Hastelloy C-276 Forged Rings to Eliminate Critical Corrosion Risks in Harsh Industrial Environments
Price:
Negotiable
MOQ:
Negotiable
Delivery Time:
(Sample Order) 7 days
Brand:
DINGSCO
Product Description
Hastelloy C-276 Forged Rings to Eliminate Critical Corrosion Risks in Harsh Industrial Environments
ASTM B564 / UNS N10276 (Hastelloy C-276) nickel alloy forged rings represent a high-performance, high-reliability ring component solution for applications in the most demanding corrosive environments. Through forging, it combines the inherent superior corrosion resistance of C-276 alloy with enhanced mechanical properties, structural integrity, and reliability, making it an indispensable key material in high-end manufacturing, particularly in the chemical, energy, and marine engineering sectors.
When selecting this product, in addition to focusing on chemical composition and mechanical property reports, forging process control, non-destructive testing standards, and complete heat treatment records are equally crucial.
Mechanical Properties
(ASTM B564 Requirements) Forgings are typically delivered in the solution-annealed state (water-quenched at approximately 1121°C). The minimum mechanical properties specified in the standard are typically as follows:
- Tensile Strength (Rm): ≥ 690 MPa
- Yield Strength (Rp0.2): ≥ 283 MPa
- Elongation (A): ≥ 40%
- Hardness: Typically ≤ HRB 100 (Specific values may vary depending on size and thickness)
Heat Treatment
- Solution Treatment: The standard heat treatment condition. Typically, heating and holding at 1120°C to 1177°C, followed by rapid water cooling (quenching). The purpose is to ensure all alloying elements are fully dissolved into the nickel matrix, obtaining a uniform single-phase austenitic structure, thus guaranteeing optimal corrosion resistance and toughness.
- Stress-Relief Annealing: For parts with residual stress generated during manufacturing (such as welding or cold forming), stress-relief annealing can be performed at approximately 900°C, followed by rapid cooling.
Typical Application Scenarios
UNS N10276 forged rings are particularly suitable for the following harsh environments:
- Chemical and Petrochemical Industries: Reactor flanges, high-pressure valves, pump casings, and other components exposed to mixed acids (such as sulfuric acid + hydrochloric acid), organic acids (formic acid, acetic acid), and chloride media
- Pollution Control: Scrubbers, reheaters, fan blades, etc., in flue gas desulfurization systems, subject to long-term contact with wet sulfur- and chlorine-containing waste gases
- Marine and Seawater Desalination: Seawater pipeline systems, heat exchanger end caps, resisting pitting and crevice corrosion under high chloride ion concentrations
- Energy and Aviation: Valves in supercritical power plants, precision load-bearing components in aero-engines, requiring high fatigue life under dynamic loads
Quality Assurance and Procurement Recommendations
To ensure forged rings meet actual working conditions, the following measures are recommended:
- Clarify Technical Specifications: Specify standard version, chemical composition tolerances, mechanical property classification, heat treatment status, and non-destructive testing requirements (ultrasonic + penetrant testing) in procurement contracts
- Select Qualified Suppliers: Prioritize manufacturers with vacuum induction melting + electroslag remelting (VIM+ESR) capabilities to ensure material purity
- Key Points for Delivery Acceptance:
- Verify chemical composition and mechanical property data in Material Quality Certificate (MTC)
- Implement PMI (Positive Material Identification) sampling inspections to verify material authenticity
- Check surface treatment quality, perform pickling or sandblasting if necessary to remove oxide scale
Chemical Composition
| Element | Ni | Mo | Cr | Fe | W | Co | Mn | C | V | P | S | Si |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Minimum(%) | - | 15 | 14.5 | 4 | 3 | - | - | - | - | - | - | - |
| Maximum(%) | Bal. | 17 | 16.5 | 7 | 4.5 | 2.5 | 1 | 0.01 | 0.35 | 0.04 | 0.03 | 0.08 |
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Company
Hunan Dinghan New Material Technology Co., LTD
Location
No. 2319, Building 2, Dongfang Furong Garden, No. 582 Yuanda 1st Road, Hehuayuan Street,Furong District, Changsha, Hunan Province, China.
Contact Person
Julia Wang