.00 – 18.00 | 16.00 – 18.00 | 10.00 – 14.00 |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
|---|---|---|---|---|
| 8.0 g/cm3 | 1400 °C (2550 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Kunj Sheets and Plates based in Chennai, India, is a leading supplier and stockist of high-quality metal products, including Sheets, Plates, Coils, Foils, Angles, Channels, Circles, and Slitting Coils, all offered with exceptional service and tailored to meet our customers specific requirements. With a focus on delivering superior products, we cater to a wide range of industries, providing reliable solutions for diverse applications. Our extensive inventory includes Known for our unique finishing techniques and commitment to quality. We are dedicated to ensuring customer satisfaction through dependable service and top-notch products.
Yes, we offer custom sizes for Stainless Steel 321H Channel to meet specific project needs. Our team at Kunj Sheets and Plates is dedicated to providing tailored solutions for all your requirements. For more details, contact us at sales@kunjsheetsandplates.co.in.
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN |
|---|---|---|---|---|---|---|---|
| SS 304 | 1.4301 | S30400 | SUS 304 | 304S31 | 08Х18Н10 | Z7CN18‐09 | X5CrNi18-10 |
| SS 304L | 1.4306 / 1.4307 | S30403 | SUS 304L | – | 03Х18Н11 | Z3CN18‐10 | X2CrNi18-9 / X2CrNi19-11 |
| SS 316 | 1.4401 / 1.4436 | S31600 | SUS 316 | 316S31 / 316S33 | – | Z7CND17‐11‐02 | X5CrNiMo17-12-2 / X3CrNiMo17-13-3 |
| SS 316L | 1.4404 / 1.4435 | S31603 | SUS 316L | 316S11 / 316S13 | Z3CND17‐11‐02 / Z3CND18‐14‐03 | X2CrNiMo17-12-2 / X2CrNiMo18-14-3 |
| Description | Process | G kg/m | h mm | b mm | tw mm | tf mm | r1 mm | r2 mm |
|---|---|---|---|---|---|---|---|---|
| C 50X25X5X6 | Hot Rolled | 3.95 | 50 | 25 | 5 | 6 | 6 | 3 |
| C 75X40X5X7 | Hot Rolled/Laser | 6.95 | 75 | 40 | 5 | 7 | 8 | 4 |
| C 100X50X5X7.5 | Hot Rolled/Laser | 9.37 | 100 | 50 | 5 | 7.5 | 8 | 4 |
| C 125X65X6X8 | Hot Rolled/Laser | 13.4 | 125 | 65 | 6 | 8 | 8 | 4 |
| C 150X75X6.5X10 | Hot Rolled/Laser | 18.62 | 150 | 75 | 6.5 | 10 | 10 | 5 |
| C 150X75X9X12.5 | Hot Rolled/Laser | 24.01 | 150 | 75 | 9 | 12.5 | 5 | 1 |
| C 180X75X7X10.5 | Hot Rolled/Laser | 21.52 | 180 | 75 | 7 | 10 | 2 | 1 |
| C 200X80X7.5X11 | Hot Rolled/Laser | 24.77 | 200 | 80 | 7.5 | 11 | 2 | 1 |
| C 200X90X8X13.5 | Hot Rolled/Laser | 30.53 | 200 | 90 | 8 | 13.5 | 2 | 1 |
| C 230X80X8X12 | Hot Rolled/Laser | 28.56 | 230 | 80 | 8 | 12 | 2 | 1 |
| C 250X90X9X13 | Hot Rolled/Laser | 34.86 | 250 | 90 | 9 | 13 | 2 | 1 |
| C 250X90X11X14.5 | Hot Rolled/Laser | 40.34 | 250 | 90 | 11 | 14.5 | 2 | 1 |
| C 300X90X9X12 | Hot Rolled/Laser | 37.17 | 300 | 90 | 9 | 12 | 2 | 1 |
| C 300X90X10X15.5 | Hot Rolled/Laser | 43.85 | 300 | 90 | 10 | 15.5 | 2 | 1 |
| C 300X90X12X16 | Hot Rolled/Laser | 48.78 | 300 | 90 | 12 | 16 | 2 | 1 |
| C 380X100X10.5X16 | Hot Rolled/Laser | 54.85 | 380 | 100 | 10.5 | 16 | 2 | 1 |
| C 380X100X13X16.5 | Hot Rolled/Laser | 62.5 | 380 | 100 | 13 | 16.5 | 2 | 1 |
| C 380X100X13X20 | Hot Rolled/Laser | 67.37 | 380 | 100 | 13 | 20 | 2 | 1 |
These Stainless Steel 321H Channels find extensive use in high-temperature structural applications, including exhaust systems, boiler casings, furnace components, and heat exchangers. Their resistance to oxidation and intergranular corrosion makes them perfect for chemical processing equipment, petrochemical plants, and refineries. SS 321H is also employed in aerospace components, thermal oxidizers, and pharmaceutical production systems where maintaining structural stability under heat and pressure is crucial. These channels are especially prized in industries that require frequent welding and can withstand sustained high temperatures.
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