AMS 5382 UNS R30031 Cobalt-based Alloy

ZYTC Alloy is a Chinese supplier of AMS 5382 UNS R30031 cobalt cast superalloy. Features excellent stress rupture, thermal shock & hot erosion resistance for aerospace gas turbines and high-temperature tooling. Available custom cast components with full MTR certification.

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ZYTC Alloy is a professional Chinese manufacturer and exporter of high-performance cobalt-based superalloys, providing premium AMS 5382 UNS R30031 (Stellite 31 / X-40) investment cast alloy components fully compliant with SAE aerospace standards. As a classic cast cobalt superalloy, UNS R30031 is widely recognized for exceptional high-temperature stress rupture strength, superior thermal shock resistance, and outstanding galling & hot erosion resistance. It serves as a reliable workhorse material for critical aerospace and industrial high-temperature equipment.

Different from conventional high-temperature alloys, the core performance of AMS 5382 Stellite 31 alloy derives from a stable chromium and tungsten carbide network uniformly dispersed in the cobalt matrix. This unique microstructure endows the material with excellent high-temperature strength and hot wear resistance, far exceeding the performance of ordinary alloys in extreme thermal cycling and high-temperature erosion environments, making it irreplaceable for gas turbine and high-temperature tooling applications.

Chemical Composition (Typical wt%)

Strictly manufactured per AMS 5382 standard, precise composition control ensures stable batch performance:

Element	Content Range
Co (Cobalt)	Balance (~54%)
Cr (Chromium)	24.5 – 26.5%
Ni (Nickel)	9.5 – 11.5%
W (Tungsten)	7.0 – 8.0%
C (Carbon)	0.5% (Typical)
Fe (Iron)	≤2.0%

Key Physical & Mechanical Properties

Performance Item	Parameter Value
Density	8.61 g/cm³
Hardness (As-Cast)	25 – 35 HRC
Ultimate Tensile Strength (UTS)	≥740 MPa
Max Oxidation Resistance Temperature	Up to 1150°C (2100°F)
Optimal Stress-Rupture Working Temperature	900°C – 980°C (1700°F – 1800°F)

Applications

AMS 5382 UNS R30031 cobalt-based superalloy is widely used in high-temperature and high-wear core components across aerospace and industrial fields:

Aerospace Industry: Gas turbine hot-section components, supercharger parts, high-temperature engine structural parts
Industrial Power: Industrial gas turbine wearing parts, high-temperature furnace working tools
High-Temperature Tooling: Hot working dies, high-temperature fixtures, wear-resistant structural parts under extreme thermal conditions
Energy & Petrochemical: High-temperature corrosion-resistant and wear-resistant components for thermal energy equipment

ZYTC Alloy Manufacturing Quality Advantages

As a professional Chinese cobalt-based superalloy supplier, ZYTC Alloy strictly follows AMS 5382 aerospace casting specifications for all UNS R30031 products. We implement full-process quality control from raw material smelting, investment casting, heat treatment to finished product inspection:

Full compliance with AMS 5382 standard, complete chemical, mechanical and microstructure testing
Stable carbide structure control to ensure consistent high-temperature performance of each batch
Custom investment casting, precision machining and size customization services
Complete MTR material test certificates, full product traceability
Support small-batch prototype customization and large-scale industrial batch orders

Get Custom Quote

For AMS 5382 UNS R30031 Stellite 31/X-40 cobalt alloy cast parts and custom processing requirements, feel free to contact ZYTC Alloy. Our professional technical team will provide targeted material solutions and competitive quotations within 24 hours.

📧 Email: daisy@zytcsteel.com
📲 WhatsApp: +86 17335753350