Andre Stainless is a top manufacturer and supplier of Stainless Steel 17-4 PH Fasteners in Pulau Ujong, Singapore. Our fasteners are designed for critical applications that need high strength, hardness, and resistance to corrosion. SS 17-4 PH (precipitation hardening) fasteners provide excellent mechanical properties and stability after heat treatment. They come in bolts, nuts, screws, and custom fasteners, making them perfect for the aerospace, defense, marine, and energy sectors. Andre Stainless offers 17-4 PH fasteners in different sizes and conditions (such as H900, H1025), ensuring they perform well in tough environments throughout Singapore and Southeast Asia.
Stainless Steel 17-4 PH contains about 15–17.5% chromium, 3–5% nickel, 3–5% copper, and 0.15–0.45% niobium. It achieves tensile strengths of 930–1310 MPa and yield strengths starting at 860 MPa after heat treatment. This martensitic precipitation-hardening alloy offers excellent fatigue resistance, high hardness (up to 44 HRC), and moderate corrosion resistance in marine and chemical environments. SS 17-4 PH fasteners are magnetic and keep their stability under stress. They are typically supplied in conditions like H900, H1025, and H1150, depending on the required mechanical strength.
| 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 are commonly used in aerospace, offshore oil platforms, nuclear reactors, chemical processing, and medical devices because of their strength and resistance to corrosion. These fasteners excel in marine settings, pump shafts, pressure vessels, and high-speed turbines. In defense and aviation, they secure structural assemblies and engine parts. They are also favored in precision machining tasks for their stability and hardness after aging. Andre Stainless provides 17-4 PH fasteners in different head styles, threads, and finishes, ensuring reliable performance in high-stress, high-temperature, or corrosive applications within Singapore’s toughest industries.
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