Stainless Steel 321H Bolts are robust fastening solutions crafted for situations that demand outstanding resistance to corrosion, durability under high temperatures, and long-lasting reliability. Thanks to their titanium stabilization, these bolts are particularly resistant to intergranular corrosion, making them perfect for use in boilers, heat exchangers, pressure vessels, and industrial piping systems that face extreme temperatures and aggressive chemical environments.
The makeup of Stainless Steel 321H Bolts includes iron, chromium, nickel, and titanium. Chromium plays a key role in providing corrosion resistance, while nickel boosts toughness and ductility. Titanium helps stabilize the microstructure, ensuring that the bolts maintain their mechanical integrity even at elevated temperatures. With their impressive tensile strength, thermal stability, and resistance to creep, these bolts are well-suited for high-stress and high-temperature applications.
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.
You’ll find Stainless Steel 321H Bolts in a variety of settings, including power plants, petrochemical industries, chemical processing equipment, and high-temperature industrial pipelines. Their unique blend of mechanical strength, corrosion resistance, and heat tolerance guarantees secure and enduring fastening. In short, Stainless Steel 321H Bolts offer durable, cost-effective, and trustworthy solutions for essential industrial, structural, and engineering projects.
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