GI vs MS Pipe Nipples: Which One Should You Buy?
GI and MS Pipe Nipples look almost the same in a drawing, but they are made for different jobs. Choosing the right one saves money and avoids rust problems later.
What is a pipe nipple?
A pipe nipple is a short length of pipe with threads on both ends. It joins two threaded fittings, or connects a pipe line to a fitting or a piece of equipment. Nipples are sold by size (the pipe size, like ½” or 2”) and length.
GI Pipe Nipples
GI stands for galvanised iron. A GI nipple is made from steel pipe with a zinc coating. The zinc protects the steel from rust, so GI is the usual choice wherever water flows through the pipe for years.
Common uses:
- Drinking water supply lines
- Jal Jeevan Mission (JJM) / Har Ghar Jal projects
- Agriculture and irrigation lines
MS Pipe Nipples
MS stands for mild steel. An MS nipple is made from black steel pipe without a zinc coating. It is strong and more economical than GI.
Common uses:
- Fire-fighting lines
- Industrial piping
- HVAC chilled water lines
Quick comparison
| GI Pipe Nipples | MS Pipe Nipples | |
|---|---|---|
| Material | Galvanised (zinc-coated) steel pipe | Black mild steel pipe |
| Rust protection | Zinc coating | None (painted or protected on site) |
| Typical use | Water supply, JJM, agriculture | Fire-fighting, industrial, HVAC |
| Sizes we make | ½” to 4” | ½” to 4” |
| Threads | BSP, both ends | BSP, both ends |
Which one should you choose?
- Carrying drinking or irrigation water? Choose GI.
- Building a fire-fighting, industrial or chilled water line? MS is the common choice.
- Not sure? Tell us where the nipple will be used and we will suggest the right one.
What to tell us when you order
To get a quick, accurate quote, send us:
- GI or MS
- Size (for example 1” or 2½”)
- Length of each nipple
- Quantity
- Delivery city
Atul Pipe Industries has made GI and MS Pipe Nipples since 1997, with BSP threads, made as per IS 1239, in standard and custom lengths.
