What Are The S320GD Steel Equivalent Grades?

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.

S320GD Equivalent Grades

S320GD is equivalent to the European standard EN10346:2015 grade 1.0250.

GNEE STEEL manufactures S320GD steel in compliance with EN10346:2015 and other international standards, ensuring consistent quality, durability, and corrosion resistance

Mechanical Properties

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	Coating	Standard	Yield strength R_e¹⁾ (min MPa)	Tensile strength R_m (min MPa)	Elongation A₈₀²⁾ (min %)
S220GD	Z, ZA, ZF	EN 10346	220	300	20
S250GD	Z, ZA, ZF	EN 10346	250	300	19
S280GD	Z, ZA, ZF	EN 10346	280	360	18
S320GD	Z, ZA, ZF	EN 10346	320	390	17
S350GD	Z, ZA, ZF	EN 10346	350	420	16

¹⁾ If no pronounced yield point is present, the 0.2 % yield point value R_p0,2 is used. If the yield point is pronounced, the values apply to the upper yield point R_eH.

²⁾ Decreased minimum elongation A₈₀ values apply to thicknesses 0.50mm < t ≤ 0.70mm (minus 2 units) and t ≤ 0.50mm (minus 4 units).

Material Testing

Testing direction of metal coated structural steels is longitudinal to the rolling direction.

Each metal coated mother coil is regarded as one test unit. Mechanical properties (EN-ISO 6892-1) and coating mass (EN 10346) are determined per test unit.

An inspection document of the required type according to EN 10204 is provided when agreed in the order.

Features

S320GD galvanized steel coils could bring the following benefits to your project:

Tough Against Rust – Stands up to weather and doesn't rust easily.

Lasts Long – The zinc layer keeps it going strong for years.

Super Strong – Built to handle heavy-duty jobs without bending or breaking.

Saves Money – Less maintenance needed, so it's cost-effective.

Multi-Purpose – Fits a wide range of uses, from buildings to cars.

Easy to Shape – Flexible enough for all kinds of projects.

Easy to Weld – Works well with welding, so no hassle in production.

Clean Look – Smooth surface that looks good in visible applications.

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

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:

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.

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.

What is the difference between S320GD and lower-grade galvanized steel?

S320GD offers higher yield strength and better load-bearing capacity while maintaining good formability and corrosion resistance.

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.