Boikanyo Sheets and Plates, based in Cape Town, South Africa, stands out as a trusted manufacturer and supplier of top-notch **Stainless Steel 17-4 PH Angle** products. These angles are celebrated for their impressive strength, precision, and resistance to corrosion, making them perfect for tough structural and mechanical applications. Boikanyo provides a variety of 17-4 PH angles in different sizes and lengths, customized to fit specific industry needs. With a solid reputation for quality control, timely delivery, and attentive service, Boikanyo caters to clients in sectors like aerospace, marine, defense, and heavy engineering, both locally and globally.
**Stainless Steel 17-4 PH**, or **UNS S17400**, is a remarkable precipitation-hardening martensitic stainless steel alloy that features about **17% Chromium and 4% Nickel**, along with Copper and trace elements. It’s well-known for its **high strength, hardness, and corrosion resistance**, particularly after heat treatment (H900 to H1150). This material can achieve **tensile strengths of up to 1310 MPa** and boasts excellent mechanical properties in both transverse and longitudinal directions. Its unique blend of weldability, machinability, and dimensional stability makes it a go-to choice for precision-engineered components where strength and corrosion resistance are paramount.
Specifications : ASTM A276, ASTM A479 / ASME SA276, ASME SA479
Angle Size Range : 20 x 20 mm to 100 x 100 mm
Angles Thickness : 3 to 12 mm (depending on size)
Channel Size Range : Base: 80 to 150 mm; Side: 40 to 75 mm
Channel Thickness: 5 to 6 mm (depending on size)
Length : 3MTR, 4MTR, 5MTR, 6MTR, or Custom Cut Sizes
| Grade | C | P | Si | Ni | Cu | Fe | Mn | S | Cr | Cb+Ta |
| SS 17-4 PH | 0.07 | 0.04 | 1.0 max | 3.0 – 5.0 | 3.0 – 5.0 | Bal | 1.0 max | 0.03 | 15.0 – 17.5 | 5 X C / 0.45 |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 7.95 g/cm3 | 1350 °C (2460 °F) | Psi – 71000 , MPa – 490 | Psi – 32000 , MPa – 220 | 35 % |
| STANDARD | WERKSTOFF NR. | UNS |
| SS 17-4 PH | 1.4542 | S17400 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Stainless Steel 17-4 PH Angles find extensive use in **structural supports, frames, brackets, machine parts, and reinforcement systems** across industries that demand high performance under load and in corrosive environments. These angles are particularly well-suited for **aerospace assemblies, offshore platforms, pump shafts, food processing equipment**, and **military hardware**, where reliability and resistance to stress corrosion cracking are essential. They maintain their strength and toughness across a wide range of temperatures, ensuring they meet the rigorous demands of various applications.
The stainless steel 17-4 PH angle (Precipitation Hardening) surface offers several advantages. It combines high strength with excellent corrosion resistance, especially in harsh environments such as chemical and marine applications. Its excellent room and high temperature mechanical properties make it ideal for aerospace, the oil and gas industry and food processing. The alloy also exhibits improved stability and resistance to stress corrosion cracking. Moreover, 17-4 PH stainless steel is easily machined and can be heat-hardened, providing flexibility in a variety of industrial applications and providing durability and versatility it is reliable in complex materials.
Stainless steel 17-4 pH (precipitation hardening) Angle is widely used in applications requiring high strength, corrosion resistance and good mechanical properties It is commonly used in aerospace, medical, nuclear and marine applications, where it components close to hard surfaces. The alloy is ideal for manufacturing shafts, valves, pumps, gears and structural components. Its ability to withstand high temperatures and its resistance to pitting and crevice corrosion makes it suitable for use in harsh environments including heat exchangers and turbine components.
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