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Stainless Steel 304H stud bolts are produced in India and Dubai to meet high-temperature and high-pressure fastening requirements. Being a high-carbon variant of 304 stainless steel, SS 304H offers more strength, creep resistance, and toughness at higher temperatures. These stud bolts are manufactured according to ASTM A193 specifications and come in different threading styles such as full-threaded and double-end types. Stud bolts of SS 304H are used extensively in thermal processing equipment, boilers, and pressure vessels. These stud bolts have great corrosion resistance as well as excellent mechanical properties, providing long-lasting performance in industrial applications where they need to provide structural integrity and heat resistance.
SS 304H has 18–20% chromium, 8–11% nickel, and 0.04–0.10% carbon. SS 304H offers tensile strength in the range of 520–720 MPa, yield strength of approximately 210 MPa, and elongation of about 35%. The higher carbon percentage raises the strength and creep resistance of the material at temperatures above 500°C. SS 304H also maintains its corrosion resistance in mildly oxidizing conditions. These bolts are weldable and machinable using normal practices and possess toughness in a wide operating temperature range, which makes them extremely reliable for heat-intensive industrial applications.
| 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.
We ensure detailed documents of our Stainless Steel 304H Stud Bolts, ensuring the product is thoroughly transactable and reliable in communication. Our documents include a commercial invoice, packaging list, fumigation certificate, heat treatment chart, and a quality assurance plan. The shipment contains the NABL-approved lab test report, ensuring that the product meets very high standards. The quality commitment is further depicted by several test certificates, such as MTC as per EN 10204/3.1b, PMI Test Certificate, 100% radiography test report, and a Third-Party Inspection Certificate. All these measures ensure 100% client satisfaction and confidence in the integrity of our products.
SS 304H stud bolts find perfect application in refineries, power plants, pressure vessels, heat exchangers, and superheaters. Their high-temperature resistance allows them to be used for flange bolting and pressure fittings in boiler and steam line systems. They are utilized in petrochemical plants, chemical processing units, and those industries that need welded connections with strength retention under heat stress. SS 304H stud bolts provide leak-free fastening in high–stress, heavy–duty situations. Their high creep strength and resistance to elevated temperature conditions make them a top choice for critical service.
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