K403 Cast Nickel Superalloy Supplier | Turbine Blade Casting | Shanghai Hangbo Alloy Group
Date: 2026年7月3日 Categories: News Views: 34
Excerpt:
Shanghai Hangbo Alloy Group supplies K403 cast nickel superalloy per Chinese Aviation Standard HB5155. Expert in turbine blade and vane castings. ISO 9001:2015. Quote in 10 min.
By Shanghai Hangbo Alloy Group Co., Ltd. | ISO 9001:2015 Certified | 2026

Quick Answer: What Is K403 Alloy?
K403 is a precipitation-strengthened nickel-based cast superalloy developed by the Beijing Institute of Aeronautical Materials (BIAM) and standardized under Chinese Aviation Standard HB5155-1996. Its chemistry features high aluminum (5.7%), moderate chromium (11%), and additions of cobalt (5.3%), tungsten (5.2%), and molybdenum (4.2%), producing a dense γ′ precipitate network that delivers excellent creep-rupture strength and thermal fatigue resistance at temperatures up to 950°C (1740°F). K403 has been the backbone casting alloy for blades and vanes in Chinese turbojet, turboprop, turboshaft, and turbofan series engines for decades.
Key standard: HB5155-1996 (Chinese Aviation Standard) | Developed by: Beijing Institute of Aeronautical Materials
Key Advantages
| Channel | Details |
|---|---|
| Website | www.nickel-alloy.com |
| specialalloy001@gmail.com | |
| hangbo@nickel-alloy.com | |
| WhatsApp / Phone | +86 13611656360 |
| Skype | +86 13611656360 |
| Address | Shanghai, China |
Inquiry response within 10 minutes. Custom investment castings and OEM/ODM supported. Delivery to 32 countries worldwide.
Related grades: Inconel 713C (UNS N07713) | Inconel 718 (UNS N07718) | Nimonic 80A | Inconel 625 (UNS N06625)
Shanghai Hangbo Alloy Group Co., Ltd. — Founded 2012 | ISO 9001:2015 | Specialist in Nickel Superalloys & Precision Investment Castings










