Premium Hastelloy C22/C276 Forged Pipe Fittings by Ratnadeep Steel & Engg. Co.
Ratnadeep Steel & Engg. Co. is a leading manufacturer, exporter, and supplier of Hastelloy C22 and Hastelloy C276 Forged Pipe Fittings, engineered for severe corrosive and high-pressure service conditions. Manufactured from premium nickel-chromium-molybdenum alloys, these forged fittings deliver outstanding resistance to pitting, crevice corrosion, oxidation, and stress corrosion cracking, even in highly aggressive chemical environments.
Hastelloy C276 Forged Pipe Fittings are widely used for their exceptional resistance to wet chlorine, hypochlorites, ferric and cupric chlorides, sulfuric acid, and other harsh chemicals. Hastelloy C22 Forged Fittings offer superior protection against localized corrosion, making them ideal for mixed oxidizing and reducing media. Both grades provide excellent mechanical strength, dimensional stability, and weld integrity under extreme temperatures and pressures.
Our precision-manufactured Hastelloy C22 / C276 forged fittings—including elbows, tees, couplings, unions, reducers, and threaded or socket weld components—ensure leak-free connections, compact design, and long-term operational reliability. These fittings are extensively used in chemical processing plants, pollution control systems, pharmaceutical equipment, pulp and paper industries, heat exchangers, offshore platforms, and oil & gas facilities. Choose Ratnadeep Steel & Engg. Co. for internationally compliant Hastelloy forged pipe fittings that guarantee superior corrosion resistance, safety, and performance.
- Hastelloy C22 / C276 Socket Weld Elbow
- UNS N06022 / N10276 Threaded Elbow
- DIN 2.4819 Hastelloy Forged Elbow
- ASME SB564 45° Threaded Elbow
- Hastelloy C22 90° Forged Elbow
- ASTM B564 Hastelloy C22 Forged Equal Tee
- ASME SB564 Hastelloy C276 Socket Weld Tee
- DIN 2.4602 Hastelloy Reducing Tee
- UNS N10276 Unequal Tee
- Alloy C22 Threaded Equal Tee
- Hastelloy C22 Threaded Equal Cross
- UNS N06022 / DIN 2.4602 Forged Cross
- ASME SB564 Alloy C276 Socket Weld Cross
- Hastelloy C22 Reducing Cross
- Alloy C276 Forged Unequal Cross
- DIN 2.4602 Threaded Full Coupling
- UNS N06022 Forged Full Coupling
- ASME SB564 C276 Socket Weld Full Coupling
- ASTM B564 Alloy C22 Full Coupling
- ASTM B564 C22/C276 Socket Weld Half Coupling
- UNS N06022 / N10276 Forged Half Coupling
- ANSI B16.11 Threaded Half Coupling
- UNS N06022 Forged Pipe End Cap
- Hastelloy C22 Threaded Pipe Cap
- ASTM B564 C22 Socket Weld Pipe Cap
- ASME SB564 C276 Forged End Cap
- UNS N06022 Socket Weld Union
- ANSI B16.5 Hastelloy C22 Union
- ASTM B564 C22/C276 Threaded Union
- ASME SB564 Forged Union
- B16.36 Hastelloy C22 Hex Head Bushing
- UNS N06022 Threaded Bushing
- ASTM B564 C22/C276 Forged Bushing
- ASME SB564 Alloy Forged Bushing
- UNS N06022 Threaded Nipple
- ASTM B564 C276 Swage Nipple
- SB564 Alloy C276 Hex Nipple
- Hastelloy C22/C276 Screwed Pipe Nipple
CHEMICAL COMPOSITION OF HASTELLOY C22/C276 FORGED PIPE FITTINGS
| Grade | Ni | C | Mo | Mn | Si | Fe | P | S | Co | Cr | W | V |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Hastelloy C22 | Balance | 0.010 max | 12.5-14.5 | 0.50 max | 0.08 max | 2-6 | 0.02 max | 0.02 max | 2.5 max | 20-22.5 | 2.5-3.5 | 0.35 max |
| Hastelloy C276 | Balance | 0.01 max | 15-17 | 1.0 max | 0.08 max | 4-7 | 0.04 max | 0.03 max | 2.5 max | 14.5-16.5 | 3-4.5 | 0.35 max |
MECHANICAL PROPERTIES OF ASME SB366 HASTELLOY FORGED PIPE FITTINGS
| Grade | Density | Melting Point | Tensile Strength | Yield Strength (0.2% Offset) | Elongation |
|---|---|---|---|---|---|
| Hastelloy C22 | 8.69 g/cm³ | 1399 °C (2550 °F) | Psi – 100,000, MPa – 690 | Psi – 45,000, MPa – 310 | 45% |
| Hastelloy C276 | 8.89 g/cm³ | 1370 °C (2500 °F) | Psi – 115,000, MPa – 790 | Psi – 52,000, MPa – 355 | 40% |
SPECIFICATION OF HASTELLOY C22/C276 FORGED FITTINGS
| Specification | ASTM B564 / ASME SB564 |
|---|---|
| Dimension Standard | ASME B16.11, MSS-SP-79, MSS-SP-83, MSS-SP-95, MSS-SP-97, BS3799 |
| Size | 1/8th NB to 4th 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. |
C22/C276 HASTELLOY ASTM B366 FORGED FITTINGS EQUIVALENT GRADES
| STANDARD | UNS | WNR. | EN | JIS | GOST | Other |
|---|---|---|---|---|---|---|
| Hastelloy C22 | N06022 | 2.4602 | NiCr21Mo14W | NW 6022 | – | – |
| Hastelloy C276 | N10276 | 2.4819 | NiMo16Cr15W | NW 0276 | XH6SMBY | 3n760 |
PHYSICAL PROPERTIES OF HASTELLOY C22 & C276 FORGED FITTINGS
| Property | Hastelloy C22 | Hastelloy C276 |
|---|---|---|
| Density | 0.314 lb/in³ (8.69 g/cm³) | 0.321 lb/in³ (8.89 g/cm³) |
| Melting Point | 2550 °F (1399 °C) | 2415-2500 °F (1323-1371 °C) |
| Specific Heat | 0.1 Btu/lb/°F (32-212°F) | 0.102 Btu/lb/°F (Room temp) / 427 J/kg·K |
| Thermal Conductivity @ Room Temp | 70 Btu·in/ft²·hr·°F | 65-71 Btu·in/ft²·hr·°F (0-100°F) / 9.4-10.2 W/m·K |
| Mean Coefficient of Thermal Expansion | 6.9 µin/in·°F | 6.2-7.4 µin/in·°F (75-1000°F) / 11.2-13.4 ×10⁻⁶ m/m·K |
| Modulus of Elasticity (Tension) | 29.9 × 10⁶ psi | – |
