MERIH STAINLESS, located in Istanbul, Turkey, has built a solid reputation as a manufacturer and supplier of Stainless Steel 347H Fasteners, providing top-notch fastening solutions for demanding industries around the globe. With a strong focus on precision engineering, innovation, and adherence to international quality standards, the company delivers products that guarantee durability and reliability, even in the toughest conditions. The Stainless Steel 347H Fasteners are specifically crafted to resist intergranular corrosion at high temperatures, making them perfect for critical environments. MERIH STAINLESS prioritizes customer satisfaction by offering a wide range of fasteners in various sizes, types, and finishes, ensuring they meet diverse industrial needs with consistent quality and prompt delivery.
These fasteners are primarily made up of iron, chromium (17–19%), nickel (9–13%), and a high carbon content for added strength, along with stabilizing elements like columbium (niobium) and tantalum. This unique blend of alloying elements gives them remarkable resistance to oxidation and creep at elevated temperatures. Mechanically, they boast high tensile and yield strength, excellent toughness, and impressive stress rupture properties, even in environments that exceed 1000°F (537°C). The perfect balance of hardness and ductility makes 347H fasteners ideal for both strength-demanding and corrosive service conditions.
|
Material |
Specification |
Standards |
Size
|
Length |
|
Stainless Steel 347H Fasteners
|
IS
BS
ASTM
|
ASTM / ASME – A/ SA 193 |
3 mm
to
200 mm
|
M02 to M33
|
| Grade | Mn | N | P | C | S | Cr | Mo | Si | Ni | Other | |
| 347H | min. max | 2.00 | – | 0.045 | 0.04 0.10 | 0.030 | 17.0 19.0 | 3 – 4 | 0.75 | 9.00 13.00 | – – |
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| 347H | 515 | 205 | 40 | 95 | 217 |
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Highly resistant to corrosion, Stainless Steel 347H Nuts are ideal for high-temperature environments. Available in sizes from M2 to M64, they offer robust performance in harsh conditions, maintaining structural integrity and reliability.
Corrosion-resistant and suited for high-stress applications, Stainless Steel 347H Stud Bolts come in diameters ranging from M6 to M36 and lengths up to 1000 mm. They are used in industrial settings where high strength and resistance to oxidation are required.
Featuring excellent resistance to oxidation and corrosion, Stainless Steel 347H Bolts are available in sizes from M5 to M50, with lengths varying from 10 mm to 300 mm. They are ideal for high-temperature and corrosive environments.
Highly resistant to corrosion, Stainless Steel 347H threaded rods are available in diameters from M6 to M36 and lengths up to 3000 mm. They provide excellent mechanical strength and are used in high-temperature applications.
Offering superb corrosion resistance, Stainless Steel 347H screws are available in sizes from M3 to M20 and lengths ranging from 10 mm to 100 mm. They are suitable for high-temperature and aggressive chemical environments.
Corrosion-resistant and durable Stainless Steel 347H washers come in sizes ranging from M2 to M64. They are designed to distribute load evenly and prevent surface damage in high-temperature and corrosive environments.
We have incorporated comprehensive documentation with Stainless Steel 347H Fasteners like commercial invoice, packing list, fumigation certificate, heat treatment chart, quality assurance plan, NABL-approved lab test report etc. To ensure full satisfaction for customers, several test certificates with our Stainless Steel 347H Fasteners are also provided, including Material Test Certificate (MTC) as per the EN 10204/3.1b, PMI Test Certificate, 100% radiography test report, and Third Party Inspection Certificate.
Stainless Steel 347H Fasteners find their place in high-temperature and corrosive environments where strength and stability are paramount. They are commonly used in heat exchangers, boilers, pressure vessels, furnace parts, and exhaust manifolds. In industries like petrochemical, chemical processing, and power generation, these fasteners ensure secure and durable connections, even under severe thermal cycling and corrosive conditions. Their resistance to intergranular corrosion and oxidation also makes them suitable for aerospace, marine, and refinery applications. From heavy engineering equipment to high-pressure pipelines, 347H fasteners are designed to deliver long-lasting performance and reliability.
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