From the heart of Manama’s industrial landscape, Niazi Stainless has established itself as a trusted partner for quality fastening solutions. We take pride in manufacturing and supplying Stainless Steel 321 Bolts, a product line specifically chosen for its superior performance in demanding environments. Our commitment is to provide clients across Bahrain and beyond with reliable components that stand the test of time, backed by local expertise and a dedication to meeting the precise specifications of every project.
The strength of our 321 bolts comes from their specialized composition, which includes titanium added to the standard chromium-nickel stainless steel formula. This crucial addition gives the bolts excellent resistance to intergranular corrosion, particularly after exposure to high temperatures. This stabilization allows them to maintain impressive tensile strength and durability, making them far more resilient than standard grades when subjected to intense heat and mechanical stress over long periods.
Material | Specification | Standards | Size | Length |
Stainless Steel 321 Bolts | ASTM, ASME and API | ASTM B 193 / ASME SB 193 | M02 to M30 | 3 mm To 200 mm |
| Element | SS 321 |
| 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 321 |
| 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 | – |
Contact us to get a quick quote for your requirement.
Stainless Steel 321 bolts are high-performance fasteners known for their excellent oxidation and corrosion resistance at elevated temperatures. Ideal for aerospace, chemical processing, and industrial applications, they ensure durability and reliability.
Custom Stainless Steel 321 Hex Bolt is a conformable fastener with a hexagonal head, providing excellent resistance to temperature rise and corrosion, ideal for precision applications in aerospace and industrial applications
Stainless Steel 321 leg bolt features a unique leg design for enhanced stability, providing excellent high-temperature and corrosion resistance. It is ideal for securing components in demanding industrial and aerospace environments.
Stainless Steel 321 expansion anchor bolt is designed for anchoring in concrete or masonry, offering superior high-temperature and corrosion resistance. It expands upon installation, ensuring secure and reliable fastening in harsh conditions.
Stainless Steel 321 hex flange head bolt features a hexagonal head with an integrated flange, providing high-temperature and corrosion resistance. Ideal for secure clamping in industrial and aerospace applications.
Stainless Steel 321 full threaded bolts are high-temperature resistant fasteners with continuous threading. They offer excellent corrosion and oxidation resistance, making them suitable for demanding industrial and aerospace applications.
All the required documentation, which are commercial invoice, packaging list, heat treatment chart, and quality assurance plan are given with Our Stainless Steel 321 Bolts. Furthermore, NABL-approved lab test reports, MTC, PMI Test Certificates, radiography test reports, and Third-Party Inspection Certificates also accompany to guarantee international standards for quality and satisfaction of our valued customers.
You’ll typically find our Stainless Steel 321 Bolts hard at work in sectors where failure is not an option. They are essential in constructing high-temperature industrial equipment like heat exchangers, boilers, and aircraft exhaust systems. Their resistance to corrosion also makes them a preferred choice for the chemical processing industry and in architectural projects near coastlines. Essentially, they are the go-to fastener for any application that demands unwavering strength and integrity in the face of heat and corrosive elements.
©2024 Niazi Stainless All Rights Reserved.
