AMS 5622 is a common stainless steel alloy known for its superior strength, corrosion resistance, and durability. This alloy is widely used in various industries, including aerospace, automotive, and medical. This blog post will closely examine the composition, physical and mechanical properties, hardness, heat treatment, and uses of AMS 5622 material.
What is AMS 5622?
AMS 5622 (also known as 17-4 PH Stainless Steel) is a specification created by the Aerospace Material Specification Committee for manufacturing stainless steel bars, wire, and forgings. The material must meet certain requirements for chemical composition, mechanical properties, and surface quality to ensure high strength and corrosion resistance. It is commonly used in the aerospace, defence, and medical industries, where precision and reliability are crucial. Understanding the specifications of AMS5622 is essential for manufacturers and engineers who use stainless steel in their products. This specification has been carefully crafted to guarantee that the stainless steel products meet the highest quality standards, making them a dependable and crucial component in many applications.
What Form is AMS 5622 Available at Piping Mart?
- Screws
AMS 5622 Composition
The AMS 5622 alloy is considered a low-carbon martensitic stainless steel with a high level of chromium and molybdenum content. The alloy also contains small amounts of manganese, nickel, and silicon. The carbon content is kept low to avoid any possible corrosion issues associated with carbon.
| Chemical Element | % Present |
|---|---|
| Carbon (C) | 0.0 – 0.07 |
| Chromium (Cr) | 15.00 – 17.00 |
| Manganese (Mn) | 0.0 – 1.50 |
| Silicon (Si) | 0.0 – 0.70 |
| Phosphorous (P) | 0.0 – 0.04 |
| Sulphur (S) | 0.0 – 0.03 |
| Nickel (Ni) | 3.00 – 5.00 |
| Copper (Cu) | 3.00 – 5.00 |
| Molybdenum (Mo) | 0.0 – 0.60 |
| Niobium (Columbium) (Nb) | 0.0 – 0.45 |
| Iron (Fe) | Balance |
AMS 5622 Physical Properties
AMS 5622 welding wire boasts excellent physical properties, including a high melting point of 1399–1454°C, a density of 7.73g/cm³, and a thermal conductivity of 24 W/mK. The alloy has an austenite/ferrite dual-phase structure, enhancing strength and toughness. AMS 5622 can withstand high temperatures and resist wear, erosion, and fatigue.
| Physical Property | Value |
|---|---|
| Density | 7.75 g/cm³ |
| Thermal Expansion | 10.8 x10^-6 /K |
| Modulus of Elasticity | 196 GPa |
| Thermal Conductivity | 18.4 W/m.K |
| Electrical Resistivity | 0.8 x10^-6 Ω .m |
AMS 5622 Mechanical Properties
The mechanical properties of AMS 5622 material are impressive, making it an ideal material for demanding applications. The alloy has a tensile strength of 2077 MPa, yield strength of 1569 MPa, and elongation of 9%. AMS 5622 is also highly resistant to hydrogen embrittlement, making it suitable for harsh environments.
| Properties | Metric | Imperial |
|---|---|---|
| Shear modulus | 77.4 GPa | 11200 ksi |
| Elastic modulus | 190-210 GPa | 27557-30458 ksi |
| Poisson’s ratio | 0.27-0.30 | 0.27-0.30 |
| Hardness, Brinell | 352 | 352 |
| Hardness, Knoop (estimated from Rockwell C) | 363 | 363 |
| Hardness, Rockwell C | 36 | 36 |
| Hardness, Vickers (estimated from Rockwell C) | 349 | 349 |
AMS 5622 Equivalents
| AISI 630 | ASTM A693 (630) | AMS 5342 | MIL-S-81506 |
| AMS 5604 | ASTM A705 (630) | AMS 5343 | SAE J467 (17-4PH) |
| AMS 5622 | MIL C-24111 | AMS 5344 | ASME SA705 |
| AMS 5643 | MIL P-47183 | AMS 5355 | ASME SA564 |
| ASTM A564 (630) | MIL S-81591 | AMS 5825 |
AMS 5622 Uses
AMS 5622 sheet plates is a versatile alloy used in various industries where strength, durability, and resistance to corrosion are critical. It is commonly used in the aerospace and defence industries, where it is used for the manufacturing of bearings, gears, and other components that require high strength and toughness. AMS 5622 is also used in the automotive industry for brake rotor hubs and other critical components. It is also utilized in the medical industry, where its anti-corrosion properties make it useful for surgical instruments.
AMS 5622 Hardness
AMS 5622 is impressive, with a Rockwell hardness of C43. This makes the alloy highly resistant to deformation, wear, and scratches. The hardness also ensures the alloy maintains its shape under high stresses and extreme conditions.
AMS 5622 Heat treatment
Heat treatment can be used to improve the mechanical properties of AMS 5622. Heat treatment can harden the alloy to increase its strength and durability. Heat treatment involves heating the alloy to 980°C and quenching it in oil or air. This process results in the formation of martensite, which gives the alloy its strength and toughness.
Conclusion:
AMS5622 is a high-performance stainless steel alloy with excellent mechanical and physical properties. Its composition, hardness, and heat treatment make it an ideal material for various aerospace, automotive, and medical applications. Understanding the properties and potential of AMS 5622 material is key to its successful application in demanding environments. As technology advances, the continued use of AMS 5622 is expected, making it a critical material in modern industries.
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.
