How does the cost of different finishes for Hastelloy pipe fittings vary?
Many buyers prefer protective coats and finishes on these pipe fittings to boost corrosion resistance and durability. Manufacturers offer a phosphate finish, electroplating, or self-coating forHastelloy pipe fittings.
Phosphating, which involves creating a phosphate layer on the surface (zinc phosphate), can be the most expensive. It is also demanding to maintain. You can consider powder coating for improved chemical properties and longer service duration of Hastelloy C22 pipe fittings. Electroplating is generally cheaper. It uses electric current to coat the surface.
We are top most Alloy C22 elbow manufacturer in India
What are the 6 disadvantages of Alloy C22 elbow?
Strength and corrosion resistance make an Alloy C22 elbow prized by many industrial clients, including marine applications and chemical processing plants. However, these fittings possess some intrinsic demerits you must consider before ordering:
- It is dearer than many other options.
- It is time-consuming to procure the specific fittings, like a Nickel C22 buttweld end cap, as many suppliers and distributors do not stock it. Custom production will take time unless the mill has a vast portfolio.
- These elbows have a high hardness (40 HRc), which makes them brittle.
- It possesses a higher density (8.89 g/cm3) than a few other alternatives, making these fittings heavier.
- Cutting, machining, etc., is somewhat challenging and necessitates particular tools.
- Rapid work hardening renders this material dicey to work with or fabricate.
Hastelloy fittings and Nickel alloy C22 equal/ reducing tee as per MSS SP-43, lowest price in Mumbai
Hastelloy pipe fittings
Alloy C22 elbow
Hastelloy fittings
What are the benefits of using Hastelloy fittings?
They are among the most demanded fittings in corrosive environments. Hastelloy fittings use a specialised chemical profile: nickel, chromium, molybdenum (close to 14%), and up to 3% of tungsten. It shows unique advantages, the topmost being exemplary resistance to corrosion in many forms (crevice, intergranular, pitting, and cracking).
These fittings are robust and long-lasting, retaining strength at elevated temperatures. They are sensible choices to avoid leaking or contamination in scenarios warranting foolproof safety.
DIN 2.4602 return bends show top-notch weldability via GMA or MIG techniques (Gas Metal Arc or Metal Inert Gas). You can also use tungsten or a shielded metal arc.
Supplier of Hastelloy elbow in 45/90/180 degree in long and short radius as per International specification (ASME B16.9)
Table of Content
Specifications of Hastelloy pipe fittings
| Seamless Size | Standard | Welded Size |
|---|---|---|
| 1/2″ to 10″ | ASME/ANSI B16.9, ASME B16.28 | 1/2″ – 48″ |
| Schedule | Thickness | Type |
| Sch 5 to XXS | 10 swg. to 20 swg. | Elbow, tee, reducer, cap stub end |
| Specification | Process | Grades |
| ASTM B366 | ASME SB366
ASTM B564, ASME SB564 |
Seamless, welded, fabricated | (UNS No. N06022) Hastelloy C22 , (UNS No. N10665) Hastelloy B2 , (UNS No. N06455) Hastelloy C-4 |
UNS N06022 reducer and Hastelloy C22 pipe fittings available in all sizes & pressure class 3000 To 9000
Hastelloy fittings types
Hastelloy elbow
- Thickness: 1.5MM to 20MM
- Yield strength : 359MPa minimum
Alloy C22 tee
- Temperature: 1375°C
- Schedule: SCH 5 to SCH XXS
UNS N06022 reducer
- Standard: ASME B16.9, ASTM B366, JIS B2312, MSS-SP-43 Type B, ASME B16.28
Hastelloy C22 pipe fittings
- Tensile strength : 761MPa minimum
