Amigo Impex
Amigo Impex
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What are Hastelloy Flanges?

Hastelloy is a trademarked name owned by Haynes International. Hastelloy Flanges are also known as Super Alloys or Heat Resistance Flanges. These special alloy flanges comes in various grades of Hastelloy. There are many types of Hastelloy Flanges such as Blind, Slip on, Weld Neck, Orifice, Socket Weld, Lap Joint, Threaded, and Reducing. Each flange configuration is used for the different function in piping system, valves, and pumps.
Hastelloy Slip on Flange can be used from Chemical processing to Aerospace industry in pipe connections. Other side, Hastelloy Weld Neck flanges comes in short and long neck which provide the strong connection in high pressure applications. Super Alloy SORF Flange and Threaded Flanges can be used for low pressure applications. These Hastelloy Pipe Flanges are quite popular in ferric chloride processing companies because of its long life in sewage and water treatment plants.
Hastelloy Pipe Flanges are manufactured in forged and plate methods accordance to ANSI/ ASME B16.5. Large Diameter Hastelloy Flanges are produced as per the ASME B16. 47 Series A and suitable for sewage treatment industry. Welding of Hastelloy Flanges can be done using proper techniques and filler metal. ERNiCrMo-3 filler metal are mainly used for TIG and MIG welding. While E-NiCrMo-3 is used for Stick welding and NiCrMo-3 for SAW welding process.
Amigo Impex is a Manufacturer of Hastelloy flanges in India. The company is manufacturing all types of Hastelloy Forged Flanges in ASME, DIN, ISO, JIS, and API standards. Amigo Impex is a approved vendor in YANSAB and Arabian Amines Company in Saudi Arabia. The company has a record of timely delivery of Hastelloy flanges within six days in Jubail, KSA. They are exporting the high temperature flanges in middle east and MENA countries since 2013.

Hastelloy Flanges Specification
Dimensions: ASME B16.5, B16.48, B16.36, B16.47
Size Range : 15 – 1500 NB, NPS: ½” to 48″
Pressure rating: Class 150-2500 (forged), 150-600# (threaded)
Manufacturing Standard: ASTM B564
Quote within 24Hrs with Technical Data Sheet
100% Tested Hastelloy Flanges supply with MTC EN 10204/3.1
Who they are?
Hastelloy Flanges Manufacturer in India
Supplier of Hastelloy Blind Flange in Mumbai
Manufacturer of Hastelloy Forged Flanges
Manufacturer of Hastelloy Slip on Flange in India
Supplier of Hastelloy Blind Flange in Mumbai
Hastelloy Blind Flanges are manufactured as per DIN 2573, API, ASME B16.5, and B16.47 standards for oil and gas industries. These flanges come in sizes ranging from 1/2 inch to 24 inches or larger, depending on the manufacturing capability of the Hastelloy flange manufacturer.
Hastelloy Blind Flange Price
| Size | SCH | Class | Price in INR (India) Per Piece |
|---|---|---|---|
| 1" | Sch 40 | 150 | US $8.57 |
| 1-1/2" | Sch 40 | 150 | US $10.12 |
| 2" | Sch 40 | 150 | US $12.32 |
| 3" | Sch 40 | 150 | US $14.29 |
| 3/4" | Sch 40 | 150 | US $3.57 |
| 3/4" | Sch 40 | 150 | US $5.30 |
| 4" | Sch 40 | 150 | US $16.31 |
| 6" | Sch 40 | 150 | US $20.84 |
| 8" | Sch 40 | 150 | US $22.03 |
5 Reasons which make Amigo Impex one of the best Supplier and Manufacturer of Hastelloy Flanges in India
To become a leader in any sector a company need to focus on each area from taking the order till after sales. Here are 5 main reasons which makes Amigo Impex the best among Hastelloy Flanges manufacturers in India.

