It means that the steel nipple is made of seamless steel pipe or weld steel pipe, and makes double-ends processing external threads after the sandstone process.

Black Steel Pipe Nipple Seamless / Welded Dimensions

Steel Nipple Black Seamless/Welded VS Galvanized

1. Material (Similarity):

Both steel nipple blacked and galvanized are Carbon Steel.

2. Thickness (Similarity):

Both steel nipple blacked and galvanized thickness are SCH40 if there is no special requirements.

3. Range of Applications (Similarity):

Standard: ANSI/ASTM A733, DIN 2982, BS 1387, JIS B2302

Size: 1/8"-6"(DN6-DN150)

Finishing: Black, Galvanized.

4. Installation (Similarity):

All black nipple pipe and galvanized are connected with the female threaded end, installation is no difference.

Today, Hebei Leading, as a group company, is not only manufacturing resilient seated gate valve and flanges but also is optimized to meet the needs of our customers with exceptional service and superior quality in flow control industry, such as pipes, pipe fittings, and other kinds of valves, all of them comply with the international standards and requirements.