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MUKAU FASTENERS is a top-notch manufacturer and supplier based in Kinshasa, Congo, specializing in high-quality Stainless Steel 304H Bolts. These bolts are crafted for exceptional strength, impressive high-temperature performance, and outstanding resistance to corrosion. Made from austenitic stainless steel with a higher carbon content, they offer enhanced mechanical stability and durability, making them perfect for tough industrial settings. MUKAU FASTENERS is committed to precision manufacturing and follows strict international quality standards, providing 304H Bolts that are ideal for power plants, chemical processing, petrochemical industries, and industrial machinery, where secure fastening and structural integrity are crucial. These bolts are built to endure heat, oxidation, and moderate corrosive environments while ensuring reliable performance.
Stainless Steel 304H Bolts are composed of about 18–20% chromium, 8–10.5% nickel, and 0.04–0.10% carbon, which boosts their high-temperature strength and corrosion resistance. They have a tensile strength ranging from 515–620 MPa, along with high yield strength, excellent ductility, toughness, and fatigue resistance. The added carbon content enhances their mechanical performance at elevated temperatures while keeping stability in oxidizing and mildly corrosive settings. These bolts provide dimensional stability, secure fastening, and long-lasting reliability, making them perfect for high-temperature, industrial, and chemical applications that demand durable, maintenance-free performance.
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | |
|---|---|---|---|---|---|---|---|---|---|---|
| 304H | min. | 0.04 | – | – | – | – | 18.0 | – | 8.0 | – |
| max. | 0.10 | 2.0 | 0.75 | 0.045 | 0.030 | 20.0 | – | 10.5 | – | |
| 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 | ||||
| 304H | 515 | 205 | 40 | 92 | 201 |
| Grade | Stainless Steel 304H |
| Specifications | ASTM A193 / ASME SA193 |
| Standard | DIN, ASTM, BS and all International Standards |
| Length | 3mm to 200mm |
| Size | M3 – M56 | 3/6″ to 2″ | Custom Sizes |
| Types | U- Bolts, J Bolts, Mushroom Head Square Neck Bolts, Bolts, Stud Bolts, Hex Head Bolts, Socket Hexagon Head Screw Anchor Bolt, T-Head Bolts, Eye Bolt, Foundation Bolts, Structural 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.
Stainless Steel 304H Bolts find extensive use in power generation, chemical processing plants, petrochemical industries, boilers, heat exchangers, pressure vessels, and industrial machinery, thanks to their high-temperature strength and corrosion resistance. They are particularly suited for fastening structural components, piping systems, and heavy-duty machinery that face heat, oxidation, and moderate corrosive conditions. The 304H grade guarantees dependable mechanical performance, ensuring that these bolts meet the rigorous demands of various industrial applications.
Our commitment to quality is demonstrated by the rigorous testing procedures we apply to all our Stainless Steel 304H bolts before delivery. Some advanced tests include hardness, chemical analysis by Spectro analysis, positive material identification (PMI), levelling, micro-macro, pitting resistance, flare, and intergranular corrosion (IGC) tests. Among these high standards, we also issue commercial invoices and packaging lists; we provide necessary documents such as certificates of origin and documents proving the legality of the Trade Group or Embassy. To further ensure customer satisfaction, we offer third-party inspection certificates, proving our 304H bolts are quality and reliable for various applications.
Mukau Fasteners is a leading manufacturer and supplier of high-quality fasteners in Kinshasa, Congo, with over 8 years of experience serving global industries.
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