High Quality Incoloy Forged Pipe Fittings
800/800HT/825 • Strength • Sealing • Durability
Get a QuotePremium Incoloy 800/800HT/825 Forged Pipe Fittings by Ratnadeep Steel & Engg. Co.
Ratnadeep Steel & Engg. Co. is a leading manufacturer, exporter, & supplier of Incoloy 800 / 800HT / 825 Forged Pipe Fittings. Produced from advanced nickel-iron-chromium alloys, these forged fittings offer excellent resistance to oxidation, carburization, and aqueous corrosion, along with dependable mechanical strength at elevated temperatures.
Incoloy grades 800, 800HT, and 825 are specially developed for long-term service in high-temperature and corrosive environments. These alloys provide strong resistance to stress corrosion cracking, sulfur attack, and acidic media, making forged fittings highly suitable for petrochemical processing, heat treatment equipment, fertilizer plants, offshore platforms, and power generation industries. Our forged pipe fittings are supplied in threaded and socket weld types, ensuring secure, pressure-tight, and vibration-resistant joints.
Engineered for compact piping layouts, efficient flow control, and long-term operational reliability, our Incoloy forged pipe fittings are widely used in heat exchangers, process piping, pressure vessels, boilers, instrumentation systems, and high-temperature industrial applications. Choose Ratnadeep Steel & Engg. Co. for high-quality Incoloy 800 / 800HT / 825 forged fittings that meet international standards and strict quality requirements.
- Alloy 800 / 800H / 800HT / 825 Forged Elbow
- Incoloy 825 Socket Weld Elbow
- UNS N08800 / N08810 Threaded Elbow
- DIN 1.4859 Forged Elbow
- ASME SB564 Incoloy 800HT / 825 45° Elbow
- Incoloy 800HT 90° Forged Elbow
- ASME SB564 Incoloy 800 Socket Weld Tee
- ASTM B564 Incoloy 800H Forged Equal Tee
- DIN 2.4858 Reducing Tee
- UNS N08825 Unequal Tee
- Incoloy 800HT / 825 Reducing Tee
- Alloy 800 / 800H Threaded Equal Tee
- Incoloy 800 Threaded Equal Cross
- UNS N08811 / DIN 2.4858 Forged Cross
- ASME SB564 Incoloy 800H Socket Weld Cross
- Incoloy 800HT Threaded Cross
- Incoloy 825 Reducing Cross
- Alloy 800 / 800H Unequal Cross
- DIN 1.4876 Threaded Full Coupling
- UNS N08800 Forged Full Coupling
- ASME SB564 Socket Weld Full Coupling
- ASTM B564 Alloy 800 / 800H Full Coupling
- ASTM B564 Socket Weld Half Coupling
- UNS N08800 / N08810 Half Coupling
- ANSI B16.11 Threaded Half Coupling
- UNS N08811 Forged Pipe End Cap
- Threaded Incoloy 800 / 800HT / 825 Pipe Cap
- ASME SB564 Incoloy 800HT Forged Cap
- UNS N08800 Socket Weld Union
- ANSI Incoloy 800 Threaded Union
- ASTM B564 Incoloy 800H / 800HT Union
- UNS N08810 Threaded Bushing
- B16.36 Hex Head Forged Bushing
- ASTM / ASME SB564 Incoloy 800HT / 825
- UNS N08825 Threaded Nipple
- ASTM B564 Socket Weld / Swage Nipple
- ASME SB564 Alloy 800 Hex Nipple
- Incoloy 800HT / 825 Screwed Pipe Nipple
CHEMICAL COMPOSITION OF INCOLOY ALLOY FORGED PIPE FITTINGS
| Element | Incoloy 800 | Incoloy 800H | Incoloy 825 |
|---|---|---|---|
| Ni | 30-35 | 30-35 | 38.0 – 46.0 |
| Fe | 39.5 min | 39.5 min | 22.0 min |
| Cr | 19-23 | 19-23 | 19.5 – 23.5 |
| Cu | 0.75 max | 0.75 max | 1.5 – 3.0 |
| Ti | 0.15-0.60 | 0.15-0.60 | 0.6 – 1.2 |
| Al | 0.15-0.60 | 0.15-0.60 | 0.2 max |
