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G550 Galvanized coil

Galvanized coil G550 belongs to high-strength series galvanized sheet, with high requirements for tensile strength and yield strength. Its minimum yield strength is 560Mpa, minimum tensile strength is 650Mpa, and zinc layer thickness is 275g/m2. It has strong corrosion resistance and is mainly used for building structures with high strength requirements, such as Z-shaped steel, C-shaped steel, floor bearing plate, etc.

Classification :

Galvanized Coil

WhatsApp : +8615688862221

E-mail : QSsteel@tsingshanh.com

PRODUCT DETAILS

G550 galvanized coil is a surface galvanized sheet with yield strength of 235MPa.

Galvanized coil, a thin steel sheet that is dipped into a molten zinc bath to adhere a layer of zinc to its surface. It is mainly produced by the continuous galvanizing process, in which rolls of steel sheet are continuously dipped into a bath of molten zinc to make galvanized steel sheet; alloyed galvanized steel sheet. This steel sheet is also manufactured by the hot dipping method, but immediately after leaving the bath, it is heated to about 500°C to produce an alloyed coating of zinc and iron. This type of galvanized coil has good paint adhesion and weldability.

Item	Specification
Product Name	G550 Structural Galvanized Steel Coil
Place of Origin	China
Type	High-Strength Galvanized Steel Coil
Standard	ASTM A653 (G550), JIS G 3302 (SGCC 550), DIN EN 10346 (S550GD)
Certificate	ISO 9001
Grade	G550 (Min. Yield Strength 550 MPa), Equivalent to SGCC 550, S550GD
Base Steel Grade	High-strength low-alloy (HSLA) or specially processed carbon steel
Thickness	0.1–5.0 mm
Surface Treatment	Anti-fingerprint / Skin pass / Oiled / Dry / Chromated
Coating Type	Electro-galvanized or Hot-dip Galvanized
Coating Mass	Standard coating (e.g., Z60–Z275) or customized
Size	Customized as required
Tolerance	±1%
Processing Service	Bending, Welding, Decoiling, Cutting, Punching
Invoicing	By actual weight
Delivery Time	7–15 days
Technique	Hot-dip Galvanized / Electro-galvanized
Port	Tianjin, Qingdao, or as required
Packaging	In bundles, in bulk, or customized packing
Key Application	Structural components, high-strength frames, roofing & wall systems, automotive structural parts, shelving systems
Note	G550 refers to minimum yield strength of 550 MPa. Material is suitable for structural applications requiring high strength and corrosion resistance.

Packing and shipping

Our company has passed ISO9001 quality management system certification, Our Mill product with CE/EN10204 / ASTM/Classification society certificate/CASO/BIS etc certificate.All the customers give good appreciation to our products.We are glad to be your good partner.

Application Areas

Steel is widely used in steel structure workshops, bridge frames, main structures of high-rise buildings, and infrastructure construction (such as highways, oil and gas pipelines). Its high strength properties ensure load-bearing stability and seismic performance. In ship manufacturing, steel is used to build hull structures, decks, and internal components. Hot-rolled coils rely on their load-bearing capacity to adapt to harsh environments. ‌

CUSTOMER FEEDBACK

Exporting our products to more than 100 countries and regions worldwide.All the customers give good appreciation to our products.We are glad to be your good partner. Warmly welcome you to visit our factory!

FACTORY WORKSHOP

Factory workshop

APPLICATION FIELD

Construction Project

Marine Exploration

Automobile Manufacturing

Architectural Engineering

Aerospace

Solar Energy

FAQ

Q: Do you support custo

A: Yes. We provide one-stop deep processing services, including slitting, flattening, cutting, bending, welding, polishing, drilling, hot-dip galvanizing and color coating. Custom sizes, special thicknesses and surface treatments are all acceptable.

Q: Can you provide third-party inspection reports?

A: Yes. We support SGS, BV, TUV and other third-party inspections. Each batch is equipped with official factory MTC mill test certificate, chemical composition and mechanical property reports.

Q: How to choose the right steel grade for my project?

A: Carbon steel is suitable for general structure and fluid transportation; galvanized/color coated steel for anti-rust building enclosure; stainless steel for corrosion-resistant, sanitary and marine environments. Our professional sales team can recommend the most cost-effective solution according to your usage scenario, temperature, corrosion environment and load requirements.

Q: What standards do your steel products comply with?

A: All products support international mainstream standards, including GB, ASTM, AISI, JIS, DIN, EN. Common grades such as Q235B, Q355B, 20#, 45#, 304, 316L, 430 are fully available and can meet global engineering and procurement standards.

Q: What steel products do you supply?

A: We provide a full range of steel materials, including carbon steel, stainless steel, galvanized steel, color coated steel, steel plates, steel coils, steel pipes and customized steel profiles. Products are widely used in construction, machinery, petrochemical, shipbuilding, automobile and engineering fields.

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