Carbon Steel Flanges

Carbon steel Flanges ASTM material Standard:

ASTM A105: Forged carbon steel for high-temperature service.

ASTM A350 (LF2): Grades for low-temperature environments.

ASTM A694: High-yield grades for high-pressure pipelines.
 

Types of Carbon Steel Flanges:

Types: WN Flange, LWN Flange, SO Flange, SW Flange, Blind Flange, Plate Flange, Threaded Flange, Lap Joint Flange, Orifice Flange, Spectacle blind flange.

Special products: rings, forged parts, disc, shaft sleeve

WN Flange	SO Flange	SW Flange	Blind Flange
Plate Flange	LWN Flange	Threaded Flange	Orifice Flange
Lap-Jiont Flange	Disc	Ring	Spectacle Blind Flange

Carbon steel Flanges ASME Specifications:

Carbon steel WN Flanges Specifications:

Standard: ASME B16.5, ASME B16.47A, ASME B16.47B, EN, BS

Class: 150#-2500#,  PN2.5-PN100

Size: 1/2”-48”, DN10-DN4000

Carbon steel SO Flanges Specifications:

Standard: ASME B16.5, DIN2543, DIN 2544, DIN 2545

Class: 150#-2500#,  PN16, PN25, PN40

Size: 1/2”-24”, DN10-DN1000
 

Carbon steel SW Flanges Specifications:

Standard: ASME B16.5

Class: 150#-1500#

Size: 1/2"-3"(Except 1500# 1/2"-2 1/2")

Carbon steel Threaded Flanges Specifications:

Standard: ASME B16.5, DIN2565, DIN2567, DIN2568, DIN2569, JIS B2220

Class: 150#-900#, 1500#, 2500#, PN6, PN16, PN25, PN40, PN64, PN100

Size: 1/2"-24", DN6-DN200

Carbon steel Blind Flanges Specifications:

Standard: ASME B16.5, ASME B16.47A, ASME B16.47B, DIN2527, EN

Class: 75#-2500#, PN2.5-PN100

Size: 1/2"-48", DN10-DN4000

Carbon steel Flanges Applications

Oil & Gas: Pipelines, refineries, and offshore platforms (ASTM A694 flanges).

Chemical Plants: Non-corrosive fluid handling.

Power Generation: Steam and water lines in boilers/turbines.

Water Treatment: Cost-effective for municipal water systems

A series of tests are made for the Quality Assurance

Non-Destructive Testing (NDT)

Radiographic Testing (RT)

Ultrasonic Testing (UT)

Magnetic Particle (MT) & Liquid Penetrant (PT)

Hydrostatic Testing

Mechanical Tests: Tensile, impact, and hardness tests validate material properties.

Certification: Mill Test Reports (MTRs) confirm compliance with standards.

HT PIPE is a pipeline manufacturer specializing in the production of flanges, we offer a wide range of Carbon and Stainless steel and Nickel Alloy materials, if you have a steel pipe, pipe fittings, flanges needs, please contact us, look forward to cooperation with you!