| C | 0.1 max | 0.05-0.1 | 0.05 max |
| Mn | 1.5 max | 1.5 max | 1.0 max |
| S | 0.015 max | 0.015 max | 0.015 max |
| Si | 1.0 max | 1.0 max | 0.5 max |
| Mo | – | – | 2.5 – 3.5 |
MECHANICAL PROPERTIES OF ASME SB366 INCOLOY FORGED PIPE FITTINGS
| Grade | Tensile Strength | Yield Strength (0.2% Offset) | Elongation |
|---|---|---|---|
| Incoloy 800/800HT | Psi – 75,000, MPa – 520 | Psi – 30,000, MPa – 205 | 30% |
| Incoloy 825 | Psi – 80,000, MPa – 550 | Psi – 32,000, MPa – 220 | 30% |
SPECIFICATION OF INCOLOY 800/800H/800HT/825 FORGED FITTINGS
| Specifications | ASTM B564 / ASME SB564 |
|---|---|
| Dimension Standard | ASME B16.11, MSS-SP-79, MSS-SP-83, MSS-SP-95, MSS-SP-97, BS3799 |
| Size | 1/8″ NB to 4″ NB |
| Type | Socketweld Fittings, Screwed-Threaded Fittings (NPT or PT Type) |
| Rating Pressure | Threaded End – 2000 / 3000/ 6000 LBS. Socket-weld End – 3000 / 6000/ 9000 LBS. |
800/800HT/825 INCOLOY ASTM B366 FORGED FITTINGS EQUIVALENT GRADES
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN | OR |
|---|---|---|---|---|---|---|---|---|
| Incoloy 800 | 1.4876 | N08800 | NCF 800 | NA 15 | 3M670 | Z8NC32-21 | X10NiCrAlTi32-20 | XH32T |
| Incoloy 800HT | 1.4859 / 1.4876 | N08811 | NCF 800HT | NA 15(HT) | 3M670 | – | X8NiCrAlTi32-21 | XH32T |
| Incoloy 825 | 2.4858 | N08825 | NCF 825 | NA 16 | 3Π703 | NFE30C20DUM | NiCr21Mo | XH38BT |
PHYSICAL PROPERTIES OF INCOLOY 800/800HT/825 PIPE FITTINGS
| Density lbm/in³ | Thermal Conductivity (BTU/h ft. °F) | Electrical Resistivity (in × 10⁻⁶) | Modulus of Elasticity (psi × 10⁶) | Coefficient of Thermal Expansion (in/in)/ °F × 10⁻⁶ | Specific Heat (BTU/lb/ °F) | Melting Range (°F) |
|---|---|---|---|---|---|---|
| at 68°F: 0.285 | 9.4 at 212°F 12.4 at 932°F |
28.3 at 68°F 39.4 at 752°F 49.6 at 1652°F |
28 | 9.4 at 32 – 212°F 10.2 at 32 – 1000°F 10.4 at 32 – 1500°F |
0.1200 at 68°F to 212°F | 2500 to 2590 |
💡 Practical Difference in Use
Use Incoloy 800/800HT/825 Forged Pipe Fittings when: excellent resistance to oxidation, carburization, and aqueous corrosion is required along with stable mechanical strength at elevated temperatures. These nickel-iron-chromium alloys are engineered for long-term service in corrosive and high-temperature industrial environments where compact, pressure-tight connections are essential. → Example: petrochemical plants, fertilizer units, heat exchangers, boilers, offshore platforms, acid processing systems, and power generation facilities.
Applications of Incoloy 800/800HT/825 Forged Pipe Fittings
Incoloy Forged Pipe Fittings are designed for dependable performance in systems involving high temperatures, acidic media, and corrosive process conditions using threaded or socket weld connections.
- Chemical & Fertilizer Industries: Acid handling systems, chemical processing pipelines, and reactor auxiliaries.
- Petrochemical & Offshore: Corrosion-resistant forged fittings for offshore and marine piping systems.
- Power & Heat Transfer Systems: Boilers, heat exchangers, and high-temperature auxiliary piping.
When to Choose Incoloy 800/800HT/825?
These Incoloy grades are ideal for forged fittings used in applications requiring long-term thermal stability, corrosion resistance, and mechanical reliability under continuous high-temperature service.
