Stainless Steel 321H Hollow Bar is sourced from a trusted manufacturer and supplier in Safat, Kuwait, providing high-performance hollow bars that are perfect for high-temperature applications and tough industrial settings. This stabilized austenitic stainless steel grade, with its higher carbon content, offers outstanding resistance to oxidation, scaling, and intergranular corrosion. Crafted with precision, these hollow bars feature uniform thickness, smooth surfaces, and reliable mechanical strength. Clients in Kuwait choose Stainless Steel 321H Hollow Bar for its exceptional high-temperature stability, durability, and weldability, making it an ideal option for heat exchangers, refinery equipment, and thermal-processing tasks.
SS 321H hollow bars are composed of chromium (17-19%), nickel (9-12%), and titanium (0.7%), with controlled amounts of carbon (0.04-0.10%), manganese (up to 2%), and silicon (up to 1%). This composition ensures excellent high-temperature strength and resistance to oxidation and corrosion. The mechanical properties include a tensile strength of 515 MPa minimum, yield strength of 205 MPa minimum, and elongation of 40%. The material exhibits excellent toughness and durability, making it suitable for demanding applications in the chemical, aerospace, and thermal processing industries.
| Standard | ASTM A276 / A479, ASME SA276 / A479 |
| Round Bar Size | 3mm~ 800mm |
| Square Bar Size | 4mm* 4mm ~100mm* 100mm |
| Flat Bar Size | 2mm ~ 100mm |
| Hex Bar Size | 2mm ~ 100mm |
| Angle Size | 3mm* 20mm* 20mm~ 12mm* 100mm* 100mm |
| Thickness | 50 mm to 6000 mm Long |
| Length | 1 To 6 Meters, Custom Cut Length |
| Form | Round, Square, Hex(A/F), Rectangle, Billet, Ingot, Forging Etc |
| Grade | C | Mn | Si | P | S | Cr | N | Ni | Ti |
| SS 321h | 0.08 max | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 17.00 – 19.00 | 0.10 max | 9.00 – 12.00 | 5(C+N) – 0.70 max |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 8.0 g/cm3 | 1457 °C (2650 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
| Denstiy lbm/in3 | Coefficient of Thermal Expansion (min/in)-°F | Thermal Conductivity BTU/hr-ft-°F | Specific Heat BTU/lbm -°F | Modules of Elasticity (annealed)2-psi | |
|---|---|---|---|---|---|
| at 68 °F | at 68 – 212°F | at 68 – 1832°F | at 200°F | at 32 – 212°F | in tension (E) |
| 0.286 | 9.2 | 20.5 | 9.3 | 0.12 | 28 x 106 |
SS 321H hollow bars are widely used in industries like aerospace, petrochemical, power generation, and chemical processing. They are preferred for high-temperature applications due to their excellent thermal stability, oxidation resistance, and resistance to stress-induced cracking at elevated temperatures.
SS 321H hollow bars are typically available in diameters ranging from 25mm to 500mm, with tolerances conforming to ASTM or ISO standards. Common surface finishes include annealed, pickled, and polished, catering to various industrial and aesthetic requirements.
Stainless Steel 321H Hollow Bar finds its place in high-temperature and corrosive environments where both stability and strength are crucial. In the petrochemical and refinery industries, it’s commonly used for heat exchanger tubes, furnace components, and high-temperature processing equipment. Power plants rely on it for boiler tubes, superheater parts, and thermal piping systems, thanks to its resistance to creep and scaling. In the chemical processing sector, it supports equipment that comes into contact with hot corrosive media.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Nimish Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Safat, Kuwait
Copyright 2024 Nimish Metals. All rights reserved
