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At Hazlewood Fasteners in Canberra, we engineer strength that endures. Our stainless steel 347 bolts are crafted to perform flawlessly in high-temperature and corrosive environments where reliability is paramount. Designed for precision and durability, these bolts offer exceptional resistance to intergranular corrosion, oxidation, and stress. Whether securing complex machinery, structural frameworks, or thermal systems, they maintain steadfast performance under demanding conditions. With Hazlewood Fasteners’ 347 bolts, every thread reflects our commitment to engineering excellence—hardware built not just to fasten, but to fortify the integrity and longevity of your most critical assemblies.
Stainless steel 347 bolts are alloyed with chromium and nickel and stabilized with niobium (columbium) to prevent carbide precipitation during high-temperature exposure. This composition delivers outstanding resistance to intergranular corrosion and oxidation up to 870°C. The material provides excellent tensile and yield strength while retaining toughness and ductility under thermal stress. Precision heat treatment ensures stability, hardness, and long-term durability. With their combination of strength, thermal resilience, and corrosion resistance, stainless steel 347 bolts stand as a dependable fastening solution for extreme service conditions.
| Specifications | : | ASTM A 193 ASME SA 193 |
| Standard | : | DIN, ASTM, BS and all International Standards |
| Length | : | 3 mm to 200 mm |
| Size | : | M3 – M56 | 3/6″ to 2″ | Custom Sizes |
| Type | : | Hex Head Bolts, Square Bolts, U bolts, Eye bolts, T bolt, Hex Bolt, Lag Bolts, Counter sunk Bolts, Hex Head nuts, Square nuts, Lock nuts, Eye nuts, wing nuts, T nuts, Panel Nuts, Coupling Nuts, Dome nuts, Acorn Nuts. |
| Element | SS 347 |
| Ni | 9.0 – 13.0 |
| C | 0.08 |
| Mn | 2.0 max |
| P | 0.045 max |
| S | 0.030 max |
| Si | 0.75 max |
| Cr | 17.0 – 19.0 |
| Mo | – |
| N | – |
| Element | SS 347 |
| Tensile Strength (MPa) min | 515 |
| Yield Strength 0.2% Proof (MPa) min | 205 |
| Elongation (% in 50mm) min | 40 |
| Rockwell B (HR B) max Hardness | 92 |
| Brinell (HB) max Hardness | 201 |
To satisfy our clients needs by providing high quality products at competitive price as per the schedule and to maintain long term relationship with our clients.
Stainless steel 347 bolts excel in high-temperature and corrosive environments where mechanical stability and oxidation resistance are critical. They are widely used in power generation, refineries, petrochemical processing, and heat exchanger systems. These bolts perform exceptionally in furnace components, pressure vessels, and exhaust manifolds where prolonged heat exposure challenges ordinary fasteners. In the aerospace, marine, and construction sectors, they ensure steadfast connections that endure vibration, stress, and chemical exposure. Simply put, stainless steel 347 bolts are the embodiment of reliability—fortifying the foundations of modern industry with the enduring strength and precision of Hazlewood Fasteners.
At Hazlewood Fasteners, we take great care in packaging our Stainless Steel 347 bolts to ensure they arrive in top condition. Our packaging solutions use sturdy materials and secure methods to protect the bolts from damage during transit. Each package is meticulously labeled with detailed product information for easy identification and efficient handling. Whether you order in small or large quantities, our precise packaging process guarantees that your Stainless Steel 347 bolts are delivered intact and ready for use in demanding applications.
Hazlewood Fasteners is a leading manufacturer and supplier of high-quality fasteners in Canberra, Australia, with over 8 years of experience serving global industries.
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