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Poang Fasteners is a leading manufacturer, retailer and exporter specializing in quality stainless steel 304H washers. Our washers are made from premium materials using advanced manufacturing processes to ensure exceptional quality and efficiency. We rely on various industries, and our products meet stringent standards and provide reliable solutions for complex applications. Firmly committed to excellence, we have served the industry with high-quality products since our inception.
Stainless Steel 304H Washers consist of an 18–20% chromium and 8–10% nickel austenitic alloy with a higher content of carbon than 304 and 304L. This added carbon increases tensile strength, creep resistance, and heat tolerance, making them very dependable under high-temperature applications. It has very good durability, oxidation resistance, and corrosion resistance in acidic and oxidizing mediums. With greater toughness, weldability, and long-term stressed performance, 304H washers are best fit for sealing and fastening in high-strength and stability demanding industries in extreme operating environments.
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | |
|---|---|---|---|---|---|---|---|---|---|---|
| 304H | min. | 0.04 | – | – | – | – | 18.0 | – | 8.0 | – |
| max. | 0.10 | 2.0 | 0.75 | 0.045 | 0.030 | 20.0 | – | 10.5 | – | |
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
|---|---|---|---|---|---|
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| 304H | 515 | 205 | 40 | 92 | 201 |
| Grade | Stainless Steel 304, 304H, 304L |
| Specifications | ASTM A193 / ASME SA193 |
| Standard | DIN, ASTM, BS and all International Standards |
| Length | 3mm to 200mm |
| Size | M3 – M56 | 3/6″ to 2″ | Custom Sizes |
| Types | Star Washer, Flat Washer, Lock Washer, Slot Washer, Machine Washer, Sealing Washer, Split Washer, Dome Tooth Washer, Countersunk Washer, Tab Washers, Spherical Washer, Square Washer, Spring Washer, Round Washers, Square Washers |
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.
Stainless Steel 304H Washers are widely used in high-strength, high-temperature, and corrosion-resistant applications. In power generation plants, they are utilized in boilers, turbines, and heat exchangers to provide leak-proof sealing and steady operation. They stabilize equipment in the chemical and petrochemical industries that comes into contact with aggressive chemicals and high temperatures. They also find applications in air filtration systems and pharmaceuticals, where high levels of performance and cleanliness are essential. Through their strength, they can be used to protect and reinforce assemblies in harsh industrial environments, promoting long-lasting reliability, safety, and efficiency in high-performance manufacturing and processing operations.
We at Poang Fasteners perform a full quality test program for Stainless Steel 304H Washers to ensure reliability and customer satisfaction. Every washer goes through hardness testing, spectrochemical analysis, Positive Material Identification (PMI), levelling, micro–macro analysis, pitting resistance tests, and intergranular corrosion (IGC) tests. Complete documentation, including commercial invoices, certificates of origin, details of packaging, and certificates of authenticity, is furnished with each order. In addition to enhancing conformity to international standards, we provide third-party inspection certification. All washers are packaged safely to avoid transit damage, so products reach customers in top condition and ready for instant use in industry.
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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