455 Stainless Steel (Carpenter Custom 455) – High Strength and Toughness
Introduction to 455 Stainless Steel (Carpenter Custom 455)
455 Stainless Steel, also known as Carpenter Custom 455, is a martensitic age-hardenable stainless steel known for its high strength, toughness, and excellent corrosion resistance. This alloy is particularly useful in industries that require materials capable of maintaining strength and integrity in high-stress environments. Its ability to reach high tensile strength through simple heat treatments makes it highly versatile for aerospace, chemical processing, automotive, and medical applications.
Strength and Hardening Properties
455 Stainless Steel offers excellent mechanical properties, particularly in terms of high tensile and yield strength. The alloy can be age-hardened with a relatively simple heat treatment process, achieving strengths comparable to higher-grade alloys, while maintaining good toughness and ductility. This feature makes it a top choice for components that need to withstand repeated stress and maintain structural integrity over time.
Corrosion Resistance and Durability
One of the significant advantages of Carpenter Custom 455 is its impressive corrosion resistance. While it is similar to other stainless steels like 17-4PH, Custom 455 offers better resistance to stress-corrosion cracking in environments containing chlorides. This makes it a reliable choice for industries requiring corrosion-resistant materials that can perform in harsh environments, such as chemical processing, marine applications, and medical devices.
Applications of 455 Stainless Steel
Due to its combination of high strength, corrosion resistance, and toughness, 455 Stainless Steel is used in a variety of demanding applications across multiple industries:
- Aerospace Components: Ideal for aircraft structures, landing gear, and fasteners requiring high strength and corrosion resistance.
- Oil and Gas Industry: Suitable for valves, shafts, and downhole tools where strength and resistance to harsh environments are critical.
- Automotive Components: Used in high-performance automotive parts such as shafts and springs that require both strength and durability.
- Chemical Processing Equipment: Excellent for pumps, mixers, and other components that face aggressive chemical exposure.
- Marine Applications: Suitable for components exposed to saltwater and corrosive environments, including propellers and pumps.
- Medical Devices: Commonly used in surgical instruments where high strength and corrosion resistance are essential.
Buy 455 Stainless Steel From M. Vincent
At M. Vincent, we supply 455 Stainless Steel (Carpenter Custom 455) in multiple forms, including bar, sheet, and plate, to meet the needs of industries ranging from aerospace to medical. Our team offers competitive pricing, timely delivery, and expert support to ensure you get the best material for your project. Contact us today for more information or to request a quote.
Material is fully certified to AMS 5617 and ASTM F899 (surgical instrument quality) and precision ground to ±.0005
Chemical Data, Mechanical Properties and Specifications for Custom 455® Stainless Steel
| Chemical Range For 455 | ||
|---|---|---|
| Element | Minimum | Maximum |
| Carbon | -- | 0.05 |
| Chromium | 11.00 | 12.50 |
| Copper | 1.50 | 2.50 |
| Iron | Balance | -- |
| Manganese | -- | 0.50 |
| Molybdenum | -- | 0.50 |
| Nickel | 7.50 | 9.50 |
| Niobium | 0.10 | 0.50 |
| Phosphorus | -- | 0.04 |
| Silicon | -- | 0.50 |
| Sulphur | -- | 0.03 |
| Titanium | 0.80 | 1.40 |
| Typical Mechanical Properties for 455 | |||
|---|---|---|---|
| Form | Tensile Strength | Yield Strength | Elongation at Break |
| Annealed Bar | 145 ksi | 103 ksi | 14% |
| Specifications |
|---|
| ASTM F899 |
| AMS 5617 |
| ASTM A564 Gr XM-16 |
| UNS S45500 |