Large Diameter Stainless Steel Butt Welding Flange, Butt Welding Flange

China Large Diameter Stainless Steel Butt Welding Flange, Butt Welding Flange, Find details about China Butt Welding Flange, Flange from Large Diameter Stainless Steel Butt Welding Flange, Butt Welding Flange

Basic Info.

Model NO.

DN8-DN5000

Manufacturing Way

Forging

Trademark

HENGZHAO

Transport Package

Containerization

Specification

customized

Origin

Hebei, China

HS Code

7307110000

Model NO.

DN8-DN5000

Manufacturing Way

Forging

Trademark

HENGZHAO

Transport Package

Containerization

Specification

customized

Origin

Hebei, China

HS Code

7307110000

Product Desciption

Butt welding flange is a kind of pipe fitting, which refers to the flange with a neck and a round pipe transition and butt welding connection with the pipe.

The production process:Forging, casting, plate car system.

The technical requirements:

The grade and technical requirements of butt welding flanges shall meet the corresponding requirements of JB4726-4728.

Butt welding flange is generally made by forging or forging rolling process.

When using steel plate or section steel manufacturing, must meet the following requirements:
1, butt welding flange should be ultrasonic inspection, no layering defects;

2, should be along the steel rolling direction cut into strips, bending welding ring, and make the surface of the steel ring cylindrical. Steel plate shall not be directly machined into butt welding flanges with neck;

3, the butt weld of the ring should adopt full penetration weld;

4. The butt weld of the ring shall be heat treated after welding, and 100% ray or ultrasonic inspection shall be conducted, and the ray inspection shall meet the grade II requirements of JB4730, and the ultrasonic inspection shall meet the grade I requirements of JB4730.