Name: ASME SA266 GR.2N Tube Side Flange Connecting The Heat Exchanger Shell And The Tube Box
Brand: YUHONG HOLDING GROUP CO., LTD
SKU: Flange For Heat Exchanger
Availability: InStock

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ASME SA266 GR.2N Tube Side Flange Connecting The Heat Exchanger Shell And The Tube Box

ASME SA266 GR.2N steel flange

heat exchanger tube side flange

tube box connecting flange

Place of Origin:

CHINA

Brand Name:

YUHONG

Certification:

ISO 9001-2015

Model Number:

Flange For Heat Exchanger

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Product Details

Standard:

ASME SA266

Material:

GR.2N

Flange Type:

Side Flange

Pressure:

Class 150# To 2500#

Size Range:

Customizable

Flange Standard:

ANSI B16.5

Highlight:

ASME SA266 GR.2N steel flange

heat exchanger tube side flange

tube box connecting flange

Payment & Shipping Terms

Minimum Order Quantity

1 PC

Price

NON

Packaging Details

WOODEN CASE, Ply-Wooden Cases with Steel Frames

Delivery Time

1 - 4 MONTH

Payment Terms

T/T

Supply Ability

300 TONS / MONTH

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nirit@steelseamlesspipe.com

0086-574-88013900

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Product Description

ASME SA266 GR.2N Tube Side Flange Connecting The Heat Exchanger Shell And The Tube Box

The ASME SA266 Gr.2N Tube Side Flange is a forged steel flange manufactured according to ASME standards for the tube side of shell-and-tube heat exchangers.

This flange is a sealing component used to connect equipment to piping, or between two pieces of equipment.

As a carbon steel forging used in pressure vessels, this product offers excellent pressure resistance and heat resistance.

The Gr.2N material grade and heat treatment state offer good overall performance and moderate cost; N indicates normalizing, a necessary heat treatment that refines the grain size, eliminates forging stress, and stabilizes performance.

This flange can be installed on the tube side of a heat exchanger. Heat exchangers have a tube side (inside the tube bundle) and a shell side (inside the shell), and the tube-side flange is used to connect the tube bundle to the external piping.

Chemical Composition (Ladle Analysis)
Element	Composition (wt%)
Carbon (C)	≤ 0.30
Manganese (Mn)	0.40 – 1.05
Silicon (Si)	0.15 – 0.35
Phosphorus (P)	≤ 0.025
Sulfur (S)	≤ 0.025

Mechanical Properties
Property	Value
Tensile Strength	485 – 655 MPa
Yield Strength (0.2% offset)	≥ 250 MPa
Elongation (in 4D)	≥ 20%

Applications:

Pressure Containment: Designed to withstand the internal pressure of fluids .
Thermal Cycling Resistance: Can handle expansion and contraction from temperature variations .
Maintenance Accessibility: Flanged connections allow for easy disassembly for inspection, cleaning, and repair .
Structural Integrity: The forging process creates a strong, reliable grain structure .

ASME SA266 GR.2N Tube Side Flange Connecting The Heat Exchanger Shell And The Tube Box 0

Ratings& Review

Overall Rating

4.0

Based on 50 reviews for this supplier

Rating Snapshot

The following is the distribution of all ratings

5 stars

33%

4 stars

33%

3 stars

33%

2 stars

1 stars

All Reviews

S*r

Germany Feb 10.2026

Helpful (6)

The normalized state of these flanges is highly uniform. We found no grain issues during subsequent NDT testing, and they fit the shell perfectly.

A*d

United Arab Emirates Nov 26.2025

Helpful (3)

The packaging was very solid; even after long-distance sea freight, there were no dents on the sealing faces.

C*a

Brazil Dec 14.2024

Helpful (3)

We were looking for a reliable supplier for offshore platforms, and the quality of these tube side flanges exceeded expectations. The forging flow lines of the SA266 Gr.2N are very intact.

Tags：

ASME SA266 GR.2N Tube Side Flange Connecting The Heat Exchanger Shell And The Tube Box

ASME SA266 GR.2N steel flange

heat exchanger tube side flange

tube box connecting flange

ASME SA266 GR.2N steel flange

heat exchanger tube side flange

tube box connecting flange

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Overall Rating

Rating Snapshot

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