Lecong Stainless is a trusted manufacturer and supplier based in Da Nang, Vietnam, known for providing top-notch Stainless Steel 347H Fasteners. These fasteners are designed to offer exceptional strength, corrosion resistance, and durability, especially in high-temperature environments. Stainless Steel 347H is a titanium-stabilized austenitic stainless steel that effectively resists intergranular corrosion while maintaining its mechanical stability even when exposed to elevated temperatures for extended periods. Engineered to meet international standards, these fasteners are perfect for securing components in critical industries like power generation, chemical processing, and petrochemical plants.
The composition of Stainless Steel 347H Fasteners primarily includes iron, chromium (17–19%), nickel (8–12%), and titanium for stabilization, along with manganese, silicon, and a carefully controlled carbon content. The titanium stabilization helps prevent carbide precipitation during welding, which enhances both corrosion resistance and mechanical integrity. In terms of mechanical properties, they boast a tensile strength ranging from 515 to 750 MPa and a yield strength between 205 and 275 MPa, along with excellent oxidation and creep resistance at temperatures reaching up to 700°C. The austenitic microstructure contributes to their toughness, dimensional stability, and long-lasting reliability in challenging environments.
|
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.
These fasteners are widely utilized in industries that require high-temperature resistance and robust corrosion protection. You’ll often find them in boilers, heat exchangers, pressure vessels, and reactor equipment. In the chemical and petrochemical sectors, they are essential for process lines, storage tanks, and structural assemblies that face aggressive conditions. Their remarkable strength and resistance to scaling also make them ideal for applications in aerospace, marine, and power generation. Furthermore, Stainless Steel 347H Fasteners are employed in food processing and pharmaceutical equipment, where high-temperature durability and hygiene are paramount. Their reliability and strong performance make them a go-to choice for demanding industrial applications.
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