Lecong Stainless is a reputable manufacturer and supplier based in Da Nang, Vietnam, known for delivering top-notch Stainless Steel 17-4 PH Fasteners that offer a perfect blend of strength, durability, and resistance to corrosion. These fasteners, made from precipitation-hardening stainless steel, are designed to perform exceptionally well in tough environments, making them a go-to choice for industries like aerospace, marine, petrochemical, power generation, and chemical processing. With a commitment to international standards, Lecong Stainless guarantees precision in design, outstanding dimensional accuracy, and long-lasting reliability, making their Stainless Steel 17-4 PH Fasteners perfect for both structural and high-stress industrial applications.
These fasteners consist of 17% chromium and 4% nickel, along with copper and niobium additions that facilitate precipitation hardening. They boast impressive tensile strength ranging from 1000 to 1200 MPa, yield strength between 800 and 1000 MPa, and an elongation of 10 to 20%, depending on the heat treatment (H900–H1150). Notably, these fasteners retain their toughness and hardness even at elevated temperatures and offer excellent resistance to stress corrosion cracking, pitting, and oxidation, ensuring they remain dependable in harsh conditions.
| Specifications | ASTM A 193 / ASME SA 193 |
| Standard | DIN, ISO ,JIS ,GB, IS, BS, ASTM and all International Standards |
| Size | M3 – M100 | 3/6″ – 4″ | Custom Sizes |
| Fasteners Length | 3 mm – 200 mm | Custom Sizes |
| Nuts Size | M3 – M56 | 3/6″ to 2″ | Custom Sizes |
| Washers Size | M3 – M56 | 3/6″ to 2″ | Custom Sizes |
| Dimensions | DIN 931, 933, 934, 7991, 976, 125, ASME B18.2.1, B18.3 |
| Threads available | UNF, BSW, BSF, METRIC, UNC, or as required |
| Threads Configuration | ASME B1.1 2A/3A – 2B/3B Inch Unified Threads and B1.13M 6h-6G Metric Coarse Threads |
| Form | Hex, Threading, Square, Round as per Gauge Etc. |
| Head | Hex, Square, Round, Hex flange, Flat, T-head & Triangular etc. |
| Neck type | Hex, Square, Triangular, Oval & Knurled etc. |
| Surface Coating | Black Oxide, Cadmium, Galvanized, Teflon, Xylan, Zinc, Others Upon Request |
| Manufacturing Process | Wire Drawing, Cold Heading, Insert tapping, Heat Treatment, Surface Plating, Inspection, Packing. |
| Grade | C | Cb+Ta | Cr | Cu | Fe | Mn | Ni | P | S | Si |
| SS 17-4 PH | 0.07 max | 0.15-0.45 | 15.00-17.50 | 3.00-5.00 | Bal | 1.0 max | 3.0-5.0 | 0.40 max | 0.03 max | 1.0 max |
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Stainless Steel 17-4 PH Nuts Known for excellent corrosion resistance, Stainless Steel 17-4 PH nuts are typically used in aerospace and industrial applications. They come in various sizes. Usually, the dimensions are M2 to M36 and conform to standard nut sizes.
17-4 PH stud bolts are ideal for high-stress environments and offer high corrosion resistance. Depending on application requirements, they are available in sizes ranging from M4 to M30, with lengths varying from 20mm to 1000mm.
These bolts provide strong corrosion resistance and are commonly used in structural applications. Available in sizes from M5 to M36, with standard lengths ranging from 10mm to 200mm, they meet various industrial and military standards.
Stainless Steel 17-4 PH threaded rods Known for excellent corrosion resistance, 17-4 PH threaded rods are used in high-strength applications. They are available in diameters from M6 to M36 and lengths from 100mm to 3000mm, suitable for various structural needs.
Offering high corrosion resistance, 17-4 PH screws are suitable for harsh environments. They come in sizes from M2 to M16, with lengths from 6mm to 100mm, meeting diverse application standards.
These washers are highly corrosion-resistant, making them ideal for marine and aerospace applications. Available in diameters from M3 to M36, they come in various thicknesses to fit different bolt sizes.
Stainless Steel 17-4 PH Fasteners are rigorously tested by us for their quality and reliability. The tests involve verification of the material composition, mechanical property checks, and assessments of the dimensions. Also third-party inspections can be offered for extra assurance when needed. With a strong focus on quality and efficiency we ensure swift delivery of our fasteners according to different industry requirements keeping the highest standards of performance and customer satisfaction.
Stainless Steel 17-4 PH Fasteners find extensive use in aerospace components, marine equipment, offshore platforms, chemical processing plants, and defense applications. They are perfect for securing machinery, structural assemblies, pressure vessels, turbines, and other high-performance systems that face corrosive or high-stress environments. In marine and offshore settings, they effectively resist seawater corrosion, while in aerospace and power generation, they deliver consistent performance under extreme conditions. With their exceptional mechanical properties, durability, and versatility, Stainless Steel 17-4 PH Fasteners are a trusted solution for critical fastening needs across various industries.
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