Premium pre-galvanized steel pipe made from cold-rolled steel strip, Q195/Q235B/Q355B, zinc coating 30–120g/m². Welded round/square/rectangular tubes with great corrosion resistance and cost performance. Widely used in construction, fence, greenhouse and plumbing.
Our pre-galvanized steel pipes are welded from galvanized steel strips, featuring uniform zinc coating, smooth surface, excellent corrosion resistance and competitive price. Compared with hot-dip galvanized pipes, it has more consistent zinc layer, ideal for indoor, dry and mild outdoor environments.
Specifications and Parameters:
● Name: Pre-Galvanized Steel Strip Welded Tube
● Material: Q195/Q235B/Q355B, DX51D+Z, low carbon steel with high strength
● Zinc Coating: 30–120g/m² (10–40μm), uniform and anti-peeling
● Size Range: DN15 (1/2″) – DN200 (8″), OD 21.3–219.1mm
● Wall Thickness: 0.6–6.0mm, customizable
● Length: 6m standard, 1–12m customized
● Shape: Round, Square, Rectangular
● Standards: ASTM A53, BS1387, EN10255, GB/T3091
Product Features:
● Made of high-quality Q195/Q235B/Q355B low carbon steel, sturdy and durable.
● Uniform zinc coating of 30–120g/m², excellent anti-rust and corrosion resistance.
● Smooth surface without burrs, no zinc peeling or leakage.
● Standard size range: DN15–DN200, wall thickness 0.6–6.0mm, 6m standard length.
● Multiple shapes available: round, square and rectangular pipe.
● Various pipe end treatments: plain, bevelled and threaded.
● Compliant with ASTM A53, BS1387, EN10255, GB/T3091 international standards.
● Cost-effective, easy to cut, install and transport.
● Wide application for construction, fence, greenhouse, plumbing and furniture.
● Strict quality inspection, supported by ISO9001, SGS and CE certificates.
| Item |
Specification |
| Product Name |
Pre-Galvanized Steel Pipe / Galvanized Strip Tube |
| Material Grade |
Q195、Q235B、Q355B、DX51D+Z |
| Standards |
ASTM A53、BS1387、EN10255、GB/T3091 |
| Outer Diameter |
21.3mm(DN15) – 219.1mm(DN200) |
| Wall Thickness |
0.6mm – 6.0mm |
| Length |
6m standard, 1–12m customized |
| Zinc Coating |
30–120g/m² (10–40μm) |
| Shape |
Round, Square, Rectangular |
| Pipe Ends |
Plain, Bevelled, Threaded |
| MOQ |
1 Ton |
| Price Term |
EXW, FOB, CIF |
| Delivery Time |
7–15 days |
| Certificates |
ISO9001、SGS、CE |
Frequently Asked Questions (FAQ):
Q: Can you customize size and length?
A：Yes, we customize outer diameter, wall thickness, length and pipe shapes.
Q:What’s your payment term?
A:T/T (30% deposit, 70% balance before shipment) and L/C are acceptable.
Q: What’s the difference between pre-galvanized and hot-dip galvanized pipe?
A：Pre-galvanized pipe is made of galvanized steel strip with zinc coating 30–120g/m², smooth surface and lower price. Hot-dip galvanized pipe is dipped after welding with thicker zinc layer, better for harsh outdoor conditions.
