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Emilio Stainless, a reputed manufacturer and supplier based in Manila, Philippines, offers premium-quality Stainless Steel 347 Stud Bolts known for their superior strength, corrosion resistance, and performance in high-temperature environments. These bolts are made from niobium-stabilized austenitic stainless steel, which prevents carbide precipitation during welding and thermal exposure. SS 347 provides excellent oxidation and intergranular corrosion resistance, making it ideal for prolonged use in elevated temperature applications. Emilio Stainless manufactures 347 Stud Bolts with precision and adherence to international standards, catering to critical industries such as petrochemical, power generation, heat treatment, and chemical processing plants.
Stainless Steel 347 Stud Bolts primarily consist of 17–19% chromium, 9–13% nickel, and niobium (columbium) as a stabilizing element, along with small amounts of manganese, silicon, and carbon (≤0.08%). This composition ensures resistance to sensitization and enhances high-temperature strength. The bolts exhibit a tensile strength of about 515 MPa, yield strength around 205 MPa, and good elongation properties. They retain mechanical stability and oxidation resistance up to 900°C, providing superior durability, ductility, and toughness under thermal cycling and corrosive service conditions.
| Grade | Stainless Steel 347, 347H |
| Specifications | ASTM A193 / ASME SA193, DIN, ASTM, BS and all International Standards |
| Length | 3mm to 200mm |
| Size | M 02 to M 160, Custom Sizes |
| Types | Threaded Rod, Class A double ended stud, Tie Rod, Double Ended Stud, Stud Bolts, Bronze Hex Studs, Threaded Studs etc |
| Grade | Yield Strength 0.2% Proof (MPa) min | Tensile Strength (MPa) min | Elongation (% in 50mm) min | Hardness | |
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| 347 | 205 | 515 | 40 | 95 | 201 |
| Grade | Density (kg/m3) | Specific Heat 0-1000C (J/kg.K) | Electrical Resistivity (n.m) | Elastic Modulus (GPa) | Mean Coefficient of Thermal Expansion (m/m/0C) | Thermal Conductivity (W/m.K) | |||
| 0-1000C | 0-3150C | 0-5380C | at 1000C | at 5000C | |||||
| 347 | 8000 | 500 | 720 | 193 | 17.2 | 17.8 | 18.4 | 16.2 | 21.5 |
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Stainless Steel 347 stud anchor bolts are designed for high-temperature and corrosive environments, providing robust strength and resistance to oxidation, making them perfect for securing heavy machinery and structural components.
Stainless Steel 347 stud exhaust bolts are engineered for high-temperature exhaust systems, offering exceptional resistance to heat and corrosion. They ensure durable, reliable performance in demanding automotive and industrial applications.
Stainless Steel 347 hex stud bolts provide exceptional strength and resistance to high temperatures and corrosion, making them ideal for demanding industrial, aerospace, and high-pressure applications requiring durable and reliable fasteners.
Emilio Stainless ensures quality in the form of high-grade stainless steel 347 stud bolts. Testing is performed for hardness, spectro analysis, PMI, flaring, micro, macro, pitting resistance, and IGC. Commercial invoices, packaging lists, and Certificates of Origin accompany all shipments for full documentation. The third-party inspection certificates ensure quality and reliability and give assurance that the products supplied will satisfy our customers.
Stainless Steel 347 Stud Bolts are extensively used in environments that require heat resistance, strength, and corrosion protection. They are ideal for fastening components in boilers, heat exchangers, superheaters, exhaust systems, and pressure vessels. In industries such as oil and gas, petrochemical, chemical processing, and power generation, these bolts ensure secure and durable connections in high-temperature and oxidizing conditions. Their niobium stabilization makes them suitable for welded assemblies and long-term service in elevated heat. Emilio Stainless supplies SS 347 Stud Bolts in various lengths, threads, and finishes, ensuring optimal performance and reliability across demanding industrial applications.
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