Ranya Stainless stands out as a top-notch manufacturer and supplier of high-quality Stainless Steel 330 Bolts in Muscat, Oman. They provide reliable fastening solutions designed to thrive in high-temperature and corrosive environments. Thanks to their state-of-the-art manufacturing facilities and rigorous quality control processes, every 330 bolt they produce boasts exceptional strength, durability, and resistance to oxidation. Crafted to meet international standards, these bolts find their place in various industries, including petrochemicals, oil and gas, power generation, chemical processing, and refineries. Ranya Stainless has earned a reputation for delivering precision-engineered bolts that consistently perform well in challenging industrial settings.
| ASTM Specification | ASME SA 312 /ASTM A312/ TP 321H |
| EFW Pipes Sizes |
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| Wall THK | Schedule 40, Schedule 5, Schedule10, Schedule 160, Schedule 80, Schedule XXS, Schedule 80S, Schedule XS |
| Seamless Pipes Sizes |
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| Welded Pipes Sizes |
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| Forms | ERW / Round, Rectangular |
| techniques | EFW/ Welded /ERW / Seamless / Fabricated / LSAW/ CDW/ Seam-Welded / Redrawn |
| Element | SS 321H |
| Nickel | 09 To 12 |
| sulfur | 00.03 Maximum |
| Nitrogen | 00.10 |
| Chromium | 17 To 19 |
| Silicon | 00.75 Maximum |
| Magnesium | 2 Maximum |
| Carbon | 00.04 To 0.08 |
| Phosphorus | 00.045 Maximum |
| Titanium | 00.70 Maximum |
| Element | SS 321H |
| Tensile Strength | 515 |
| Yield Strength | 205 |
| Elongation | 40 |
| Rockwell | 95 |
| Brinell | 217 |
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The composition of Stainless Steel 330 Bolts primarily includes chromium (19–23%), nickel (34–37%), and iron, with added copper and manganese to boost mechanical strength and oxidation resistance. This high-alloy makeup ensures excellent tensile and yield strength, along with remarkable creep and thermal resistance, making these bolts ideal for continuous high-temperature applications. On a mechanical level, 330 bolts exhibit good ductility, toughness, and stability, even under thermal cycling, pressure, and corrosive conditions.
Stainless Steel 321H Square Pipes offer excellent resistance to intergranular corrosion, especially in high-temperature applications. They typically come in sizes ranging from 20 mm to 200 mm on each side, providing robust structural support and versatility for various industries.
Known for its resistance to oxidation and corrosion, SS 321H Seamless Pipes are manufactured without welds or joints, offering uniformity and strength. They are available in 6 mm to 300 mm diameter and are suitable for high-pressure and high-temperature environments.
Featuring good resistance to corrosion and elevated temperatures, Stainless Steel 321H ERW (Electric Resistance Welded) Pipes are produced using electric resistance welding techniques. They are available from 15 mm to 150 mm, ideal for pipelines and structural applications.
SS 321H LSAW (Longitudinal Submerged Arc Welded) Pipes resist high-temperature oxidation and corrosion. These pipes are 60 mm to 1000 mm in diameter and are commonly used in oil and gas transmission and large-diameter piping systems.
Stainless Steel 321H Round Pipes are versatile and widely used with strong resistance to scaling and corrosion. They are available in diameters ranging from 10 mm to 500 mm, making them suitable for various industrial applications, including chemical processing.
Offering excellent resistance to intergranular corrosion, Stainless Steel 321H Welded Pipes are produced by welding and are ideal for applications where joints and fittings are required. They typically come in sizes ranging from 15 mm to 600 mm in diameter, suitable for various structural and mechanical uses.
Ranya Stainless is a leading supplier, and stockist of high-quality Stainless Steel 321H Pipes in Muscat, OMAN. Our products are widely used in various applications, and we are committed to delivering excellent service, resulting in high customer satisfaction. Our unique finishing techniques further distinguish us in the stainless steel industry. We are dedicated to consistently providing superior products and effectively meeting our customer’s needs.
These Stainless Steel 330 Bolts are a go-to choice for applications that demand heat-resistant, corrosion-resistant, and durable fastening solutions. You’ll often find them in boilers, heat exchangers, furnace assemblies, superheaters, and other high-temperature equipment. In petrochemical plants, oil and gas facilities, and power generation units, 330 bolts play a crucial role in securing piping, reactors, and machinery that face extreme heat and corrosive environments. Their long service life, reliability, and stability make them indispensable for critical industrial operations.







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