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Pengkumta Fasteners is a leading manufacturer, supplier and exporter specializing in high-quality stainless steel 304H bolts. We offer premium bolts designed to meet stringent industry standards, ensuring excellent performance and durability in harsh applications. Our commitment to quality assures that every bolt is designed to the highest standards, providing a reliable solution for various industrial requirements.
Pengkumta Fasteners is a reliable manufacturer and supplier of Stainless Steel 304H Bolts based in Bangkok, Thailand. We pride ourselves on delivering high-quality fastening solutions that are built to last and perform exceptionally well. Our Stainless Steel 304H Bolts are well-known for their impressive strength, outstanding corrosion resistance, and ability to handle high temperatures. Each bolt is crafted with precision and rigorously tested to meet international standards, ensuring they provide a long service life and dependable performance even in tough conditions. At Pengkumta Fasteners, we’re committed to supporting industries like petrochemical, construction, thermal processing, and power generation by offering top-notch Stainless Steel 304H Bolts that are perfect for critical applications.
| 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 in various industries that require both high-temperature strength and exceptional corrosion resistance. They’re commonly used in boilers, heat exchangers, pressure vessels, and piping systems that operate under high temperatures. The petrochemical and refinery sectors depend on these bolts for applications that face hot gases and corrosive chemicals. Power plants use them in turbine assemblies, exhaust systems, and superheaters. Plus, they’re great for construction and fabrication projects that need durable fasteners. With their superior mechanical properties and long service life, these bolts are a smart choice for any demanding application.
These bolts are made from a blend of chromium (18–20%) and nickel (8–11%), featuring a higher carbon content than standard 304 grade, which boosts their strength at elevated temperatures. They boast impressive tensile strength of about 515 MPa, yield strength of 205 MPa, and good elongation, making them tough enough for demanding environments. The added carbon enhances creep resistance, hardness, and overall durability, allowing these bolts to maintain their structural integrity even when exposed to heat for extended periods. With excellent oxidation resistance and stable mechanical properties, Stainless Steel 304H Bolts are perfect for high-stress and high-temperature applications.
Pengkumta Fasteners is a leading manufacturer and supplier of high-quality fasteners in Bangkok, Thailand, with over 8 years of experience serving global industries.
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