What Are The Applications Of S320GD Galvanized Steel?

S320GD Galvanized Steel

S320GD is imperative for acceptance in the structural steel market because of its perfect balance of strength, durability, and diversity. The high yield strength of S320GD makes it suitable wherever load-bearing capability is in use. On the other hand, S320GD sustains corrosion-resistance properties that prolong its life in different environmental conditions. It is further capable of deformation to be shaped for all construction and other manufacturing uses as demanded by any industrial steel solution that needs to be reliable and adaptable. These essential features put S320GD on the list of first choices for infrastructure, automotive, or industrial projects.

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.

S320GD Galvanized Steel

S320GD Galvanized Steel Coil Chemical Composition

Element	Maximum Content (%)
Carbon (C)	0.2
Silicon (Si)	0.6
Manganese (Mn)	1.7
Phosphorus (P)	0.1
Sulfur (S)	0.045

S320GD Galvanized Steel Coil Mecahmical Properties

Property	Value
Tensile Strength (Rm)	290 – 390 MPa
0.2% Proof Strength (Rp0.2)	≥ 320 MPa
Minimum Elongation (Lo = 80 mm) (A)	≥ 17%

Note:

The minimum elongation requirement varies with thickness:

0.5 mm < t ≤ 0.7 mm: The minimum elongation is reduced by 2% compared to the listed value.

0.35 mm < t ≤ 0.5 mm: The minimum elongation is reduced by 4% compared to the listed value.

t ≤ 0.35 mm: The minimum elongation is reduced by 7% compared to the listed value.

The tensile strength range for this grade can vary by up to 140 MPa, depending on processing conditions and coating specifications.

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 SGCD2	0.12 0.10	0.50 0.50	0.60 0.45	0.040 0.030	0.030 0.030	0.025 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 SGC440	0.25 0.25	0.50 0.50	1.70 2.00	0.200 0.200	0.035 0.035	0.150 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	-

FAQ:

Can S320GD galvanized steel be welded?

Yes. S320GD can be welded using standard welding methods, but proper ventilation and surface preparation are recommended due to the zinc coating.

Is S320GD suitable for cold forming?

Yes. S320GD has good formability and is suitable for roll forming, bending, and cold shaping processes.

What thickness range is available for S320GD galvanized steel?

S320GD galvanized steel is commonly available from thin gauges (around 0.35 mm) up to structural thicknesses of 6.0 mm or more, depending on supply capability.