Home > Stud Bolts > Stainless Steel 304H Stud Bolts
Harsh Metalloys, based in Mumbai, India, stands out as a top manufacturer and supplier of robust and high-performance Stainless Steel 304H Stud Bolts. Crafted from high-carbon austenitic stainless steel, these fasteners deliver remarkable strength, heat resistance, and corrosion resistance, especially in high-temperature settings. Built to comply with international standards like ASTM A193 and ASME specifications, 304H stud bolts are perfect for tough industrial applications. Harsh Metalloys offers a diverse selection of stud bolts in various thread types, lengths, and finishes, providing dependable fastening solutions for sectors such as power generation, petrochemical, oil & gas, and thermal processing.
When it comes to the composition and mechanical properties of Stainless Steel 304H Stud Bolts, they consist of Chromium (18–20%), Nickel (8–12%), and Carbon (0.04–0.10%), along with trace elements like Manganese (≤2%), Silicon (≤1%), Phosphorus (≤0.045%), and Sulfur (≤0.03%). The increased carbon content enhances tensile and creep strength at higher temperatures. Typically, these stud bolts show tensile strength ranging from 515–620 MPa, yield strength around 205–275 MPa, an elongation of about 40%, and a hardness close to 95 HRB. This specific composition guarantees excellent mechanical stability, oxidation resistance, and durability in both high-temperature and corrosive environments.
| Grade | Stainless Steel 304, 304H, 304L |
| 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 | Threaded Rod, Class A double ended stud, Tie Rod, Double Ended Stud, Stud Bolts, Bronze Hex Studs, Threaded Studs |
| 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 |
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Stainless Steel DIN 1.4301 Stud Bolts offer superior strength and corrosion resistance, adhering to DIN standards. Ideal for general-purpose applications, they ensure reliable performance in various industrial settings.
Stainless Steel UNS S30409 Stud Bolts deliver high strength and excellent resistance to corrosion and high temperatures. Suitable for demanding industrial applications, they ensure durability and reliability in challenging environments.
Stainless Steel 304H Flush Head Stud Bolts combine high strength with a sleek, flush design, ideal for applications requiring minimal protrusion. They offer excellent corrosion resistance and durability in harsh environments.
Stainless Steel 304H Stud Bolts are the go-to choice for high-temperature and high-pressure situations, especially in industries like power generation, refineries, petrochemicals, and heat exchangers. You’ll often find them used to secure flanges, valves, pressure vessels, and structural parts that need to withstand intense heat. These bolts shine in applications involving boiler components, thermal processing gear, and exhaust systems, where durability and resistance to scaling are crucial. With their dependable performance in extreme conditions, 304H stud bolts offer a secure, corrosion-resistant fastening solution for critical assemblies, helping to ensure safety and longevity even in tough service environments.
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