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Mazin Fasteners is a trusted manufacturer and supplier of top-notch industrial fasteners, proudly based in Muscat, Oman. The company caters to clients throughout Oman and the GCC, delivering fastening solutions that meet international standards and the rigorous demands of various projects. They offer an extensive range of stainless steel products, including Stainless Steel 304H bolts, which are specially crafted for high-temperature applications. With a strong emphasis on precision manufacturing, stringent quality control, and reliable delivery, Mazin Fasteners supports industries like oil and gas, petrochemical, power generation, construction, and heavy engineering.
Stainless Steel 304H bolts are made from an austenitic stainless steel alloy that contains around 18–20% chromium and 8–11% nickel, along with a higher carbon content of 0.04–0.10%. This elevated carbon level boosts their strength at high temperatures and improves creep resistance. These bolts are known for their impressive tensile and yield strength, outstanding toughness, and dependable oxidation and corrosion resistance. They maintain their mechanical stability even under thermal stress, perform admirably in high-temperature settings, and are typically non-magnetic when in the annealed state.
| 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.
You’ll find Stainless Steel 304H bolts commonly used in situations that involve high temperatures and moderate corrosive environments. They’re often found in boilers, heat exchangers, pressure vessels, and piping systems within power plants and refineries. Additionally, they’re utilized in petrochemical processing units, industrial furnaces, and thermal equipment. Thanks to their enhanced strength at elevated temperatures, Stainless Steel 304H bolts are perfect for flanges, structural connections, and assemblies that face continuous heat and pressure in industrial settings.
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.
Mazin Fasteners is a leading manufacturer and supplier of high-quality fasteners in Muscat, OMAN, with over 8 years of experience serving global industries.
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