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Ramu Fasteners is a reputable manufacturer and supplier of Stainless Steel 347H Bolts, proudly based in Hyderabad, India. The company has built a solid reputation for providing top-notch fastening solutions that are engineered for strength, durability, and reliable performance, especially in high-temperature settings. With state-of-the-art manufacturing facilities, precision machining, and rigorous quality control measures, Ramu Fasteners guarantees consistent quality and precise dimensions. Their Stainless Steel 347H Bolts are specifically designed to endure harsh thermal and corrosive environments. Catering to various industries across India, the company is dedicated to excellence in quality, timely deliveries, and customer-centric fastening solutions.
These Stainless Steel 347H Bolts are crafted from a stabilized austenitic stainless steel alloy that includes chromium, nickel, and niobium, featuring a higher carbon content to boost high-temperature strength. They provide impressive tensile and yield strength, good toughness, and exceptional creep resistance even at elevated temperatures. The niobium stabilization helps prevent intergranular corrosion, ensuring the bolts maintain their structural integrity after welding or extended heat exposure. With their mechanical stability and oxidation resistance, Stainless Steel 347H Bolts are well-suited for challenging thermal and pressure conditions.
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | |
| 347H | min. | 0.04 | – | – | – | – | 17.0 | 3.00 | 9.0 | – |
| max. | 0.10 | 2.0 | 1.00 | 0.045 | 0.030 | 19.0 | 4.00 | 13.0 | – | |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 7.96 g/cm3 | 1450 °C | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 40 % |
| 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. |
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.
You’ll find Stainless Steel 347H Bolts widely utilized in industries that demand high-temperature and corrosion-resistant fastening solutions. They are commonly used in petrochemical refineries, chemical processing plants, oil and gas equipment, power generation systems, heat exchangers, and pressure vessels. These bolts are perfect for assemblies that face continuous heat, thermal cycling, and aggressive media. Offering a long service life, low maintenance, and reliable performance, Stainless Steel 347H Bolts are essential for critical applications in the industrial and energy sectors.
We at Ramu Fasteners maintain the exacting quality standards of our stainless steel 347H bolts, which is demonstrated by careful labeling. Our commitment is reflected in the trading invoices that go.” beyond, durable packaging, fumigation certificates, complete heat treatment records and strict quality control programs up to MTCs , PMI test certificates, and 100%; complete radiography test certificates further prove our commitment to excellent quality and reliability, so that each bolt is wrapped with the utmost care using protective materials to prevent damage at transport, guaranteeing arrival in optimum condition, ready for immediate use in demanding applications.
Ramu Fasteners is a leading manufacturer and supplier of high-quality fasteners in Hyderabad, India, with over 8 years of experience serving global industries.
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