High Quality Hastelloy Forged Pipe Fittings

C22 • C276 • Strength • Sealing • Durability

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Hastelloy C22 & Hastelloy C276 Forged Pipe Fittings

Premium Hastelloy C22 & C276 Forged Pipe Fittings by Ratnadeep Steel & Engg. Co.

Ratnadeep Steel & Engg. Co. is a trusted manufacturer, exporter, and supplier of high-performance Hastelloy C22 and Hastelloy C276 Forged Pipe Fittings, specifically engineered for the most demanding corrosive and high-temperature environments. To begin with, these nickel–chromium–molybdenum alloys provide exceptional resistance to pitting, crevice corrosion, stress-corrosion cracking, oxidizing chemicals, and severely aggressive media; as a result, they are widely regarded as ideal for critical pressure piping and flow-control systems across numerous heavy-industry sectors.

Furthermore, our Hastelloy forged fittings are manufactured using advanced hot-forging processes, precision machining, and stringent metallurgical quality controls to ensure superior mechanical strength, dimensional accuracy, and long-term service reliability. For instance, Hastelloy C22 offers excellent resistance to both oxidizing and reducing environments, whereas Hastelloy C276 is widely recognized for its versatility and outstanding performance in harsh chemical processes involving strong acids, chlorides, and wet chlorine. Consequently, we supply a complete range of forged configurations including elbows, tees, couplings, unions, caps, plugs, reducers, and custom-forged components to meet diverse project specifications.

Moreover, our products are widely trusted in industries requiring maximum corrosion resistance and pressure integrity. In fact, our Hastelloy C22 and C276 Forged Pipe Fittings are extensively used in chemical processing plants, petrochemical units, pollution control systems, pharmaceuticals, paper & pulp industries, offshore and marine installations, flue gas desulfurization units, and high-pressure reactor systems. Equally important, backed by advanced manufacturing capabilities and expert technical oversight, Ratnadeep Steel & Engg. Co. ensures every forged fitting complies with stringent international standards — including ASTM B366, ASME SB366, and DIN 2.4602/2.4819 — and delivers consistent performance in the harshest industrial conditions. On top of that, we offer full material traceability, third-party inspection services, and flexible delivery schedules to support your critical project timelines.

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Hastelloy C22 Forged Pipe Fittings
Explore Hastelloy C22 Forged Pipe Fittings
Hastelloy C22 Forged Pipe Fittings
Hastelloy C276 Forged Pipe Fittings
Explore Hastelloy C276 Forged Pipe Fittings
Hastelloy C276 Forged Pipe Fittings

Hastelloy C22 Forged Pipe Fittings

  • Nickel–chromium–molybdenum alloy with outstanding corrosion resistance
  • Exceptional resistance to both oxidizing and reducing chemical environments
  • Highly resistant to pitting, crevice corrosion, and stress corrosion cracking
  • Designed for high-pressure and high-temperature forged applications
  • Performs excellently in strong oxidizers such as ferric chloride, hydrochloric acid, and nitric acid
  • Widely used in chemical processing, pharmaceuticals, and pollution control systems
  • Available in forged elbows, tees, couplings, unions, reducers, caps, and plugs
  • Maintains mechanical integrity and pressure containment in aggressive media
  • Preferred for long-term service in highly corrosive and critical process conditions

Hastelloy C276 Forged Pipe Fittings

  • Nickel–chromium–molybdenum alloy with excellent general corrosion resistance
  • Superior resistance to both oxidizing and reducing agents
  • Exceptional resistance to pitting, crevice corrosion, and chloride stress corrosion cracking
  • Highly versatile forged fittings for extreme chemical process environments
  • Ideal for sulfuric acid, phosphoric acid, wet chlorine, and other aggressive media
  • Extensively used in chemical processing, marine systems, and pollution control equipment
  • Supplied in forged elbows, tees, couplings, unions, reducers, caps, and custom-forged components
  • Maintains strength, toughness, and pressure integrity across a wide temperature range
  • Recommended for long-term reliability in severely corrosive and high-pressure conditions

Frequently Asked Questions About Hastelloy C22 & C276 Forged Pipe Fittings

What are Hastelloy C22 and C276 Forged Pipe Fittings?

Hastelloy C22 (UNS N06022) and Hastelloy C276 (UNS N10276) are nickel-chromium-molybdenum alloy forged pipe fittings manufactured to standards like ASTM B564 / ASME SB564 and ASME B16.11 [citation:7][citation:10]. Both grades offer exceptional corrosion resistance in aggressive environments, including oxidizing and reducing media [citation:2]. These fittings are widely used in chemical processing, flue gas desulfurization systems, pharmaceutical equipment, and oil & gas applications [citation:1][citation:11].

