3 Inch Schedule 40 Carbon Steel GI Pipe
3 Inch Schedule 40 Carbon Steel GI Pipe
3 Inch Schedule 40 carbon steel GI pipe made to ASTM A53 Grade B. Hot dipped galvanized coating provides reliable corrosion resistance. ERW welded construction, standard wall thickness, available in 5.8m or 6m lengths. Commonly used for water supply, fire protection and general construction piping projects.
- Mill Test Certificate Provided
- Strict Quality Inspection
- Custom Sizes Available
- On-Time Global Delivery
This 3 Inch Schedule 40 carbon steel GI pipe follows ASTM A53 Grade B standard. It is manufactured by ERW welding process and finished with hot dipped galvanized coating to resist rust when exposed to moisture and outdoor environments.
The pipe comes in standard 6-meter lengths, with consistent wall thickness matching Schedule 40 specs. Our galvanized layer adheres tightly to the steel base, reducing peeling during cutting, bending or onsite installation.
It fits most standard fittings for easy assembly. Widely used for water distribution lines, fire sprinkler piping and general construction utilities. We can cut to custom lengths and provide MTC material test certificates upon request. Available in bulk shipments for commercial and residential projects.
Product Features
| Item | Features |
|---|---|
| Material | Carbon steel base, ASTM A53 Grade B grade, stable mechanical property for piping work |
| Size | 3 Inch, Schedule 40, fixed OD and wall thickness to match standard fittings |
| Production | ERW welded pipe, controlled welding seam for consistent structural integrity |
| Surface | Hot dipped galvanized finish, good adhesion to reduce rust in wet conditions |
| Length | Standard 6m length, custom cut lengths available based on project needs |
| Documentation | MTC material test certificate can be supplied for inspection |
Product Applications
This 3 Inch Schedule 40 carbon steel GI pipe is commonly used in practical piping systems where strength, corrosion resistance and standard fitting compatibility are important.
Water supply – Used in commercial and industrial water distribution lines, especially for mains and branch piping that require durable, leak-resistant connections.
Fire protection – Suitable for fire sprinkler and standpipe systems, where Schedule 40 wall thickness and galvanized coating support reliable performance.
Construction & building services – Applied in utility shafts, plant rooms and general service piping for chilled water, compressed air and industrial fluids.
Fence, guardrail and structural supports – Used as posts, horizontal rails and structural supports for industrial fencing, perimeter guards and temporary site structures.
Frequently Asked Questions About 3 Inch Schedule 40 Carbon Steel GI Pipe
1. What standard does this 3 Inch Schedule 40 GI pipe follow?
It is made to ASTM A53 Grade B, the common standard for carbon steel galvanized piping.
2. What is the typical length you supply?
Standard length is 6 meters. We offer custom cutting if you need shorter lengths for your project.
3. Is the galvanized coating hot-dipped?
Yes, hot dipped galvanized finish. The zinc layer helps prevent rust in normal outdoor and wet environments.
4. Can you provide material test certificates?
Yes, MTC will be issued with shipments. It lists chemical composition and mechanical properties for inspection.
5. What fittings work with this pipe?
It matches standard Schedule 40 threaded or butt-weld fittings widely available on the market.
6. What is your minimum order quantity?
MOQ depends on total weight. Small trial orders are acceptable, but freight cost will be higher for small lots.
