Walid Stainless stands out as a top manufacturer and supplier of Stainless Steel 321H Bolts in Tunis, Tunisia. They specialize in delivering high-quality fastening solutions tailored for industries that operate in high temperatures and harsh, corrosive environments. Known for their precision in manufacturing, strict quality control, and commitment to international standards, Walid Stainless caters to sectors like oil and gas, petrochemicals, power generation, and chemical processing. Their Stainless Steel 321H Bolts are designed to offer exceptional strength at high temperatures, outstanding oxidation resistance, and long-lasting reliability, making them perfect for critical industrial applications where durability and performance under thermal stress are crucial.
Stainless Steel 321H Bolts are crafted from an austenitic stainless steel alloy that includes chromium, nickel, and titanium. The addition of titanium helps stabilize the steel against carbide precipitation when exposed to high temperatures. With a higher carbon content, 321H provides enhanced strength in elevated conditions. These bolts showcase impressive tensile and yield strength, good toughness, and remarkable resistance to oxidation and corrosion. They maintain their mechanical integrity even under prolonged high-temperature use, making them ideal for critical applications that demand durability, stability, and long-term reliability.
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 high-temperature and corrosive settings across a variety of industries. Common applications include boilers, heat exchangers, pressure vessels, piping systems, and flanged joints in petrochemical plants, oil and gas facilities, and power generation units. They are also utilized in chemical processing equipment and machinery that undergo thermal cycling. Thanks to their oxidation resistance, high-temperature strength, and dependability, Stainless Steel 321H Bolts are the go-to choice for securing critical components in demanding environments.
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