S320GD galvanized steel
Looking for trusted S320GD galvanized steel plate manufacturers in China? You've come to the right place. As a direct factory with 20 years of structural steel experience, GNEE Steel supplies EN 10346 compliant S320GD+Z sheets at factory prices.
In this guide, we'll update the 2026 latest price list and help you calculate the total landing cost including freight and customs. More importantly, we'll explore why S320GD galvanized steel has become the top choice for bridges, buildings, and industrial structures worldwide.
S320GD galvanized steel
S320GD Galvanized Steel Chemical Composition for Structural Stability
The chemical composition of S320GD galvanized steel is tailored to meet structural engineering's strict requirements for strength and durability. Below is the certified composition (compliant with EN 10346):
|
Element |
Content (wt%) |
Role in Structural Performance |
|
Carbon (C) |
≤0.12 |
Ensures weldability and avoids brittleness |
|
Silicon (Si) |
≤0.50 |
Enhances strength without reducing ductility |
|
Manganese (Mn) |
≤1.60 |
Improves tensile strength and formability |
|
Phosphorus (P) |
≤0.025 |
Minimizes brittle fracture risk |
|
Sulfur (S) |
≤0.025 |
Prevents cracking during welding and bending |
|
Aluminum (Al) |
≥0.020 |
Promotes grain refinement and coating adhesion |
|
Nitrogen (N) |
≤0.015 |
Controls structural uniformity |
This balanced composition ensures S320GD+Z sheets can withstand dynamic loads and harsh environmental conditions.
Mechanical Properties of S320GD Galvanized Steel for Structural Loads
Structural projects demand with reliable strength and toughness. The mechanical properties of S320GD galvanized steel exceed industry standards for structural applications:
|
Mechanical Property |
Value |
Test Standard |
Structural Advantage |
|
Yield Strength (σs) |
≥320MPa (≤3mm thickness) |
EN 10002-1 |
Supports heavy static/dynamic loads |
|
Yield Strength (σs) |
≥300MPa (>3mm thickness) |
EN 10002-1 |
Maintains strength in thick structural components |
|
Tensile Strength (σb) |
400-550MPa |
EN 10002-1 |
Resists deformation under stress |
|
Elongation (A80) |
≥22% |
EN 10002-1 |
Enables bending and forming for complex structures |
|
Impact Energy (KV) |
≥27J (-20°C) |
EN 10045-1 |
Withstands low-temperature brittleness |
|
Hardness (HV) |
120-160 |
EN ISO 6507-1 |
Balances wear resistance and processability |
These properties make S320GD galvanized steel suitable for critical structural parts like beams, columns, and bracing systems.
S320GD Galvanized Steel Size & Thickness Options for Structural Projects
GNEE Steel offers a comprehensive range of sizes to match diverse structural needs. Below is the standard size table for S320GD+Z sheets:
|
Thickness (mm) |
Width (mm) |
Length (mm) |
Common Structural Applications |
Tolerance (Thickness) |
|
1.0-3.0 |
600-2000 |
1000-12000 |
Roofing, wall panels, light frames |
±0.05mm |
|
3.1-10.0 |
600-3000 |
2000-12000 |
Beams, columns, trusses |
±0.10mm |
|
10.1-20.0 |
600-2500 |
2000-8000 |
Bridge components, heavy frames |
±0.20mm |
|
20.1-50.0 |
600-2000 |
2000-6000 |
Industrial structural bases |
±0.30mm |
Custom sizes are available for special projects (e.g., extra-wide sheets for bridge decks).
2026 S320GD Galvanized Steel Price List for Structural Procurement
For structural projects, cost transparency is key. Below is GNEE Steel's 2026 ex-factory price list for S320GD galvanized steel:
|
Thickness (mm) |
Z80 Coating (USD/ton) |
Z120 Coating (USD/ton) |
ZA150 Coating (USD/ton) |
Minimum Order |
|
1.0-3.0 |
$760-820 |
$790-850 |
$830-890 |
5 tons |
|
3.1-10.0 |
$730-790 |
$760-820 |
$800-860 |
10 tons |
|
10.1-20.0 |
$710-770 |
$740-800 |
$780-840 |
15 tons |
Bulk orders (≥50 tons) enjoy an extra 3-5% discount. Landing cost calculation includes freight, customs, and tariffs.
Weldability & Formability of S320GD Galvanized Steel for Structural Fabrication
Structural projects require extensive welding and forming. S320GD galvanized steel excels in both areas:
- Weldability: Low carbon content (≤0.12%) and controlled sulfur/phosphorus levels prevent weld cracking. It supports MIG, TIG, and arc welding without preheating (for thickness ≤10mm).
- Formability: Elongation ≥22% allows bending, rolling, and stamping into complex shapes (e.g., curved beams for stadiums).
- Post-Processing: The galvanized coating remains intact after forming, eliminating the need for re-coating.
S320GD galvanized steel stands out as an ideal choice for structural projects due to its balanced chemical composition, superior mechanical properties, corrosion resistance, and flexible sizing. GNEE Steel's factory-direct prices and 20 years of structural steel expertise ensure reliable supply for your projects.
Whether you're building a bridge, commercial building, or industrial facility, S320GD galvanized steel delivers durability, safety, and cost-effectiveness. Don't miss the 2026 competitive pricing and customized solutions. Get your 2026 S320GD galvanized steel factory price list + landing cost calculator – Contact our team now!