Manufacturer of Corrosion and Heat Resistance Flanges in India
Corrosion and Heat Resistance Flanges are used in extreme temperature and harsh environments. These Hastelloy Flanges are known for excellent resistance and can sustain up to 1300°C. Ask for a technical data sheet from the manufacturers to check the capability of the material in your application.
Hastelloy C276 Forged Flange Suitable Environment
| Environment | Test Temperature In °F | Test Temperature In °C | Concentration (% by weight) |
|---|---|---|---|
| Formic Acid | Boiling | Boiling | 20 |
| Hydrochloric Acid | 66 | 150 | 10 |
| Hydrochloric Acid | 75 | 167 | 10 |
| Sulfuric Acid | 75 | 167 |
Manufacturer of Hastelloy Slip on Flange according to ASTM B564
ASTM B564 is an American standard which is followed by the Hastelloy Flanges manufacturers while producing Slip On, Blind, WNRF, SORF, or any flange type. ASTM B564 or ASME SB 564 Hastelloy Flanges are manufactured using forging technique.
Hastelloy Flange Weight
Hastelloy Flange weight depends upon the manufacturers, sizes, quality, and hole pattern. "Volume x Density" this formula is used to calculate the weight of Hastelloy Flanges in kg. Density value 8.89 g/cm3 can be used to calculate the weight of Hastelloy material. Check the following table to see the weight in kg.
| Size (inches) | Number of Bolt Holes | Bolt Hole Diameter (inches) | Hastelloy Blind Flange (kg) | Hastelloy Slip-On Flange (kg) | Hastelloy Weld Neck Flange (kg) | Hastelloy Socket Weld Flange (kg) |
|---|---|---|---|---|---|---|
| ½ | 4 | 0.62 | 0.90 | 1.10 | 1.40 | 1.10 |
| ¾ | 4 | 0.62 | 1.20 | 1.40 | 1.80 | 1.40 |
| 1 | 4 | 0.62 | 1.50 | 1.80 | 2.20 | 1.80 |
| 1¼ | 4 | 0.62 | 2.30 | 2.80 | 3.10 | 2.80 |
| 1½ | 4 | 0.62 | 2.90 | 3.50 | 4.20 | 3.50 |
| 2 | 4 | 0.75 | 3.90 | 4.80 | 5.70 | 4.80 |
| 2½ | 4 | 0.75 | 5.50 | 6.60 | 8.20 | 6.60 |
| 3 | 4 | 0.75 | 7.20 | 7.90 | 10.50 | 7.90 |
| 3½ | 8 | 0.75 | 9.90 | 10.90 | 12.80 | 10.90 |
| 4 | 8 | 0.75 | 12.50 | 13.30 | 16.40 | 13.30 |
| 5 | 8 | 0.88 | 16.80 | 17.60 | 22.50 | 17.60 |
| 6 | 8 | 0.88 | 24.30 | 24.30 | 31.50 | 24.30 |
| 8 | 8 | 0.88 | 38.70 | 38.70 | 54.80 | 38.70 |
| 10 | 12 | 1.00 | 55.60 | 55.60 | 78.70 | 55.60 |
| 12 | 12 | 1.00 | 71.20 | 71.20 | 102.80 | 71.20 |
| 14 | 12 | 1.12 | 86.50 | 86.50 | 120.20 | 86.50 |
| 16 | 16 | 1.12 | 114.40 | 114.40 | 158.90 | 114.40 |
| 18 | 16 | 1.25 | 137.90 | 137.90 | 191.50 | 137.90 |
| 20 | 20 | 1.25 | 167.50 | 167.50 | 233.50 | 167.50 |
| 22 | 20 | 1.38 | 196.90 | 196.90 | 274.00 | 196.90 |
| 24 | 20 | 1.38 | 226.80 | 226.80 | 315.40 | 226.80 |
Why Hastelloy Flanges are used in Water and Sewage treatment pipelines?
Hastelloy Flange is a corrosion resistance material. These flanges are mostly used for piping system in wastewater and aggressive environments. Here are the 5 advantages of using for Water and Sewage treatment pipelines.
- Corrosion Resistance
- Chemical Resistance
- High-Temperature Performance
- Durability and Maintenance
- Structural Integrity
Which Tests are Mandatory before Installation of Hastelloy Flanges in Chemical Processing Companies?

