Youfa Brand Hot Dipped Galvanized Carbon Steel Welded Pipe
Hot Dip Galvanized Steel Brief Introduction
The hot-dip galvanizing process immerses steel into molten zinc, allowing the zinc to react with the iron and create a durable protective coating against rust and corrosion. Hot-dip galvanized pipes are widely used across residential, commercial, and industrial projects. Available in multiple shapes and sizes, they are suitable for both new installations and maintenance work. The zinc coating on galvanized steel pipes typically averages around 30 μm. With proper upkeep, these pipes can serve reliably for many years, offering a long-lasting and cost-efficient solution for both homeowners and businesses.
| DN | OD | OD (mm) |
ASTM A53 GRA / B | ASTM A795 GRA / B | OD (mm) |
BS1387 EN10255 | ||||
| SCH10S | STD SCH40 |
SCH10 | SCH30 SCH40 |
LIGHT | MEDIUM | HEAVY | ||||
| MM | INCH | MM | (mm) | (mm) | (mm) | (mm) | MM | (mm) | (mm) | (mm) |
| 15 | 1/2" | 21.3 | 2.11 | 2.77 | / | 2.77 | 21.3 | 2 | 2.6 | / |
| 20 | 3/4" | 26.7 | 2.11 | 2.87 | 2.11 | 2.87 | 26.7 | 2.3 | 2.6 | 3.2 |
| 25 | 1" | 33.4 | 2.77 | 3.38 | 2.77 | 3.38 | 33.4 | 2.6 | 3.2 | 4 |
| 32 | 1-1/4" | 42.2 | 2.77 | 3.56 | 2.77 | 3.56 | 42.2 | 2.6 | 3.2 | 4 |
| 40 | 1-1/2" | 48.3 | 2.77 | 3.68 | 2.77 | 3.68 | 48.3 | 2.9 | 3.2 | 4 |
| 50 | 2" | 60.3 | 2.77 | 3.91 | 2.77 | 3.91 | 60.3 | 3.2 | 3.6 | 4.5 |
| 65 | 2-1/2" | 73 | 3.05 | 5.16 | 3.05 | 5.16 | 76 | 3.2 | 3.6 | 4.5 |
| 80 | 3" | 88.9 | 3.05 | 5.49 | 3.05 | 5.49 | 88.9 | / | 4 | 5 |
| 90 | 3-1/2" | 101.6 | 3.05 | 5.74 | 3.05 | 5.74 | 101.6 | 3.6 | / | / |
| 100 | 4" | 114.3 | 3.05 | 6.02 | 3.05 | 6.02 | 114.3 | / | 4.5 | 5.4 |
| 125 | 5" | 141.3 | 3.4 | 6.55 | 3.4 | 6.55 | 141.3 | / | 5 | 5.4 |
| 150 | 6" | 168.3 | 3.4 | 7.11 | 3.4 | 7.11 | 165 | / | 5 | 5.4 |
| 200 | 8" | 219.1 | 3.76 | 8.18 | 4.78 | 7.04 | 219.1 | / | / | / |
| 250 | 10" | 273.12 | 4.19 | 9.27 | 4.78 | 7.8 | 273.1 | / | / | / |
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