S220GD Galvanized Steel Pipe
Product Description
S220GD galvanized steel pipe is a high-strength, corrosion-resistant steel pipe made from hot-dip galvanized steel. It is primarily used in construction, infrastructure, and industrial applications due to its durability and resistance to rust, making it ideal for outdoor and marine environments. The “S220” in the designation refers to its minimum yield strength of 220 MPa, while the “GD” indicates its galvanized coating, which enhances protection against corrosion. This type of steel pipe combines the structural strength of steel with the protective benefits of zinc coating, providing a long-lasting, low-maintenance solution for various piping needs.
Galvanized Steel Pipe/Tube Standard Specification
| Standard | ASTM, AISI, SUS, JIS, EN, DIN, BS, GB, etc. |
| Material | Q235, Q195, 0345, SPCC,SPCD, SPCE, SPCEN, ST12, ST13, ST14, ST15, ST16, DC01, DC03, DC04, DC05, DC06, etc.; or as Customer’s Requirement |
| Thickness | Round Pipe: 0.8-10.0mm,As Your Request Square Pipe: 1.2mm~20mm,As Your Request |
| Length | 6.0m, 6.5m, 5.0m, 4.0m, 3.0m,1m-12m, by customer's requiremnts |
| Diameter | Round Pipe: 1/2“-12"(21 3-323.9mm) Square Pipe: 20*20mm~500*500mm Rectangular Pipe: 20*40mm~300*500mm |
| Zinc Coating | Pre-galvanized (Zinc coating. 40-80g/m2) Hot dipped galvanized (Zinc coating: 200-600g/m2) |
| Surface Treatment | Black Painted, PE Coated, Galvanized or Customized all available |
| Technique | Welded, Seamless |
| Quality | ISO 9000-2001, CE CERTIFICATE, BV CERTIFICATE |
Delong Warehouse
Product Inspection
The appearance of the coating is bright, meticulous, without sagging or wrinkles. Thickness inspection can use coating thickness gauge, the method is relatively simple. The thickness of the coating can also be obtained by converting the amount of zinc adhesion. For the bonding strength, a bending press can be used to bend the sample at 90-180°, and there should be no cracks or peeling of the coating. A heavy hammer can also be used to test, and the salt spray test and copper sulfate corrosion test can be done in batches.
Product Measurement
Product Packaging
