ASTM B564 Hastelloy B2 Flanges are nickel-molybdenum alloy flanges made from UNS N10665 / DIN 2.4617 material, offering excellent resistance to hydrochloric acid and reducing environments. These flanges are available in weld neck, slip-on, threaded, and blind types and are widely used in chemical, petrochemical, and marine industries.
ASTM B564 Hastelloy B2 Flanges – Complete Technical Overview
When industries deal with highly corrosive chemicals like hydrochloric acid, standard materials fail quickly. This is where Hastelloy B2 Flanges become essential.
Designed for extreme environments, these flanges offer unmatched resistance to reducing chemicals while maintaining structural strength under pressure and temperature. We supply a wide range of ASTM B564 Hastelloy B2 Flanges, engineered to meet global standards and real-world industrial demands.
As a trusted Hastelloy B2 Flanges Manufacturer in India, we understand how critical material selection is for safety, performance, and long-term cost efficiency.
What is ASTM B564 Hastelloy B2 Material?
ASTM B564 defines the standard for forged nickel alloy components, including flanges made from UNS N10665 (Hastelloy B2).
This alloy is primarily composed of:
- Nickel (base metal)
- Molybdenum (high corrosion resistance)
Hastelloy B2 performs exceptionally well in reducing environments, especially hydrochloric acid at all concentrations.
Table of Contents
- ➤ What is ASTM B564 Hastelloy B2 Material?
- ➤ Key Features & Advantages of ASTM B564 Hastelloy B2 Flanges
- ➤ Types of ASTM B564 Hastelloy B2 Flanges
- ➤ Specifications of ASTM B564 Hastelloy B2 Flanges
- ➤ Chemical Composition of Hastelloy B2 (UNS N10665)
- ➤ Mechanical Properties of Werkstoff No 2.4617 SWRF Flanges
- ➤ Applications of Hastelloy B2 Flanges
- ➤ Why Choose Hastelloy B2 Over Other Alloys?
Key Features & Advantages of ASTM B564 Hastelloy B2 Flanges
- Excellent resistance to hydrochloric acid
- Superior performance in reducing environments
- High mechanical strength
- Long service life
- Low maintenance cost
- Easy fabrication and welding
Types of ASTM B564 Hastelloy B2 Flanges
We manufacture and supply a complete range of flange types:
➤ Hastelloy B2 Weld Neck Flanges
- Ideal for high-pressure applications
- Provides strong, leak-proof connections
- Used in critical pipelines
➤ Hastelloy B2 Slip On Flanges
- Easy to install and align
- Cost-effective for low-pressure systems
➤ ASTM B564 Hastelloy B2 Threaded Flange
- No welding required
- Used in explosive or sensitive environments
➤ UNS N10665 B2 Blind Flanges
- Used to seal pipe ends
- Prevents leakage and ensures safety
➤ DIN 2.4617 Socket Weld Flanges
- Ideal for small diameter, high-pressure lines
➤ DIN 2.4617 Lap Joint Flanges
- Best for systems requiring frequent dismantling
➤ ANSI B16.5 Hastelloy B2 Square Flanges
- Used in specialized industrial applications
➤ Werkstoff No 2.4617 SWRF Flanges
- Enhanced sealing with raised face design
➤ ASME SB564 Alloy B2 5D Weldoflange
- Combines flange + branch connection
- Reduces welding joints
➤ GOST ХН65МВУ Threaded Flanges
- Russian standard equivalent
- Used in international projects
Specifications of ASTM B564 Hastelloy B2 Flanges
| Specification | Details |
|---|---|
| Standard | ASTM B564 / ASME SB564 |
| Material | UNS N10665 / DIN 2.4617 |
| Size | ½” to 48” NB |
| Pressure Class | 150# – 2500# |
| Face Type | RF, FF, RTJ |
| Standards | ANSI B16.5, DIN, EN, GOST |
Chemical Composition of Hastelloy B2 (UNS N10665)
| Element | Composition (%) |
|---|---|
| Nickel (Ni) | Balance |
| Molybdenum (Mo) | 26 – 30 |
| Iron (Fe) | ≤ 2.0 |
| Chromium (Cr) | ≤ 1.0 |
| Carbon (C) | ≤ 0.02 |
Mechanical Properties of Werkstoff No 2.4617 SWRF Flanges
| Property | Value |
|---|---|
| Tensile Strength | 790 MPa |
| Yield Strength | 350 MPa |
| Elongation | 40% |
| Density | 9.24 g/cm³ |
Applications of Hastelloy B2 Flanges
- Chemical Processing Industry: Used in reactors and pipelines handling aggressive acids.
- Petrochemical Industry: Ideal for high-temperature chemical transport.
- Marine Industry: Resists seawater corrosion effectively.
- Pharmaceutical Industry: Ensures contamination-free processing.
- Power Plants: Used in flue gas desulfurization systems.
Related Hastelloy Steel Flanges
- Hastelloy C22 Flanges
- Hastelloy C276 Flanges
- Inconel 625 Flanges
- Monel 400 Flanges
- Nickel Alloy 200 Flanges
Why Choose Hastelloy B2 Over Other Alloys?
➤ Real Industry Experience
We have supplied Hastelloy B2 Flanges to chemical plants, refineries, and EPC contractors globally.
➤ Strict Quality Control
- PMI Testing
- Ultrasonic Testing
- Hydro Testing
- Third-party inspection (SGS, TUV, BV)
➤ Wide Inventory
We stock all major types including
- ASTM B564 UNS N10665 Blind Flange
- Hastelloy B2 Slip On Flanges
- DIN 2.4617 Lap Joint Flanges
➤ Custom Manufacturing
We produce flanges as per drawings and project requirements.
Packaging & Supply
We ensure safe delivery using:
- Wooden boxes
- Pallet packaging
- Moisture-proof wrapping
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