- Pressure Rating: 3000psi -10000psi
DIN 2.4602 return bends
- Density: 8.69 g/cm3
- Sizes: ½”NB to 48″NB
Nickel C22 buttweld end cap
- Testing methods: proof test, hydrotest, NDT test, destructive
Check DIN 2.4602 return bends and Nickel C22 buttweld end cap dimensions & weight according to ASME B16.28
Alloy C22 elbow chemical composition
| Grades | Si | Ni | Mo | C | Mn | Fe | P | Co | S | Cr |
|---|---|---|---|---|---|---|---|---|---|---|
| Alloy C22 | 0.08 Maximum | Bal | 12.5 – 14.5 | 0.010 Maximum | 0.50 Maximum | 2 – 6 | 0.02 Maximum | 2.5 Maximum | 0.02 Maximum | 20 – 22. |
| Alloy C276 | 0.08 Maximum | Bal | 15.00 – 17.00 | 0.010 Maximum | 1.00 Maximum | 4.00 – 7.00 | 0.04 Maximum | 2.5 Maximum | 0.03 Maximum | 14.50 – 16.50 |
UNS N06022 reducer mechanical properties
| Melting Point | Density | Tensile Strength | Elongation | Yield Strength (0.2%Offset) | |
|---|---|---|---|---|---|
| B2 | (2550 °F) 1370 °C | 9.2 G/Cm3 | Psi – 1,15,000 , MPa –760 | 40% | Psi – 52,000 , MPa – 350 |
| C22 | (2550 °F) 1399 °C | 8.69 G/Cm3 | Psi – 1,00,000 , MPa – 690 | 45 % | Psi – 45000 , MPa – 310 |
| C276 | (2500 °F) 1370 °C | 8.89 G/Cm33 | Psi – 1,15,000 , MPa – 790 | 40% | Psi – 52,000 , MPa – 355 |
| C4 | 1350-1400 °C | 8.64 G/Cm3 | 783 | 55% | 365 |
| X | 1355°C | 8.22 G/Cm³ | 655 MPa | 35% | 240 MPa |
| B3 | (2550 °F) 1370 °C | 9.2 G/Cm3 | Psi – 1,15,000 , MPa –760 | 40% | Psi – 52,000 , MPa – 350 |
| Hybrid BC1 | 1343 – 1443°C | 8.83 G/Cm³ | 725 | 40% | 310 |
Equivalent grades of Hastelloy C22 pipe fittings
| STANDARD | WERKSTOFF NR. | UNS | AFNOR | EN | JIS | GOST |
|---|---|---|---|---|---|---|
| Alloy C22 | 2.4602 | N06022 | – | NiCr21Mo14W | NW 6022 | – |
| Alloy C276 | 2.4819 | N10276 | – | NiMo16Cr15W | NW 0276 | ХН65МВУ |
How does corrosion affect the performance and lifespan of Hastelloy elbow?
The corrosion resistance of these fittings is hard to compete with. A Hastelloy elbow can face exposure to an impressive range of abrasives: from chlorides and fluorides to nitric acid. Its performance in pollution control is excellent, mainly in flue gas desulphurisation. Pulp and paper processing also uses these components for long-term performance amid corrosives.
Buyers should conduct cleaning and maintenance to prolong the operative life of these fittings. When maintained properly, they can last for decades without any loss in performance.
What is the significance of Alloy C22 tee schedules in terms of wall thickness?
The schedule pertains to the wall thickness, with an increase denoting a greater thickness. An Alloy C22 tee is available in different schedules to cater to versatile applications. You can acquire the desired fittings in SCH10, SCH20, and so on, up to SCH160.
Note that the outside diameter or OD stays the same. But the internal diameter (I.D.) fluctuates with changing schedules. Typically, a greater thickness indicates more strength.
Is a hydro test on UNS N06022 reducer required before installation?
These fittings are subjected to many tests to adjudge their quality and performance in challenging environments. A UNS N06022 reducer needs to pass a hydrostatic test or electrical testing. The requirement for pneumatic, mechanical, and non-destructive tests helps these fittings demonstrate resilience against rupture (caused by creep).
Manufacturers may also conduct an ultrasonic examination, an Eddy Current test, and an assessment of the chemical composition. Properties like tensile strength, hardness, and dimensional accuracy also get examined.