ZYTC Alloy is a professional China nickel alloy manufacturer and supplier, providing AMS 5873 Hastelloy S (UNS N06635) sheet, strip and plate with full material test certificates. We support custom cutting, surface finishing and size customization for aerospace, gas turbine and chemical processing projects. Get a Custom InquirySend us your drawing, dimensions. The ZYTC Alloy technical team will provide professional material recommendations and a competitive quotation within 24 hours. 📧 Email: daisy@zytcsteel.com 📲 WhatsApp: +86 17335753350 |  |
AMS 5873 specification defines corrosion and heat-resistant nickel base alloy in sheet, strip and plate form. Hastelloy S (UNS N06635) features balanced alloy composition: 15.8% Chromium, 15.2% Molybdenum, 0.30% Aluminum and 0.05% Lanthanum. This nickel alloy delivers outstanding thermal stability, low thermal expansion and superior oxidation resistance up to 2000°F (1093°C). It maintains good strength and ductility after long-term aging within 427°C ~ 871°C, and possesses reliable thermal fatigue performance for extreme service conditions.
Chemical Composition (Typical, wt%)| Element | Content |
|---|
| Ni | Balance | | Cr | 15.8 | | Mo | 15.2 | | Al | 0.30 | | La | 0.05 |
Key Properties of Alloy S UNS N06635- Excellent oxidation resistance up to 2000°F (1093°C)
- Low thermal expansion coefficient and stable thermal performance
- Good high-temperature strength and thermal fatigue resistance
- Retains ductility after aging at 427°C – 871°C
- Great resistance against high-sulfur corrosive environments
- Certified to AMS 5873 aerospace material standard
Available Product Forms from ZYTC Alloy| Product Type | Available Options |
|---|
| Sheet | Custom thickness, flat cut pieces | | Strip | Slit width, annealed condition | | Plate | Heavy plate, blank cutting, surface grinding |
ApplicationsAerospace Sector- Jet engine combustor components
- Afterburner parts
- Turbine shrouds
- High-temperature heat shields
Industrial Sector- Land-based gas turbine components
- High-temperature industrial furnace hardware
- Chemical processing equipment for aggressive corrosive media
Fabrication Guidance- Forming: Annealing treatment is required to optimize workability during cold forming
- Welding: Match Hastelloy S welding filler metals; post-weld heat treatment can recover material properties when needed
- Quality Inspection: ZYTC Alloy carries out tensile test, yield strength, elongation test and non-destructive examination as required by AMS 5873
Material Comparison| Alloy Grade | Main Feature Difference |
|---|
| Hastelloy S UNS N06635 | Low thermal expansion, superior oxidation & sulfur corrosion resistance | | Hastelloy X UNS N06002 | Widely used high-temperature alloy, different oxidation performance and chemical composition | | Inconel Series Nickel Alloys | Good high-temperature performance; Hastelloy S outperforms in high-sulfur corrosive service |
Compliance & Quality Assurance- Fully meets AMS 5873 aerospace specification
- Optional ASTM / ASME supplementary certifications
- Complete chemical, mechanical and microstructure testing before delivery
- ZYTC Alloy provides MTC material test certificates for every batch
Limitations to Note- Raw material cost is relatively high due to high nickel content and specialized melting process
- Oxidation performance will degrade when operating temperature exceeds ~1200°C (ceramic materials are recommended for ultra-high temperature scenarios)
ZYTC Alloy AdvantageAs a trusted Chinese nickel alloy supplier, ZYTC Alloy stocks standard Hastelloy S sheet, strip and plate. We provide precision cutting service and strict aerospace-grade quality control. Small trial orders and bulk project orders are both welcome. Contact us to get quotation and material datasheet for AMS 5873 UNS N06635. 📧Email:daisy@zytcsteel.com 📲WhatsApp: +86 17335753350 |