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MUKAU FASTENERS, a reputable manufacturer and supplier located in Kinshasa, Congo, specializes in high-quality Stainless Steel 304H Nuts that are built for exceptional strength, corrosion resistance, and performance in high temperatures. Crafted from austenitic stainless steel with a higher carbon content, these nuts deliver improved mechanical stability and long-lasting durability, even in tough environments. MUKAU FASTENERS is committed to precision manufacturing and adheres strictly to international quality standards, making their 304H Nuts perfect for power plants, chemical processing, petrochemical industries, and industrial machinery, where secure fastening and structural integrity are essential. These nuts ensure reliable performance against heat, oxidation, and moderate corrosive conditions.
Stainless Steel 304H Nuts are composed of about 18–20% chromium, 8–10.5% nickel, and 0.04–0.10% carbon, which together provide impressive high-temperature strength and outstanding corrosion resistance. They boast a tensile strength of approximately 515–620 MPa and high yield strength, along with good ductility, toughness, and fatigue resistance. The increased carbon content boosts mechanical performance at elevated temperatures while ensuring stability in oxidizing and mildly corrosive environments. These nuts promise dimensional stability, long-term reliability, and secure fastening, making them ideal for high-temperature, industrial, and chemical applications that demand durability and 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 |
| Specifications | DIN, ISO ,JIS ,GB, IS, BS, ASTM |
| Standard | ASTM A193 / A194, ASME SA193 / SA194 |
| Size | M2 – M100 |
| Length | 3 mm to 200 mm | Custom Sizes |
| Dimensions Standard | DIN: DIN931, 933, 934, 7991, 976, 125 ISO: ISO 4033, 4032 ASME B18.5, B18.3 |
| Form | Hex, Threading, Square, Round as per Gauge Etc. |
| Threads | Unless otherwise specified, the threads shall be rolled or cut and tapped horizontally or vertically |
| Threads available | UNF, BSW, BSF, METRIC, UNC, or as required |
| Threads Configuration | ASME B1.1 2A/3A – 2B/3B Inch Unified Threads and B1.13M 6h-6G Metric Coarse Threads |
| Certification | Dual Certified As per ASTM & ASME Codes |
| Test Certificate | As per EN 10204 / 3.1 Manufacturer Test Certificate, PED 97/23/EC Certified, Merkblatt AD 2000 W2 Certified |
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 Nuts find extensive use in power generation, chemical and petrochemical plants, industrial machinery, boilers, heat exchangers, and pressure vessels, thanks to their remarkable high-temperature strength and corrosion resistance. They are perfect for securing structural components, piping systems, and machinery assemblies that are exposed to heat and moderate corrosive conditions. The 304H grade guarantees durability, dependable load-bearing capacity, and a long service life, making these nuts a reliable choice for various demanding applications.
We ensure that we have complete documentation for our Stainless Steel 304H nuts. Commercial invoices, packaging documents, heat treatment charts, quality control charts, and NABL-approved reports on laboratory testing are included. Our commitment to quality extends to issuing various test certificates and our 304H products, such as MTC according to EN 10204/3.1b, PMI test certificate, and 100% radiography test report. To further strengthen customer satisfaction, we offer third-party inspection certificates, which prove our fruit’s quality and reliability for various applications and durability.
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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