Being a renowned name in Pulau Ujong, Singapore, Andre Stainless is an expert at the production and supply of high-quality Stainless Steel 347H Fasteners. For their outstanding resistance to corrosion, high-temperature strength, and durability, these fasteners find extensive application in chemical process industries, power plants, and petroleum industry applications. Produced with careful engineering and international quality standards, our 347H fasteners provide consistent performance in extreme environments. Supported by tailored solutions, competitive pricing, and unmatched customer service, Andre Stainless has emerged as the industry go-to for long-term performance and reliability in stainless steel components.
Stainless Steel 347H Fasteners are produced using an austenitic stainless steel alloy with a basic composition of 17–19% chromium, 9–13% nickel, and stabilizing element of niobium (columbium), added usually at 10 times the carbon. This alloy improves resistance to intergranular corrosion, oxidation, and carburization in high-temperature conditions. The high carbon content in the alloy improves creep resistance and mechanical strength at high temperatures. 347H fasteners exhibit superior weldability, thermal stability, and resistance to fluctuating thermal conditions, thus making them ideal for long-term application in stress-corrosive industrial 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.
SS 347H Fasteners are designed to be operated in high temperature and corrosive conditions and are therefore used in chemical processing equipment, power stations, and petrochemical processes. They find applications in heat exchangers, furnace components, reactors, boilers, and superheaters, where resistance to thermal fatigue and oxidation is important. Because they are stabilized by niobium, these fasteners avoid sensitization and intergranular corrosion, particularly following welding, thus maintaining structural integrity and lifespan. Their stress corrosion cracking resistance, pressure resistance, and thermal cycling capability render them very fit for use in outdoor installations and indoor high-heat process environments.
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