Andre Stainless is a reputable manufacturer and supplier located in Singapore, specifically on Pulau Ujong, and they specialize in high-performance stainless steel fasteners. As a prominent Stainless Steel 321H Bolts Manufacturer in Dubai, UAE, the company is committed to delivering top-notch products that are designed for critical applications across a variety of industries. With cutting-edge manufacturing capabilities and strict quality controls, Andre Stainless guarantees that every bolt meets international standards for durability and resistance to corrosion. Their strategic location in Singapore enables them to efficiently supply clients in the Middle East, making them a trustworthy partner for those in need of reliable fastening solutions.
Stainless Steel 321H Bolts are made from chromium-nickel austenitic stainless steel that is stabilized with titanium, providing excellent resistance to intergranular corrosion. The “H” grade signifies a higher carbon content, which boosts high-temperature strength. These bolts have a tensile strength of about 515 MPa and a yield strength of roughly 205 MPa, along with good elongation and impressive creep resistance. Thanks to these mechanical properties, 321H bolts are perfect for environments where prolonged exposure to high temperatures is the norm, ensuring they maintain structural integrity and performance even under tough conditions.
Material | Specification | Standards | Size | Length |
Stainless Steel 321H Bolts | ASTM, ASME and API | ASTM B 193 / ASME SB 193 | M02 to M30 | 3 mm To 200 mm |
| Element | SS 321H |
| Tensile Strength (MPa) min | 480 |
| Yield Strength 0.2% Proof (MPa) min | 275 |
| Elongation (% in 50mm) min | 16 |
| Rockwell B (HR B) max Hardness | 95 |
| Brinell (HB) max Hardness | 201 |
| Element | SS 321H |
| Ni | 0.75 |
| C | 0.15 |
| Mn | 1.00 max |
| P | 0.04 max |
| S | 0.03 max |
| Si | 1.00 max |
| Cr | 11.5 – 13.5 |
| Mo | – |
| N | – |
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Stainless Steel 321H bolts are high-performance fasteners designed for high-temperature environments, offering exceptional resistance to oxidation and corrosion. Ideal for aerospace, chemical processing, and industrial applications requiring durability and reliability.
Custom Stainless Steel 321H Hex Bolt is a custom designed fastener with a hexagonal head, designed for high temperature applications. It provides excellent corrosion resistance and strength, ideal for industrial, aerodynamic and aerospace applications.
Stainless Steel 321H leg bolt features a unique leg design for enhanced stability and support. It offers superior high-temperature and corrosion resistance, making it ideal for demanding industrial and aerospace applications.
Stainless Steel 321H expansion anchor bolt is designed for anchoring in concrete or masonry, providing exceptional high-temperature and corrosion resistance. It expands upon installation for secure, reliable holding in harsh environments.
Stainless Steel 321H Hex Flange Head Bolt connects the hexagonal head with an integrated flange, providing superior thermal corrosion resistance. Ideal for safe clamping in industrial and aerospace applications.
Stainless Steel 321H full threaded bolts feature continuous threading and excellent resistance to high temperatures and corrosion. They are ideal for securing components in demanding industrial, aerospace, and chemical processing environments.
We perform several tough tests to guarantee the reliability and performance of our products. Our Stainless Steel 321H Bolts are checked stringently for quality, and we also offer third-party inspection for added assurance. Our logistics are efficient enough to ensure that our delivery is prompt and on time to meet the demands of our clients without delay.
Stainless Steel 321H Bolts find extensive use in applications that demand high strength and resistance to oxidation at elevated temperatures. This includes heat exchangers, aircraft exhaust systems, chemical processing equipment, petrochemical plants, and power generation facilities. Their titanium-stabilized structure makes them particularly effective at preventing carbide precipitation during welding and high-temperature service. These bolts are also well-suited for marine environments, oil refineries, and thermal processing units, where dependable performance under stress is crucial. With outstanding weldability and durability, 321H bolts provide a long-lasting solution for heavy-duty, high-temperature industrial applications.







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