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At Poang Fasteners, we are the leading manufacturer and supplier of Stainless Steel 321/321H fasteners in Da Nang, Vietnam. Our fasteners are designed for high temperature applications, providing excellent corrosion resistance and durability. Ideal for use in aerospace, automotive, petrochemical and other industries, our stainless steel 321/321H fasteners meet stringent quality standards to ensure reliable performance in difficult environments. Trust us for a perfectly crafted relationship that delivers consistent and long-lasting results.
Stainless Steel 321/321H Fasteners consist of iron, chromium (17–19%), nickel (9–12%), and stabilizers of titanium, which resist intergranular corrosion and provide high-temperature oxidation resistance. 321H has greater carbon content and enhances creep strength and tensile properties at high temperatures. The fasteners show strong mechanical strength, toughness, and resistance to scaling, with sustaining properties in cyclic heating. Their strong makeup guarantees long-term performance under harsh conditions and thus are well-suited for aerospace parts, automotive exhaust systems, and high-temperature chemical processing equipment that require heat resistance and corrosion protection.
| Standard | ASTM A193,A194 / ASME SA193,SA194 |
| Standard | DIN, ASTM, BS and all International Standards |
| Length | 3 mm to 200 mm |
| Size | M3 – M56 | 3/6″ to 2″ | Custom Sizes |
| Grade | C | Mn | Si | P | S | Cr | N | Ni | Ti |
| SS 321H | 0.04 – 0.10 | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 17.00 – 19.00 | 0.10 max | 9.00 – 12.00 | 4(C+N) – 0.70 max |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 8.0 g/cm3 | 1400 °C (2550 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
To satisfy our clients needs by providing high quality products at competitive price as per the schedule and to maintain long term relationship with our clients.
321/321H Stainless Steel Fasteners find extensive application in corrosive as well as high-temperature conditions where strength and durability are essential. In aerospace, they hold together parts that are subjected to extreme heat and vibration. In the automotive sector, they are widely applied in exhaust systems and engine parts. In petrochemical and chemical plants, they withstand corrosion from phosphoric and sulfuric acids, making them reliable over the long term. They are also adequate for pharmaceutical and medical devices, delivering secure fastening under stringent conditions. Their heat resistance, corrosion resistance, and mechanical strength make them perfect for long-term, dependable fastening solutions in advanced industrial applications.
At Poang Fasteners, the quality and integrity of each Stainless Steel 321/321H Fastener are strictly ensured. Each fastener is subjected to detailed inspection and testing, such as Hardness Testing, PMI, Chemical Analysis, Micro and Macro Examination, Pitting Resistance, Flaring, and Intergranular Corrosion (IGC) Tests. Products are carefully wrapped in protective material and stored in clearly marked, strong boxes with detailed specifications and quantities. Thorough documentation in the form of Commercial Invoices, Packing Lists, Certificates of Origin, and Third-Party Inspection Certificates confirms international standards compliance. This detail-oriented process guarantees fasteners reach clients in perfect condition, ready to be installed immediately for tough industrial applications.
Poang Fasteners is a leading manufacturer and supplier of high-quality fasteners in Da Nang, Vietnam, with over 8 years of experience serving global industries.
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