S320GD galvanized steel
Struggling to source high-quality S320GD galvanized steel for automotive component production? Unlike standard suppliers, GNEE specializes in OEM/ODM services for automotive-grade materials.We can produce tailored thickness (0.3-6.0mm, ideal for auto parts), width (up to 2000mm), and zinc coatings (+Z100-Z275) that meet strict automotive standards.
S320GD galvanized steel
Read on to learn how S320GD+Z120 galvanized steel enhances automotive component performance, and our quality control processes for automotive applications.
Galvanized steel is carbon steel coated with zinc to resist corrosion-critical for automotive parts exposed to weather and road conditions.
Common automotive uses include body panels, chassis parts, and structural components. S320GD galvanized steel is a high-strength, formable grade designed to meet automotive lightweighting and safety requirements.
Chemical Composition of S320GD Galvanized Steel for Automotive Use
The precise chemical composition of S320GD galvanized steel ensures it meets automotive manufacturing demands, balancing strength and processability:
| Element | Symbol | Content (Max. %) | Role in Automotive Performance |
|---|---|---|---|
| Carbon | C | 0.12 | Controls strength without reducing weldability |
| Manganese | Mn | 1.60 | Enhances formability for complex auto parts |
| Phosphorus | P | 0.030 | Minimized to prevent brittle fracture in collisions |
| Sulfur | S | 0.025 | Reduced to avoid hot cracking during welding |
| Silicon | Si | 0.40 | Improves zinc coating adhesion for long-term corrosion resistance |
| Aluminum | Al | 0.020 | Enhances heat resistance for paint curing processes |
| Titanium | Ti | 0.20 | Refines grain structure for consistent mechanical properties |
Mechanical Properties of S320GD+Z120 Galvanized Steel for Auto Parts
S320GD+Z120 galvanized steel delivers the mechanical performance required for automotive safety and durability:
| Property | Standard | Value | Automotive Application Requirement |
|---|---|---|---|
| Yield Strength (Min.) | MPa | 320 | Ensures structural integrity in chassis components |
| Tensile Strength | MPa | 400-510 | Provides crash resistance for body structures |
| Elongation (Min.) | % | 24 | Allows deep drawing for complex shapes (e.g., door panels) |
| Bend Test | - | 180° (d=2t) | Withstands forming without coating cracking |
| Zinc Coating Adhesion | - | Grade A (ISO 1460) | Resists peeling during stamping and assembly |
These properties make S320GD galvanized steel suitable for both structural and aesthetic automotive components.
Automotive-Grade S320GD Galvanized Steel Size Specifications
GNEE offers S320GD galvanized steel in sizes optimized for automotive manufacturing:
| Product Form | Thickness Range | Width Range | Length Range | Typical Automotive Applications |
|---|---|---|---|---|
| Coils | 0.3-3.0mm | 800-1800mm | 500-3000m | Body panels, fenders, hoods |
| Cut Sheets | 1.0-6.0mm | 1000-2000mm | 1000-2500mm | Chassis parts, frame components |
| Blanked Parts | 0.5-4.0mm | Custom | Custom | Door inner panels, trunk lids |
All sizes meet automotive industry tolerances (±0.02mm for thickness, ±1mm for length/width).
Key Automotive Applications of S320GD+Z120 Galvanized Steel
S320GD+Z120 galvanized steel is widely used in automotive manufacturing for its unique combination of properties:
- Body-in-White (BIW): Used for roof panels, door frames, and floor pans-benefiting from corrosion resistance and formability.
- Chassis Components: Applied in control arms and cross members, leveraging high strength and impact resistance.
- Exterior Trim: Used for bumpers and mirror housings, where the Z120 coating provides long-term weather protection.
- Underbody Parts: Ideal for fuel tanks and exhaust heat shields, resisting road salt and moisture damage.
S320GD galvanized steel has become a staple in modern automotive manufacturing, offering the perfect balance of strength, formability, and corrosion resistance.Its Z120 zinc coating ensures long-term durability, while its mechanical properties meet strict automotive safety standards.
At GNEE, we supply automotive-grade S320GD galvanized steel with full traceability and certification. Contact us today to request automotive material test reports and a customized S320GD galvanized steel quotation for your production needs.
|
Standard |
Grade |
C |
Si |
Mn |
P |
S |
Ti |
|
Forcold Forming Chinese Standard |
DX51D+Z |
0.12 |
0.50 |
0.60 |
0.100 |
0.045 |
0.30 |
|
DX52D+Z |
0.12 |
0.50 |
0.60 |
0.100 |
0.045 |
0.30 |
|
|
DX53D+Z |
0.12 |
0.50 |
0.60 |
0.100 |
0.045 |
0.30 |
|
|
DX54D+Z |
0.12 |
0.50 |
0.60 |
0.100 |
0.045 |
0.30 |
|
|
DX56D+Z |
0.12 |
0.50 |
0.60 |
0.100 |
0.045 |
0.30 |
|
|
DX57D+Z |
0.12 |
0.50 |
0.60 |
0.100 |
0.045 |
0.30 |
|
|
Forcold Forming Japanese Standard |
SGCC |
0.15 |
0.50 |
0.80 |
0.050 |
0.030 |
0.025 |
|
SGCD1 |
0.12 |
0.50 |
0.60 |
0.040 |
0.030 |
0.025 |
|
|
SGCD3 |
0.08 |
0.50 |
0.45 |
0.030 |
0.030 |
0.025 |
|
|
SGCD4 |
0.06 |
0.50 |
0.45 |
0.030 |
0.030 |
0.025 |
|
|
For Structure Japanese Standard |
SGC340 |
0.25 |
0.50 |
1.70 |
0.200 |
0.035 |
0.025 |
|
SGC400 |
0.25 |
0.50 |
1.70 |
0.200 |
0.035 |
0.150 |
|
|
SGC490 |
0.30 |
0.50 |
2.00 |
0.200 |
0.035 |
0.025 |
|
|
SGC510 |
0.30 |
0.50 |
2.50 |
0.200 |
0.035 |
0.025 |
|
|
For Structure AISI Standard |
S220GD+Z |
0.20 |
0.60 |
0.70 |
0.100 |
0.045 |
0.025 |
|
S250GD+Z |
0.20 |
0.60 |
0.70 |
0.100 |
0.045 |
0.025 |
|
|
S280GD+Z |
0.20 |
0.60 |
0.70 |
0.100 |
0.045 |
0.025 |
|
|
S320GD+Z |
0.20 |
0.60 |
0.70 |
0.100 |
0.045 |
0.025 |
|
|
S350GD+Z |
0.20 |
0.60 |
0.70 |
0.100 |
0.045 |
0.150 |
|
|
S550GD+Z |
0.20 |
0.60 |
0.70 |
0.100 |
0.045 |
0.150 |
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