| Electrical Resistivity @ Room Temp | – | 51 µΩ·in (75°F) / 1.30 µΩ·m (24°C) |
💡 Practical Difference in Use
Use Hastelloy C22 / C276 Forged Pipe Fittings when: maximum resistance to corrosion, pitting, crevice corrosion, and stress corrosion cracking is required under high pressure and extreme chemical exposure. These forged nickel-chromium-molybdenum alloys deliver superior strength, compact design, and leak-free performance in both oxidizing and reducing environments. → Example: chemical processing plants, pollution control systems, pharmaceutical units, offshore platforms, and acid handling applications.
Applications of Hastelloy C22 / C276 Forged Pipe Fittings
Hastelloy forged pipe fittings are precision-engineered for high-pressure and highly corrosive service conditions where reliability and long service life are critical.
- Chemical Processing: High-pressure reactors, heat exchangers, and chemical transfer lines.
- Pollution Control: Scrubber systems, flue gas desulfurization units, and waste treatment piping.
- Pharmaceutical & Specialty Chemicals: Compact, corrosion-resistant process connections.
When to Choose Hastelloy C22 / C276 Forged Fittings?
These forged grades are ideal where extreme corrosion resistance, high mechanical strength, and secure threaded or socket weld connections are required.
Choose Hastelloy C22 / C276 Forged Fittings when:
- Handling aggressive acids, chlorides, and mixed chemical media
- Maximum resistance to pitting and crevice corrosion is essential
- High pressure strength and compact piping design are required
- Leak-proof threaded or socket weld joints are critical
- Used in chemical, pharmaceutical, or offshore process systems
Industries That Use Hastelloy C22 / C276 Forged Pipe Fittings
Hastelloy forged fittings are widely used in industries that demand superior corrosion resistance, pressure integrity, and operational safety.
Designed for highly corrosive and high-pressure chemical environments.
Uses
Chemical reactors, acid handling systems, and heat exchanger connections.
Why Hastelloy Forged?
Exceptional resistance to acids, chlorides, and localized corrosion.
Performs reliably in harsh marine and environmental conditions.
Uses
Scrubber systems, offshore piping, and waste treatment units.
Why Hastelloy Forged?
Superior strength and corrosion resistance under extreme conditions.
Ensures purity and leak-free processing.
Uses
Pharmaceutical reactors and specialty chemical process lines.
Why Hastelloy Forged?
Maintains integrity, cleanliness, and long-term reliability.
Usage Guide for Hastelloy C22 / C276 Forged Pipe Fittings
Directional flow change in compact, high-pressure piping systems.
Choose Socket Weld Elbow when
- 90° directional change is required
- High pressure and corrosion resistance are critical
- Compact piping layout is needed
- Used in chemical and pharmaceutical plants
Branch flow distribution in aggressive chemical environments.
Choose Reducing Tee when
- Branch size differs from main line
- High corrosion resistance is essential
- Used in chemical reactors and process piping
- High-pressure forged connection is required
Four-way flow distribution in highly corrosive and high-pressure systems.
Choose Cross when
- Multiple branch connections are required
- Exposure to aggressive chemicals is severe
- High-strength threaded or socket weld joints are needed
- Used in chemical reactors and process piping
Joins two pipes securely in corrosive and high-pressure environments.
Choose Full Coupling when
- Pipe-to-pipe connection is required
- High mechanical strength is critical
- Used in chemical processing systems
- Leak-proof forged joint is needed
Creates branch connections on pipes in corrosive service.
Choose Half Coupling when
- Small branch outlet is required
- Socket weld or threaded connection is preferred
- Used in chemical and pharmaceutical systems
- High pressure strength is required
Securely seals pipe ends in corrosive and high-temperature services.
Choose Cap when
- Pipe end closure is required
- Leak-tight sealing in aggressive media is critical
- Used during pressure testing or future expansion
- Installed in chemical process piping
Provides easy disassembly in corrosion-resistant piping systems.
Choose Union when
- Frequent maintenance or inspection is required
- Leak-tight detachable joint is essential
- Used in chemical and pharmaceutical plants
- High corrosion resistance is critical
Reduces connection size in corrosive and high-pressure piping systems.
Choose Bushing when
- Pipe size reduction is required
- Compact and economical forged fitting is preferred
- Used in aggressive chemical environments
- Threaded reduction is needed
Short threaded connection for compact and high-pressure corrosive piping systems.
Choose Nipple when
- Close-end or extension connection is required
- High corrosion resistance is essential
- Used in chemical and acid handling systems
- Space-saving forged connection is preferred
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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