What is the difference between Hastelloy C22 and C276?

The primary difference lies in their chemical composition and resulting performance characteristics [citation:9][citation:11]. Hastelloy C22 has a higher chromium content (20.5-23%) and lower molybdenum (8-10%), offering superior resistance to oxidizing acids, pitting, and crevice corrosion [citation:6][citation:9]. Hastelloy C276 has higher molybdenum (15-17%) and lower chromium (14.5-16.5%), making it excel in reducing environments and against wet chlorine gas [citation:3][citation:9]. C276 is generally slightly more economical in the Indian market [citation:9].

What manufacturing standards and pressure classes are available?

Our Hastelloy Forged Pipe Fittings are manufactured in compliance with ASTM B564 / ASME SB564 for material specifications and ASME B16.11, MSS SP-79, MSS SP-83, MSS SP-95, and BS 3799 for dimensional standards [citation:7][citation:10]. They are available in pressure classes 2000 LBS, 3000 LBS, 6000 LBS, and 9000 LBS [citation:7][citation:10]. Sizes range from ⅛" NB to 4" NB for socket weld and threaded fittings [citation:7][citation:10].

What types of forged fittings are available in Hastelloy C22 and C276?

We offer a complete range including elbows, tees (equal and reducing), crosses, concentric and eccentric reducers, caps, unions, couplings, hexagon and reducing nipples, plugs, and bushings [citation:4]. Socket weld and threaded (screwed) fittings are available in both grades [citation:2][citation:7]. Forged outlet fittings such as weldolets, sockolets, threadolets, and elbolets are also offered [citation:4]. Customized dimensions are available upon request.

What are the typical mechanical properties of Hastelloy C22 and C276?

Both grades exhibit excellent mechanical properties. Ultimate Tensile Strength is ≥ 690 MPa for both alloys. Yield Strength (0.2% offset) is ≥ 283 MPa for C22 and ≥ 276 MPa for C276. Elongation is ≥ 40% for both, demonstrating excellent ductility [citation:6][citation:9]. Maximum hardness is ≤ 230 HB for both grades [citation:9].

What physical properties make Hastelloy C22 and C276 unique?

Both alloys are characterized by their outstanding corrosion resistance in both oxidizing and reducing environments [citation:1][citation:8]. Hastelloy C22 has a density of 8.49 g/cm³ and melting point of 1325-1370°C [citation:6][citation:9]. Hastelloy C276 has a density of 8.9 g/cm³ and melting point of 1260-1355°C [citation:6][citation:9]. Both alloys resist the formation of grain boundary precipitates that would degrade corrosion resistance, and C276 generally does not require solution heat treatment after welding [citation:3].

Which industries use Hastelloy C22 and C276 Forged Pipe Fittings?

These fittings are widely used across chemical processing, petrochemicals and refineries, oil and gas, pharmaceutical manufacturing, flue gas desulfurization (FGD) systems, pulp and paper production, waste treatment, and power generation [citation:5][citation:8][citation:9]. C22 is often favored for FGD and pharmaceutical applications due to its superior resistance to oxidizing conditions and chlorides, while C276 remains the industry standard for general chemical processing and pollution control [citation:9][citation:11].

What testing and inspection do you perform on Hastelloy Forged Fittings?

Our Hastelloy forged fittings undergo rigorous quality checks including radiography testing (RT), ultrasonic testing (UT), hydrostatic testing, visual and dimensional examination, chemical composition analysis, and mechanical property testing. PMI (Positive Material Identification) and NDT are also performed to ensure material compliance with strict industry standards [citation:4]. Test certificates as per EN 10204 Type 3.1 and Type 3.2 are provided.

Why choose Ratnadeep Steel for Hastelloy C22 and C276 Forged Pipe Fittings?

Ratnadeep Steel & Engg. Co. is a renowned manufacturer, exporter, and supplier based in Mumbai, India. We offer factory pricing, top quality, custom sizes, and timely delivery. Our fittings are precision-engineered using advanced forging techniques with rigorous quality inspection, making us a trusted global supplier of high-performance Hastelloy forged pipe fittings.

What are the equivalent international standards for Hastelloy C22 and C276?

Hastelloy C22 equivalent grades include UNS N06022 and Werkstoff Nr. 2.4602 [citation:8][citation:9]. Hastelloy C276 equivalent grades include UNS N10276 and Werkstoff Nr. 2.4819 [citation:8]. All fittings are manufactured to comply with ASTM B366 / ASME SB366 and ASME B16.9 standards for buttweld fittings [citation:4][citation:8].

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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