Choose Incoloy 800/800HT/825 when:
- Equipment operates continuously at elevated temperatures
- Resistance to oxidation, carburization, and acidic corrosion is essential
- Long service life is required in petrochemical or fertilizer plants
- Threaded or socket weld fittings must retain strength over prolonged exposure
- Used in heat exchangers, boilers, offshore, or chemical processing systems
Industries That Use Incoloy 800/800HT/825 Forged Pipe Fittings
Incoloy forged fittings are widely used in industries where corrosion resistance, high-temperature stability, and long-term operational reliability are required.
Designed for corrosive chemical processing environments.
Uses
Acid handling systems, chemical reactors, and forged process piping.
Why Incoloy?
Excellent resistance to acidic corrosion and stress corrosion cracking ensures extended service life.
Preferred for corrosion-resistant offshore and marine applications.
Uses
Process piping, offshore platforms, and marine heat exchange systems.
Why Incoloy?
Provides reliable resistance to chloride environments and high-temperature oxidation.
Used in systems requiring thermal stability and corrosion resistance.
Uses
Boilers, heat exchangers, and high-temperature auxiliary piping.
Why Incoloy?
Maintains mechanical strength and corrosion resistance under prolonged high-temperature operation.
Usage Guide for Incoloy 800/800HT/825 Forged Pipe Fittings
Directional change in compact, corrosion-resistant piping systems.
Choose Socket Weld Elbow when
- 45° or 90° directional change is required
- High-pressure and leak-tight connection is needed
- Used in chemical, heat transfer, or offshore systems
- Resistance to oxidation and corrosion is essential
Branch flow distribution in corrosive process piping.
Choose Tee when
- Equal or reducing outlet is required
- Stable performance under continuous operation is critical
- Used in fertilizer or petrochemical plants
- Threaded or socket weld joint reliability is required
Multi-directional flow distribution in process piping.
Choose Cross when
- Multiple branch outlets are required
- Corrosion resistance is critical
- Used in chemical or fertilizer plants
- Stable performance at elevated temperatures is required
Joins two pipes in straight alignment.
Choose Full Coupling when
- Pipe length extension is required
- Threaded or socket weld joint is needed
- Used in boilers or heat exchangers
- Long-term corrosion resistance is required
Branch outlet connection for process and utility piping.
Choose Half Coupling when
- Instrumentation connection is required
- Socket weld or threaded joint is preferred
- Used in heat exchangers or chemical plants
- Corrosion resistance is critical
Seals pipe ends in corrosive and elevated-temperature environments.
Choose Pipe Cap when
- Pipe termination or isolation is required
- Used for pressure testing
- Resistance to corrosion and heat is essential
- Threaded sealing reliability is required
Provides easy disassembly in corrosive service piping systems.
Choose Union when
- Maintenance access is required
- Leak-proof threaded joint is essential
- Used in offshore or chemical processing plants
- Corrosion resistance is critical
Thread size reduction for compact piping layouts.
Choose Bushing when
- Pipe size transition is required
- Space limitations exist
- Resistance to acidic and aqueous corrosion is required
- Used in process instrumentation piping
Short threaded pipe connection for corrosive and high-temperature systems.
Choose Nipple when
- Compact pipe extension is required
- Resistance to oxidation and acidic corrosion is essential
- Used in fertilizer, chemical, or heat transfer systems
- Threaded joints must maintain long-term stability
Our Forged Pipe Fittings are manufactured using advanced forging processes and undergo extensive quality checks to ensure flawless dimensional accuracy, durability, and long service life. Each fitting is thoroughly inspected using key NDT techniques such as radiographic testing (RT), ultrasonic testing (UT), hydrostatic testing, and visual/dimensional examination. We also perform detailed chemical composition analysis and mechanical property testing to ensure material compliance with strict industry standards.
Throughout the forging and finishing stages, every forged fitting is monitored closely to eliminate defects such as misalignment, surface irregularities, and wall-thickness variations. This ensures perfect joint integrity and high-performance reliability in pipelines carrying high temperatures, pressures, and corrosive media. All our forged fittings fully comply with ASME, ASTM, MSS-SP, and related global specifications, making them a preferred choice for critical piping systems worldwide.
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