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G550 Galvanized pipe

G550 Galvanized Steel Pipe refers to high-strength structural pipes manufactured from G550 grade galvanized steel coils or sheets through forming and welding processes, followed by hot-dip galvanizing. The "G550" designation indicates the base material's minimum yield strength of 550 MPa, making it part of the ultra-high-strength galvanized steel series. This product combines exceptional mechanical properties with superior corrosion resistance, suitable for heavy-duty structural and engineering applications.

Classification :

Galvanized pipe

WhatsApp : +8615688862221

E-mail : QSsteel@tsingshanh.com

PRODUCT DETAILS

Item	Specification
Product	G550 Galvanized Structural Steel Pipe
Shape	Round, Square, Rectangular
Size / Diameter	20mm - 500mm OD (or 20x20mm - 400x400mm)
Wall Thickness	1.0mm - 12.0mm
Length	6m, 12m standard, or as required
Material Standard	Base Steel: G550 (ASTM A653 Grade 550)
Pipe Standard	ASTM A500 Grade C, EN 10219, or equivalent
Technique	Formed & Welded, then Hot-Dip Galvanized
Zinc Coating	Z60 - Z275 (60-275 g/m²) as required
Surface Treatment	Clean, blasting, and painting available upon request
Tolerance	Complies with relevant ASTM/EN standards
Export Packing	Waterproof paper, steel strip packed. Standard seaworthy package.

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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