Ranya Stainless, located in Muscat, Oman, specializes in providing top-notch 17-7 PH stainless steel pipes that offer a fantastic blend of robust mechanical performance, impressive corrosion resistance, and versatility for various industrial applications. The 17-7 PH alloy (UNS S17700) is a precipitation-hardening stainless steel, with a typical chemical makeup that includes around **16–18% chromium, 6.5–7.8% nickel, and 0.75–1.5% aluminum**, along with carbon levels at ≤ 0.09% and trace amounts of manganese, silicon, phosphorus, and sulfur. ([Alfa Chemistry Alloys][1])
In its annealed (soft) state, 17-7 PH is easy to form and quite ductile, comparable in workability to the more common 300-series stainless steels. Once it undergoes the right heat treatment (like age-hardening or tempering), it achieves **exceptionally high tensile strength and hardness**, along with improved fatigue resistance. ([K-Tube Technologies][2]) Even after hardening, it retains decent corrosion resistance in fresh water, industrial environments, and mild marine or chemical settings, although it’s not the best choice for long-term exposure to salt water or harsh reducing conditions. ([ASM Aerospace Specification Metals][3])
| Standard | 17-7PH / 1.4568 |
|---|---|
| Size | 1/8” to 48”, Seamless Pipes up to 24” |
| Designation | ASTM A312, ASME SA312, ASTM A269, ASTM A213, ASTM A249, ASTM A270, ASTM A511, ASTM A554, ASTM A778, ASTM A908, ASME SA249 |
| Thickness | 0.4mm up to 30.00 mm, Schedules 5, 10S, 10, 30, 40S, 40, 80, 80S, XS, 160, XXH |
| Type | Seamless, Welded, Cold Drawn, Structural, Hot Finished, Extruded, Annealed & Pickled |
| Form | Round, Square, Rectangular |
| Length | Standard 6-6.1 meter length, 20 Ft, Custom Cut Lengths |
| Application | Variety of springs and washers, Chemical processing equipment, Heat exchangers, Power boilers, Superheater tubes, Components used in high-strength/high-temperature conditions. |
| Element | Content (%) |
|---|---|
| Chromium, Cr | 16-18 |
| Nickel, Ni | 6.50 – 7.75 |
| Manganese, Mn | 1 max |
| Silicon, Si | 1 max |
| Aluminum, Al | 0.75 – 1.50 |
| Carbon, C | 0.09 max |
| Phosphorous, P | 0.040 max |
| Sulfur, S | 0.030 max |
| Iron, Fe | Balance |
| Properties | Metric | Imperial |
|---|---|---|
| Tensile strength | 1170 MPa | 170000 psi |
| Yield strength | 965 MPa | 140000 psi |
| Modulus of elasticity | 204 GPa | 29600 ksi |
| Poisson’s ratio | 0.27-0.30 | 0.27-0.30 |
| Elongation at break | 6% | 6% |
| Hardness, Rockwell C | 38 | 38 |
Contact us to get a quick quote for your requirement.
We tests Stainless Steel 17-7 PH pipes to the utmost extent to assure superior quality and performance. All batches are strictly inspected, and mechanical property tests, corrosion resistance checks, and dimensional accuracy checks are performed on each batch. Pipes are supplied with test certificates that are in compliance with industrial standards.
High-quality 17-7 PH stainless steel pipes offer exceptional strength, corrosion resistance, and durability. Perfect for demanding industrial applications, they provide reliable performance in extreme conditions and harsh environments.
ASTM A312 SS 17-7 PH ERW pipes deliver outstanding strength and corrosion resistance. Ideal for high-stress applications, they ensure durability and reliable performance in challenging industrial environments and applications.
Stainless Steel 17-7 PH capillary pipes offer superior strength and corrosion resistance. Ideal for precision applications, they ensure reliability and durability in demanding environments, combining high performance with long-lasting quality.
SS 17-7 PH spiral welded pipes offer high strength and corrosion resistance, ideal for aerospace and industrial applications. Their spiral weld construction enhances durability and performance in demanding environments.
17-7 PH SS electropolished pipes offer superior corrosion resistance and a smooth finish. Ideal for sanitary and high-performance applications, they provide enhanced durability and reliability in demanding environments.
SS 17-7 PH slot round pipes feature exceptional strength and corrosion resistance with precision slots. Ideal for structural and filtration applications, they ensure durability and high performance in demanding conditions.
Stainless steel 17-7 PH pipes are ideal for situations where you need a mix of **strength, corrosion resistance, and fatigue/wear resistance**. Common uses include piping in chemical processing plants, heat exchangers, pressure vessels, industrial process tubing, and structural components that face cyclic loading or high stress. Their ability to be easily formed or fabricated in a soft state and then hardened to achieve high strength makes them perfect for applications that require complex shapes or further machining.
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