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Located in the industrial heart of Manama, Bahrain, Niazi Stainless stands as a trusted partner for industry, specializing in the supply and manufacturing of high-integrity fastening solutions. We understand that the reliability of your project often hinges on the smallest components, which is why we take great pride in our Stainless Steel 347 Stud Bolts. These are meticulously produced to offer exceptional performance in demanding environments, ensuring your operations benefit from both strength and lasting durability. Our commitment is to provide not just a product, but a guarantee of safety and efficiency.
The strength of these stud bolts comes from their specific makeup. They are crafted from an austenitic chromium-nickel stainless steel that is stabilized with columbium (niobium). This crucial addition gives the material its superior resistance to intergranular corrosion following exposure to high temperatures. This means they maintain excellent tensile strength and impressive creep resistance, even when subjected to intense heat, making them far less likely to stretch or deform under sustained pressure compared to other grades.
| 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.
Niazi 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.
You’ll find these stud bolts are indispensable in settings where heat and corrosion are constant challenges. They are the preferred choice for securing critical components in furnace parts, heat exchangers, and aircraft exhaust systems. Within the petrochemical and refining industries, they provide essential connections for pressure vessels, pipelines, and flare systems, confidently handling the aggressive acids and elevated temperatures common in these processes. Essentially, wherever failure is not an option, Stainless Steel 347 Stud Bolts deliver the necessary peace of mind.
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