Hastelloy C276 Flanges Supplier in China
Key Benefits
- Extreme Corrosion Resistance:
They resist aggressive chemicals like wet chlorine gas,ferric chlorides,hypochlorites,and chlorine dioxide. - No Pitting or Cracking:
The high molybdenum content provides exceptional resistance to localized pitting, crevice corrosion,and stress corrosion cracking. - Withstands Acid Environments:
They offer excellent survivability in harsh reducing environments like hydrochloric,sulfuric,and phosphoric acids. - High Temperature Strength:
They maintain structural integrity and mechanical strength at extreme operating temperatures. - Excelente soldabilidade:
Low carbon content minimizes carbide precipitation during welding,keeping joints strong and corrosion-resistant.
Common Types of Flanges
- Flange de Pescoço de Solda:
Feature a tapered hub for high-pressure and severe-service systems. - Flange deslizante:
Slipped over the pipe and welded inside and out for easier alignment in lower-pressure lines. - Flange Cego:
Solid discs used to seal off the end of a piping system or pressure vessel. - Flange de solda de soquete:
Ideal for smaller pipe diameters in high-pressure applications. - Flange roscada:
Connected via internal threads,requiring no welding for installation.
Designações equivalentes ao Hastelloy C276
| Padrões | UNS | DIN / W.Nr. | PT | JIS | GOST | AFNOR | BS | GB |
|---|---|---|---|---|---|---|---|---|
| C276 | N10276 | 2.4819 | NiMo16Cr15W | NW 0276 | EP760 / XN65MVU | NC15D14KFe | NA 45 | GB/T 15018 |
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Dimensions of Our Flanges
Flange Padrão
Fornecemos flanges de aço inoxidável em vários padrões, incluindo, entre outros, os seguintes:
ASME/ANSI B16.5, B16.47A/B, ASME B16.36, MSS SP-44, ISO7005-I, API tipo 6B/6BX, API605, GB9112~9124, BS1560-3.1,
EN 1092-1 (DIN2527, 2636, 2637, 2638, 2566, 2576, 2632, 3633, 2635, 2642, 2653, 2656, 2655, etc.)JIS B2220, AS2129, AS4078, GOST 33259, GOST 12820/12821, GOST 12816 etc.
A Capacidade
É de cerca de 400 toneladas/mês para cada tipo de flanges. Produzimos e fornecemos os flanges da Classe 150 a Classe 2500, os flanges de aço inoxidável e aço duplex são nossa força.Taxa: 150 LIBRAS, 300 LIBRAS, 600 LIBRAS, 900 LIBRAS, 1500 LIBRAS, 2500 LIBRASDimensão: 1/2" a 72" (DN15 ~DN1800)
Chemical Composition of Hastelloy C276 Flanges, wt.%
| Elemento | Ni | Mo | Cr | Fe | C | Co | Mn | V | Si | P | S | C |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| C276 | Equilíbrio | 15,0 – 17,0 | 14.5 – 16.5 | 4.0 – 7.0 | 3,0 – 4,5 | ≤ 2.5 | ≤ 1.0 | ≤ 0.35 | ≤ 0.08 | ≤ 0.04 | ≤ 0.03 | ≤ 0.01 |
Mechanical Properties of Hastelloy C276 Flanges
| Propriedade mecânica | Resistência à tracção | Força de rendimento | Alongamento | Dureza |
|---|---|---|---|---|
| Hastelloy C276 | ≥ 790 MPa(115 ksi) | ≥ 355 MPa(52 ksi) | ≥ 40% | ≤ 100 HRB |
Applications of Hastelloy C276 Flanges
- Flue Gas Desulfurization Systems
- Sour Gas Oil and Gas Extraction
- Processamento de ácido clorídrico
- Bleach Plants in Pulp and Paper Mills
- Hazardous Waste Incineration
- Seawater and Marine Engineering
- Sulfuric Acid Production and Alkylation
- Acetic Acid and Fine Chemical Synthesis
- Pharmaceutical Reaction Vessels
- Radioactive Waste Management
The Relationship Between Hastelloy C276 Flanges and Pipes
Mechanical Connection
- The Structural Link:
Pipes are used for long-distance fluid transportation,while flanges are welded or threaded to the ends of those pipes. - Removable Segments:
Two matching flanges bolt together with a gasket in between,allowing separate pipe sections,valves,pumps,and reaction vessels to be connected or disconnected easily for maintenance,cleanouts, or inspections.
Identical Material Metallurgy
- Eliminating Galvanic Corrosion:
Both components share the exact same chemical composition.In highly conductive,corrosive media,using identical metals prevents galvanic corrosion. - No Weak Links:
A corrosive chemical loop is only as strong as its weakest component.If a project justifies the premium cost of Hastelloy C276 pipes,the connecting flanges must match that exact alloy grade to maintain uniform corrosion resistance throughout the system.
Welding Compatibility
- Seamless Joining:
Because the pipe and flange share the same metallurgy,they weld together seamlessly using matching filler metal. - Sem tratamento térmico pós-soldagem:
Both products feature an ultra-low carbon content.During fabrication,the Heat-Affected Zone where the flange meets the pipe will not suffer from carbide precipitation,eliminating the need for costly post-weld heat treatment.
Thermal and Pressure Synchronization
- Thermal Expansion Match:
Under extreme high-temperature or thermal cycling conditions, both the flange and the pipe expand and contract at the exact same rate.This prevents thermal stress build-up at the joint, protecting the gasket from crushed seals or leakage. - Pressure Rating Alignment:
Pipe wall thicknesses are engineered to match standard flange pressure ratings under ASME B31.3 codes to guarantee an equal safety factor across the pipeline.
Unified System Specifications
Frequently Asked Questions
Nickel,molybdenum,and tungsten are inherently expensive and highly volatile commodities.Their high-temperature alloys undergo rapid work hardening,which significantly accelerates tool wear during machining and drilling,making them difficult to machine.
The chemical resistance of the gasket must meet or exceed that of C276.PTFE (Teflon),modified PTFE,or spiral-wound gaskets with Hastelloy C276 winding tape and flexible graphite packing are standard configurations.Never use standard stainless steel inner rings or windings in corrosive acid service.
C22 contains more chromium and performs better in highly oxidative environments.C276,on the other hand,continues to demonstrate excellent performance in highly reductive environments containing localized chlorides and hydrochloric acid.
This alloy can withstand temperatures up to 1093°C (2000°F) in an oxidizing atmosphere.According to the ASME B16.5 Pressure Piping Code, its allowable working pressure decreases progressively when temperatures exceed 38°C (100°F).ASME Section VIII specifies that the maximum temperature for using this material in pressure vessels is 677°C (1250°F) for specific configurations.
Quando você quiser obter uma cotação ou liberar um PO para nós, faça o esclarecimento:
Tipo de flange + RF/RTJ/FF + Classe (incluindo tubo SCH para flange WN e SW) + Tamanho + Material + Padrão + Quantidade pedida
Por exemplo, você quer comprar 100 pcs de flange de pescoço de solda com face elevada para seu sistema e o tubo é SCH40S de 8", a taxa de pressão é classe 300 em aço inoxidável 316, o projeto da tubulação é para ASME, então a descrição seria
Flange WNRF, 8" 300# SCH40S, A182 F316, ASME B16.5, 100PCS
Por favor, não hesite em entre em contato conosco se você tiver alguma dúvida.
Contate-nos
- RM901 No.22 Tangjiaqiao Road Wenzhou China
- +86 577 8551 1171
- [email protected]
- https://www.kaysuns.com/
