S320GD Steel
S320GD is a high-strength hot-dip galvanized low-carbon steel. The zinc coating on its surface provides added corrosion resistance and extends its lifespan. It contains elements like iron, carbon, manganese, and silicon, which give it good strength and formability.
The steel is easy to work with - it can be cut, bent, and stamped into various shapes, making it adaptable for different design and manufacturing needs. This flexibility makes it useful across a range of industries.
This grade is eminently superb with regard to mechanical performance and is, therefore, widely applicable in structural uses. With very high values of yield strength and tensile strength, it is durable and, therefore, able to resist stressed deformation. It also possesses good elongation properties, under dynamic stresses, so that the steel can maintain the integrity of its structure. In addition, its impact resistance holds out against the strain of harsh environmental conditions, which commonly renders it into a very versatile steel in construction.
Exploring the Yield Strength of S320GD
| Key Point | Details |
|---|---|
| Material Number | 1.0250 |
| Standard | EN 10346 |
| Yield Strength | ≥ 320 MPa |
| Tensile Strength | 390-530 MPa |
| Elongation at Break | ≥ 17% |
| Chemical Composition | C ≤ 0.20%, Si ≤ 0.60%, Mn ≤ 1.70% |
| Coating Options | Z, ZF, ZA, ZM, AZ, AS |
| Corrosion Resistance | Enhanced by zinc coating |
| Applications | Construction, automotive, appliances |
| Thickness Range | 0.40-4.00 mm |
| Width Range | Up to 1,620 mm |
S320GD Galvanized Steel Applications
GNEE STEEL supplies S320GD steel in coils and strips, ensuring reliable quality tailored to diverse industry needs. It combination of durability, strength, and cost efficiency.
Construction and Infrastructure: Roofing panels, wall cladding, structural frameworks, bridges, guardrails, and support beams.
Automotive Industry: Body panels, chassis components, reinforcements, crash-resistant structures.
Manufacturing and Engineering: Metal enclosures, HVAC ducts, electrical cabinets, storage systems, and machinery parts.
Agricultural Equipment: Silos, fencing, farm machinery, outdoor storage facilities.
Energy and Utilities: Power transmission towers, solar panel supports, wind turbine components, industrial pipelines, and water tanks.
Available Steel Grade
|
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 |
Mechanical Properties
|
Grade |
Yield Strength MPa≥ |
Tensile Strength MPa≥ |
Elongation A%≥ |
|
DX51D Z/ZM/AZ/AM |
240-380 |
270-500 |
22 |
|
DX52D Z/ZM/AZ/AM |
140-300 |
270-420 |
26 |
|
DX53D Z/ZM/AZ/AM |
140-260 |
270-380 |
30 |
|
DX54D Z/ZM/AZ/AM |
120-220 |
260-350 |
36 |
|
S220GD Z/ZM/AM |
220 |
300 |
20 |
|
S250GD Z/ZM/AZ/AM |
250 |
330 |
19 |
|
S280GD Z/ZM/AM |
280 |
360 |
18 |
|
S300GD A/AM |
300 |
380 |
18 |
|
S320GD Z/ZM/AM |
320 |
390 |
17 |
|
S350GD Z/ZM/AZ/AM |
350 |
420 |
16 |
|
S450GD A/AM |
450 |
480 |
15 |
|
S550GD Z/ZM/AZ/AM |
550 |
550 |
- |
S320GD Galvanized Steel – Frequently Asked Questions (FAQ)
1. What is S320GD galvanized steel?
S320GD galvanized steel is a structural-grade steel designed for hot dip galvanizing, offering a minimum yield strength of 320 MPa combined with excellent corrosion resistance.
2. What does S320GD mean?
S: Structural steel
320: Minimum yield strength (320 MPa)
GD: Supplied in galvanized condition
3. Is S320GD a high-strength steel?
Yes. Compared with common galvanized grades, S320GD is considered a medium to high-strength structural steel suitable for load-bearing applications.
4. What is S320GD galvanized steel mainly used for?
It is widely used in construction structures, steel framing, roofing systems, industrial equipment, and support components.
5. What standards cover S320GD galvanized steel?
S320GD is commonly produced according to international galvanized steel standards such as EN specifications for structural galvanized steel.
6. What is Z275 coating in S320GD+Z275?
Z275 indicates a zinc coating mass of 275 g/m² (total both sides), providing strong corrosion protection for outdoor and structural use.
7. Is Z275 enough for outdoor applications?
Yes. Z275 is suitable for most outdoor environments, including urban and rural areas. For coastal or highly corrosive environments, higher zinc coatings may be recommended.
