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Bilal Fasteners is a leading manufacturer, supplier, and exporter of high-quality stainless steel 347H bolts in Indonesia, Jakarta. Known for our strong commitment to durability and reliability, we strictly adhere to industry standards. Our wide range of sizes ensures that we effectively meet the variety of applications required. With our dedication to delivering effective solutions, we guarantee durability and stand as the partner of choice for all your fastening needs, excelling in performance, reliability, and longevity.
These Stainless Steel 347H Bolts are made from a niobium-stabilized austenitic stainless steel, featuring around 17–19% chromium, 9–13% nickel, and a higher carbon content than standard 347, which enhances creep resistance at elevated temperatures. The niobium in the alloy helps protect against intergranular corrosion. On the mechanical side, 347H boasts a tensile strength of about 515 MPa and a yield strength of around 205 MPa, along with excellent toughness and oxidation resistance, making these bolts a reliable choice for extended use in high-temperature environments.
| 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 commonly used in high-temperature and high-pressure settings, such as petroleum refining, chemical processing, power generation, and aerospace industries. They’re perfect for fastening components in heat exchangers, boiler tubes, superheaters, and reactors, where resistance to creep, oxidation, and intergranular corrosion is essential. These bolts maintain their strength and structural integrity even during thermal cycling and exposure to corrosive substances. Their stabilization and high carbon content ensure consistent performance in welded structures and high-heat conditions, making them the go-to choice for securing critical equipment that endures severe thermal and mechanical stress.
We at Bilal 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.
Bilal Fasteners is a leading manufacturer and supplier of high-quality fasteners in Indonesia, Jakarta, with over 8 years of experience serving global industries.
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