AMS 5529 is a type of austenitic stainless steel known for its high corrosion resistance and excellent mechanical properties. It is a popular material in the aerospace, medical, and oil and gas industries due to its durability and strength. This blog post will explore AMS5529’s composition, physical and mechanical properties, hardness, and heat treatment.
What is AMS 5529?
AMS 5529 (also known as 17-7 PH Stainless Steel) is a specific type of steel widely used in the Aerospace industry. Being one of the most sturdy and durable materials, steel has been the foundation for many high-quality construction products. AMS5529 features unique properties, such as exceptional resistance to corrosion, fatigue, and wear, making it an ideal material for aircraft components. Moreover, this type of steel is known for its ability to withstand extreme temperatures, allowing it to perform well in harsh environmental conditions. Its properties make it an important material in the aviation industry, ensuring the quality and safety of aircraft for many years to come.
AMS 5529 Composition
AMS 5529 comprises varying amounts of iron, carbon, nickel, and chromium. Its chemical composition is as follows: carbon (max 0.08%), manganese (max 2.00%), phosphorus (max 0.045%), sulfur (max 0.030%), silicon (max 1.00%), chromium (17.0%-19.0%), nickel (9.0%-11.0%), and iron (balance). Adding nickel and chromium to the alloy gives it excellent resistance to corrosion and oxidation.
| 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 |
AMS 5529 Physical Properties
AMS 5529 has a density of 0.289 lbs/in^3 and a melting point of 2500°F. It has a specific heat capacity of 0.11 BTU/lb-°F and a thermal conductivity of 9.4 BTU/hr-ft-°F. Its electrical resistivity is 28.3 ohms-coil/ft.
| Properties | Metric | Imperial |
|---|---|---|
| Density | 7.80 g/cm3 | 0.282 lb/in3 |
AMS 5529 Mechanical Properties
AMS 5529 is a high-strength material with excellent mechanical properties. It has a tensile strength of 155 ksi and a yield strength of 75 ksi. Its elongation is 35%, and its hardness is 33 HRC. It also has good impact resistance at low temperatures.
| 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 |
AMS 5529 Equivalents
| AISI 631 | AMS 5528 | AMS 5529 | AMS 5568 | AMS 5644 |
| AMS 5678 | ASTM A313 (631) | ASTM A564 (631) | ASTM A579 (631) | ASTM A693 (631) |
| ASTM A705 (631) | DIN 1.4568 | MIL S-25043 | DIN 1.4568 | AMS 5673 |
| AMS 5824 | ASME SA705 | ASTM A579 (grade 62) | MIL SPEC MIL-W-46078 | SAE J217 |
| SAE J467 |
AMS 5529 Uses
AMS 5529 is commonly used in the aerospace industry for applications such as aircraft engine components, turbine blades, and structural support components. It is also used in the medical industry for surgical implants and instruments due to its biocompatibility and corrosion resistance. In the oil and gas industry, it is used in downhole tools, valves, and pumps due to its resistance to corrosion and erosion.
AMS 5529 Hardness
AMS 5529 is a relatively hard material with a hardness of 33 HRC. Due to its hardness, it can resist wear and abrasion, making it suitable for applications that require high wear resistance.
AMS 5529 Heat treatment
AMS 5529 is typically heat treated at a temperature range of 1850-2050°F, followed by rapid cooling in water or air. This process is called annealing and helps to improve the material’s ductility and toughness. Alternatively, it can be heat treated at elevated temperatures ranging from 1000-1200°F for stress relief.
Conclusion:
AMS 5529 material is a high-performance material with excellent mechanical and physical properties, making it suitable for various industrial applications. Its resistance to corrosion, oxidation, and wear makes it popular in the aerospace, medical, and oil and gas industries. Knowing the composition, physical and mechanical properties, uses, hardness and heat treatment of AMS 5529 is essential in selecting the appropriate material for specific applications.
A passionate metal industry expert and blogger. With over 5 years of experience in the field, Palak brings a wealth of knowledge and insight to her writing. Whether discussing the latest trends in the metal industry or sharing tips, she is dedicated to helping others succeed in the metal industry.
