| Flanges Types | Slip On, Weld Neck, Long Weld Neck, Threaded, Blind, Companion, Lap Joint |
|---|---|
| Class | 150 Lbs, 300 Lbs, 600 Lbs, 900 Lbs, 1500 Lbs, 2500 Lbs Asa 150, Asa 300, Pn 6, 10, 16, 25, 40, 64, 100, 160 |
| Size | 1/2″ (15 Nb), 48″ (1200nb) Dn10~dn5000 |
| Type | Raised Face (rf), Flat Face (ff), Ring Type Joint (rtj), Lap Joint Face (ljf), Large Male Female (lmf), Small Male Female (smf), Large Tongue & Groove, Small Tongue, Groove |
Hastelloy flanges manufactured in India for chemical processing oil gas marine and high corrosion resistance piping systems
Sagar Steel Corporation is a trusted Hastelloy Flanges Manufacturer in India, which provides high performance flanges intended to be used in extreme conditions of corrosion, high temperature and pressure. Hastelloy flanges are made using nickel based alloys which are famous in terms of their excellent pitting, crevice, oxidation and stress corrosion cracking resistance. The applications of these flanges are common in chemical processing, oil and gas, petrochemical, power generation, pharmaceutical and marine.
We provide domestic and international customers who want to find uniform quality and reliable supply in domestic and international purchases through our global B2B portal, where we have sold precision-engineered Hastelloy flanges. To guarantee safe and leak-free pipe connections in the most important piping systems, our product line offers different types of flanges, flange size, pressure classes, and facing. The Hastelloy flanges are subjected to stringent quality inspection, chemical verification and mechanical testing to conform to international standard like ASTM, ASME, ANSI, DIN and EN.
Hastelloy Flanges – Material & Grade Table
| Material | Hastelloy Grade | UNS No. | Standard | Key Properties |
|---|---|---|---|---|
| Nickel Alloy | Hastelloy C-276 | N10276 | ASTM B564 | Excellent resistance to pitting & crevice corrosion |
| Nickel Alloy | Hastelloy C-22 | N06022 | ASTM B564 | Superior corrosion resistance in oxidizing media |
| Nickel Alloy | Hastelloy C-2000 | N06200 | ASTM B564 | Outstanding resistance to sulfuric acid |
| Nickel Alloy | Hastelloy X | N06002 | ASTM B564 | High-temperature strength and oxidation resistance |
| Nickel Alloy | Hastelloy B-2 | N10665 | ASTM B564 | Excellent resistance to hydrochloric acid |
Hastelloy Flanges – Types, Sizes & Availability Table
| Flange Type | Size Range | Pressure Class | Facing | Minimum Quantity |
|---|---|---|---|---|
| Weld Neck Flange | ½″ – 48″ | Class 150 – 2500 | RF / RTJ | 1 No |
| Slip On Flange | ½″ – 36″ | Class 150 – 600 | RF | 1 No |
| Blind Flange | ½″ – 48″ | Class 150 – 2500 | RF / RTJ | 1 No |
| Socket Weld Flange | ½″ – 24″ | Class 300 – 1500 | RF | 1 No |
| Lap Joint Flange | ½″ – 36″ | Class 150 – 600 | RF | 1 No |
Key Features of Hastelloy Flanges
Hastelloy flanges are selected for demanding industrial environments due to their superior metallurgical and mechanical properties.
- Very good resistance to corrosion and other aggressive chemical media.
- Good working under high temperature and pressure conditions.
- Very high pitting corrosion resistance and crevice corrosion resistance.
- Solid strength and dimensional stability.
- Prolonged service life and less maintenance needs.
These attributes render Hastelloy flanges an effective solution in terms of high service and corrosion-sensitive piping systems.
Besides Hastelloy flanges, we also offer Carbon Steel Flanges, Aluminium Flanges, and Monel Flanges, making it possible to purchase the entire spectrum of flange materials as structural, corrosion-resistant, and high-performance flanges through our B2B portal.
Type of Sub-products

Hastelloy Blind Flanges Hastelloy Blind Flanges
Blind flanges are solid discs without a bore, used to seal off the end of piping systems or pressure vessels. Commonly made from Hastelloy, they are ideal for maintenance access or system pressure testing in chemical and marine environments.

Hastelloy Weld Neck Flange Hastelloy Weld Neck Flange
This flange features a long tapered neck that provides excellent stress distribution, making it ideal for high pressure and high temperature environments. Manufactured using Hastelloy C22 or C276, it ensures resistance to pitting, crevice corrosion, and oxidizing agents. Commonly used in chemical processing, pollution control, and marine applications.
