Grade 50 / SGC 490 / SGCC / SGCD Hot Dipped Galvanized Steel Strip with Regular or Big Spangle

1．Product Overview

Grade 50, SGC 490, SGCC, and SGCD hot dipped galvanized steel strip is designed for industrial fabrication, welded pipe manufacturing, construction components, appliance panels, automotive applications, and corrosion-resistant steel processing.

The steel strip is manufactured using continuous hot dip galvanizing technology to provide stable zinc coating adhesion, dimensional consistency, and long-term corrosion protection.

Regular and big spangle surface finishes are available for different appearance and processing requirements.

2．Technical Solution

The galvanized steel strip is produced according to ASTM A653, JIS G3302, DIN, AISI, and GB standards using commercial and structural steel grades including SGCC, SGCD, SGC 490, DX51D+Z, Q195, and Grade 50.

The zinc coating range from Z60 to Z275 provides corrosion resistance for indoor, outdoor, and industrial service conditions.

Surface treatment options include galvanized, oiled, and anti-fingerprint treatment to improve storage stability and transportation protection.

3．Specifications

4．Application

The galvanized steel strip is widely used for greenhouse pipes, gas pipes, heating pipes, roofing reinforcement, roof grilles, construction framing, appliance shells, kitchen equipment, automotive corrosion-resistant components, refrigeration systems, packaging materials, and general steel fabrication.

It is suitable for continuous roll forming, welded tube production, and structural processing applications.

5．Processing

• The strip supports slitting, bending, stamping, roll forming, profiling, and pipe welding.
• Oiled and anti-fingerprint surfaces help reduce oxidation risk and improve handling during fabrication and export transportation.
• Custom width slitting and coil processing are available according to project requirements.

6．Advantages

• The Z60–Z275 coating range provides stable corrosion resistance for industrial and outdoor applications.
• Multiple steel grades support commercial forming, structural fabrication, and higher-strength processing requirements.
• Regular and big spangle finishes support decorative and industrial appearance requirements.
• Continuous galvanizing technology ensures stable coating adhesion and dimensional consistency.
• Suitable for welding, roll forming, stamping, and structural fabrication applications.

7．How to Choose

• Choose SGCC for general forming and commercial fabrication.
• Choose SGCD for improved drawing and forming applications.
• Choose Grade 50 or SGC 490 for higher strength structural applications.
• Choose higher zinc coating levels for humid or outdoor environments.
• Choose minimized or zero spangle for smoother painted or decorative surfaces.
• Choose anti-fingerprint treatment when cleaner handling and improved storage performance are required.

8．FAQ

Q1．What is the main use of galvanized steel strip
It is mainly used for welded pipes, construction components, appliance parts, automotive applications, and industrial fabrication.

Q2．What zinc coating range is available
The available zinc coating range is Z60–Z275.

Q3．What surface treatments are available
Galvanized, oiled, and anti-fingerprint surface treatments are available.

Q4．What spangle types are available
Regular, big, minimized, and zero spangle finishes are available.

Q5．Can the strip be supplied in custom slit widths
Yes. Slitting service is available according to customer processing requirements.