Akor Stainless, based in Abuja, Nigeria, stands out as a top manufacturer and supplier of high-quality Stainless Steel 321H Bolts. These bolts are crafted to excel in high-temperature and corrosive settings, ensuring outstanding performance. Each bolt is precision-engineered for durability, strength, and reliability, adhering to international quality standards for critical industrial uses. With remarkable resistance to oxidation and stress corrosion, Akor Stainless delivers Stainless Steel 321H Bolts that maintain their structural integrity even in the toughest conditions. Trusted by various industries, these bolts provide long-lasting performance, making them perfect for sectors that need reliable fastening solutions in challenging operational and high-temperature environments.
The composition of Stainless Steel 321H Bolts includes iron, chromium (17–19%), nickel (9–13%), and titanium to prevent intergranular corrosion, along with controlled levels of carbon, manganese, and silicon. The “H” in their name signifies a higher carbon content, which enhances strength at elevated temperatures. These bolts are known for their excellent tensile strength, high yield strength, and superior toughness. They remain stable even under prolonged exposure to high temperatures, resist creep and thermal fatigue, and offer long-term mechanical reliability, making them ideal for demanding applications where both corrosion resistance and high-temperature performance are crucial.
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 the chemical processing, petrochemical, power generation, and aerospace industries due to their strength and resistance to corrosion at high temperatures. They are perfect for fastening components in boilers, heat exchangers, furnace parts, pressure vessels, and exhaust systems. Additionally, these bolts are utilized in structural and industrial applications where long-term reliability and mechanical performance under thermal stress are vital. With their blend of durability, toughness, and heat resistance, Stainless Steel 321H Bolts are a dependable choice for any demanding application.
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