Ranya Stainless stands out as a top-notch manufacturer and supplier of high-quality Stainless Steel 347H Bolts in Muscat, Oman. They specialize in providing reliable fastening solutions that can handle high temperatures and corrosive environments. Thanks to their advanced manufacturing techniques and rigorous quality control, every 347H bolt they produce boasts exceptional strength, durability, and resistance to corrosion. These bolts are crafted to meet international standards and 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 fasteners that consistently perform well in challenging applications, giving customers trustworthy solutions for their critical industrial needs.
The composition of Stainless Steel 347H Bolts includes chromium (17–19%) and nickel (9–13%), with niobium added to prevent intergranular corrosion. The higher carbon content contributes to enhanced strength at high temperatures, creep resistance, and thermal stability. Mechanically, 347H bolts offer impressive tensile and yield strength, along with good ductility, which helps them maintain their structural integrity even under heat, pressure, and mechanical stress. These characteristics make them perfect for continuous high-temperature service and environments where oxidation, thermal cycling, and corrosion are significant concerns.
Material | Specification | Standards | Size | Length |
Stainless Steel 347H Bolts | ASTM, ASME and API | ASTM B 193 / ASME SB 193 | M02 to M30 | 3 mm To 200 mm |
| Element | SS 347H |
| Tensile Strength (MPa) min | 480 |
| Yield Strength 0.2% Proof (MPa) min | 275 |
| Elongation (% in 50mm) min | 16 |
| Rockwell B (HR B) max Hardness | 95 |
| Brinell (HB) max Hardness | 201 |
| Element | SS 347H |
| Ni | 0.75 |
| C | 0.15 |
| Mn | 1.00 max |
| P | 0.04 max |
| S | 0.03 max |
| Si | 1.00 max |
| Cr | 11.5 – 13.5 |
| Mo | – |
| N | – |
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Stainless Steel 347H Bolts are high strength, heat resistant fasteners designed for extreme temperatures and hot environments. They provide excellent oxidation properties and durability, ideal for aerospace and industrial applications.
Custom Stainless Steel 347H Hex Bolt is a high heat resistance fastener with a hexagonal head, tailored to specific dimensions. Provides exceptional durability and resistance to extreme heat applications.
Stainless Steel 347H Leg Bolt is a durable high heat resistant fastener with a long threaded shaft and flat head, engineered for durability and stability in extremely hot conditions in
Stainless Steel 347H Expansion Anchor Bolt is a heat-resistant fastener for concrete or masonry. It expands in the hole as it tightens, providing a firm grip.
Stainless Steel 347H Hex Flange Head Bolt features a hexagonal head with an integrated flange for improved weight distribution. Provides superior thermal resistance and durability to extreme temperatures and environmental corrosion.
Stainless steel 347H fully threaded bolts have threads running the full length, for permanent clamping ability and superior heat resistance. They are ideal for demanding applications that require durability and heat resistance.
we prioritize quality and reliability by conducting rigorous in-house testing on all our products to ensure they meet the highest standards. Our comprehensive testing procedures include material and performance evaluations, ensuring optimal durability and performance. Additionally we offer third-party inspection services to provide further assurance to our customers. With a commitment to prompt delivery. We ensure that all orders are processed efficiently and shipped on time, meeting the needs of our clients without compromise.
In industries that demand durable, heat-resistant, and corrosion-resistant fastening solutions, Stainless Steel 347H Bolts are a go-to choice. They are frequently used in boilers, heat exchangers, superheaters, and high-temperature piping assemblies. In petrochemical, oil and gas, and chemical processing plants, these bolts ensure secure connections in reactors, furnace systems, and critical machinery that face aggressive chemicals and extreme heat. Power plants and refineries also depend on these bolts for their high-temperature equipment and piping systems. Their reliability, long service life, and stability make them an ideal fit for demanding industrial applications.
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