Hastelloy Flanges Price List in Mumbai
| Size Range | Price in USD per Unit |
|---|---|
| Class 300 x SCH 40 x 1” | US $11.71 |
| Class 300 x SCH 40 x 1.1/2” | US $23.69 |
| Class 300 x SCH 40 x 1.1/4” | US $14.16 |
| Class 300 x SCH 40 x 2” | US $28.05 |
| Class 300 x SCH 40 x 3” | US $55.55 |
| Class 300 x SCH 40 x 3.1/2” | US $39.76 |
| Class 300 x SCH 40 x 3.1/2” | US $86.05 |
| Class 300 x SCH 40 x 4” | US $132.61 |
Supplying Hastelloy Pipe Flanges to Sewage and Water Treatment Plants in Saudi Arabia Since 2013
There are many Sewage and Water Treatment Plants in Al-Hassa, Jeddah, Riyadh, Dammam, Al-Jubail, Yanbu, Khobar, Al-Jouf, Tabuk, and other areas in KSA. Hastelloy Flanges are suitable for such applications which may involve aggressive chemicals, heated water, hydrogen sulfide, and other acids.
Hastelloy C276 Flange Pressure Ratings
| Temperature In °C | 600 LBS | 300 LBS | 150 LBS | Temperature In °F | 600 LBS | 300 LBS | 150 LBS |
|---|---|---|---|---|---|---|---|
| -29~38 | 103.4 | 51.7 | 20.0 | -20~100 | 1500 | 750 | 290 |
| 50 | 103.4 | 51.7 | 19.5 | 200 | 1500 | 750 | 260 |
| 100 | 103.0 | 51.5 | 17.7 | 300 | 1455 | 730 | 230 |
| 150 | 100.3 | 50.3 | 15.8 | 400 | 1395 | 700 | 200 |
| 200 | 96.7 | 48.3 | 13.8 | 500 | 1330 | 665 | 170 |
| 250 | 92.7 | 46.3 | 12.1 | 600 | 1210 | 605 | 145 |
| 300 | 85.7 | 42.9 | 10.2 | 650 | 1175 | 590 | 125 |
| 350 | 80.4 | 40.3 | 8.4 | 700 | 1135 | 570 | 110 |
| 400 | 73.3 | 36.5 | 6.5 | 800 | 1015 | 510 | 80 |
List of Industries in MENA Countries Require Hastelloy Material Regularly
- Oil and Gas Industry
- Chemical Processing
- Power Generation
- Desalination Plants
- Marine and Offshore Industries
- Aerospace
- Metallurgical Industry
- Pulp and Paper Industry
- Mining
Types of Hastelloy Flanges
Hastelloy Flanges are manufactured via forging and plate methods as per ASME B16.5, JIS B2220, and ISO 7005-1. Check the most common types, their manufacturing method, standard size range and pressure rating.
| Hastelloy Flange Type | Manufacturing Method | Size Range | DIN/ ASME | Pressure Rating |
|---|---|---|---|---|
| Weld Neck Flange | Forging | 1/2" to 60" (DN 15 to DN 1500) | DIN 2573, B16.5 | Class 150 to 2500 |
| Slip-On Flange | Forging | 1/2" to 48" (DN 15 to DN 1200) | DIN 2576, B16.5 | Class 150 to 300 |
| Blind Flange | Forging | 1/2" to 60" (DN 15 to DN 1500) | DIN 2572, B16.5 | Class 150 to 2500 |
| Socket Weld Flange | Forging | 1/2" to 4" (DN 15 to DN 100) | DIN 3239, B16.5 | Class 150 to 300 |
| Threaded Flange | Forging | 1/2" to 6" (DN 15 to DN 150) | DIN 2527, B16.5 | Class 150 to 300 |
| Lap Joint Flange | Forging | 1/2" to 48" (DN 15 to DN 1200) | DIN 2642, B16.5 | Class 150 to 300 |
| Reducing Flange | Forging or Plate | 1" to 60" (DN 25 to DN 1500) | ASME B16.5 | Class 150 to 2500 |
| Dished Flange | Plate | Custom sizes available | ASME B16.5 | Depends on design |
| Flat Flange | Plate | Custom sizes available | ASME B16.5 | Depends on design |
| Ring Joint Flange | Forging | 1" to 60" (DN 25 to DN 1500) | ASME B16.20 | Class 150 to 2500 |
| Spectacle Blind Flange | Forging | Custom sizes | ASME B16.48 | Class 150 to 2500 |
Hastelloy Socket Weld Flanges
Hastelloy Plate Flanges
Hastelloy Lap Joint Flanges
Hastelloy Long Weld Neck Flanges
Hastelloy Threaded Flanges
Hastelloy Orifice Flanges
Hastelloy Blind Flanges
Hastelloy Reducing Flanges
What is the life of Hastelloy flange with ferric chloride?
Hastelloy Pipe Flanges can be used in Corrosive Environments such as Ferric Chloride (FeCl3). The Expected Lifespan is about 5-20 years which depends upon Regular inspection and proper maintenance. However Thicker Hastelloy Flanges can sustain in such environment for a longer period.
Why Hastelloy Flanges are also known as Super Alloys Flanges?
Here are the major 5 reasons to call them as Super Alloys
- Exceptional Corrosion Resistance
- High-Temperature Stability
- Mechanical Strength
- Resistance to Thermal Cycling
- Long-Term Durability
Approvals Required to Supply Hastelloy Flanges in Oil and Gas Industries

Certificates
ISO 9001 : 2015 Certificate
IEC Certificate
Udyam Registration Certificate
GST Certificate
Amigo Impex Head Office in Mumbai

Flange Stock
Raw material in Mumbai Factory to produce Hastelloy Flanges
Company Profile
| Nature of Business | Manufacturer and Exporter |
|---|---|
| Import Export Code (IEC) | 0314015973 |
| Legal Status of firm | Proprietor |
| GST No. | 27ASWPJ2834K1Z4 |
Contact Info
| Contact Person | Mr. Mayur Jain |
|---|---|
| Phone | +91 98213 27239 |
| sales@amigoimpex.net | |
| Mumbai Head Office | Amigo Impex 102, 1st Floor, B- Wing, Neo Clarissa Tower, Nanubhai Desai Road, Sikka Nagar, Mumbai 400004, India |

