We offer a full range of carbon steel products, from pipes to plates, coils to profiles, to meet the needs of your diverse projects.
Galvanized steel pipes are made from a metallic steel pipe with a zinc coating formed on the surface through hot-dip galvanizing or electroplating. Combining the high strength of steel with the excellent corrosion resistance of the zinc coating, they are widely used in construction, energy, transportation, and machinery manufacturing. Their core advantage lies in the fact that the zinc coating isolates the base material from corrosive media through electrochemical protection, significantly extending the pipe's service life while preserving the steel's mechanical properties to meet the structural load-bearing requirements of various scenarios.
Galvanized Round Steel Pipe
Cross-sectional Characteristics: Circular cross-section offers low fluid resistance and uniform pressure resistance, making it suitable for fluid transportation and structural support.
Common Materials:
Base Material: Carbon steel (such as Q235 and Q235B, moderate strength and cost-effective), low-alloy steel (such as Q345B, high strength, suitable for heavy-duty applications); stainless steel base materials (such as galvanized 304 stainless steel, offering both acid and alkali resistance and aesthetics) are available for special applications.
Galvanized Layer Materials: Pure zinc (hot-dip galvanizing with a zinc content of ≥98%, a zinc layer thickness of 55-85μm, and a corrosion protection period of 15-30 years), zinc alloy (electroplated zinc with a small amount of aluminum/nickel, a thickness of 5-15μm, suitable for light-duty indoor corrosion protection).
Common Sizes:
Outer Diameter: DN15 (1/2 inch, 18mm) to DN1200 (48 inches, 1220mm), Wall Thickness: 0.8mm (thin-wall decorative pipe) to 12mm (thick-wall structural pipe).
Applicable Standards: GB/T 3091 (for water and gas transportation), GB/T 13793 (straight seam electric-welded steel pipe), ASTM A53 (for pressure piping).
Galvanized Steel Square Tube
Cross-sectional Characteristics: Square cross-section (side length a×a), strong torsional rigidity, and easy planar connection, commonly used in frame structures.
Common Materials:
The base is primarily Q235B (meets the load-bearing requirements of most buildings), with Q345B and Q355B (higher yield strength, suitable for earthquake-resistant structures) available for high-end applications.
The galvanizing process is primarily hot-dip galvanizing (for outdoor use), while electrogalvanizing is often used for indoor decorative guardrails.
Common Sizes:
Side Length: 20×20mm (small shelves) to 600×600mm (heavy steel structures), wall thickness: 1.5mm (thin-wall furniture tube) to 20mm (bridge support tube).
Length: 6 meters, custom lengths of 4-12 meters are available. Special projects require advance reservation.
Galvanized Steel Rectangular Tube
Cross-sectional Characteristics: Rectangular cross-section (side length a×b, a≠b), with the long side emphasizing bending resistance and the short side conserving material. Suitable for flexible layouts.
Common Materials:
The base material is the same as the square tube, with Q235B accounting for over 70%. Low-alloy materials are used for special load scenarios.
The galvanizing thickness is adjusted according to the operating environment. For example, hot-dip galvanizing in coastal areas requires ≥85μm.
Common Sizes:
Side Length: 20×40mm (small equipment bracket) to 400×800mm (industrial plant purlins). Wall Thickness: 2mm (light load) to 25mm (extra thick wall, such as port machinery).
Dimensional Tolerance: Side Length Error: ±0.5mm (high-precision tube) to ±1.5mm (standard tube). Wall Thickness Error: Within ±5%.
We offer a full range of carbon steel products, from pipes to plates, coils to profiles, to meet the needs of your diverse projects.
OUR STEEL COILS
Galvanized steel coil is a metal coil made by hot-dip galvanizing or electroplating cold-rolled steel sheets, depositing a layer of zinc on the surface.
Zinc Coating Thickness: Hot-dip galvanized coil typically has a zinc coating thickness of 50-275 g/m², while electroplated coil typically has a zinc coating thickness of 8-70 g/m².
The thicker zinc coating of hot-dip galvanizing provides longer-lasting protection, making it suitable for buildings and outdoor applications with stringent corrosion protection requirements.
Electroplated zinc coatings are thinner and more uniform, and are commonly used in automotive and appliance parts requiring high surface precision and coating quality.
Zinc Flake Patterns: Large, Small, or No Spangles.
Widths: Commonly available: 700 mm to 1830 mm, meeting the processing needs of various industries and product specifications.
Galvalume steel coil is a metal coil made from a cold-rolled steel substrate, coated with an alloy layer composed of 55% aluminum, 43.4% zinc, and 1.6% silicon via a continuous hot-dip galvanizing process.
Its corrosion resistance is 2-6 times that of ordinary galvanized coil, and its high-temperature resistance is outstanding, allowing it to withstand long-term use at 300°C without significant oxidation.
The alloy layer thickness is typically 100-150g/㎡, and the surface exhibits a distinctive silver-gray metallic luster.
Surface conditions include: normal surface (no special treatment), oiled surface (to prevent white rust during transportation and storage), and passivated surface (to enhance corrosion resistance).
Widths: Commonly available: 700mm - 1830mm.
Color-coated coil is a novel composite material made from a galvanized or galvanized steel coil substrate, coated with one or more layers of organic coatings (such as polyester, silicone-modified polyester, or fluorocarbon resin) via roller coating or spraying.
Color-coated coil offers two advantages: 1. It inherits the corrosion resistance of the substrate, resisting erosion by moisture, acidic and alkaline environments, and 2. The organic coating provides a rich variety of colors, textures, and decorative effects, while also offering wear resistance, weather resistance, and stain resistance, extending the service life of the sheet.
The coating structure of color-coated coil is generally divided into a primer and a topcoat. Some high-end products also have a backcoat. The total coating thickness typically ranges from 15 to 35μm.
Width: Common widths range from 700 to 1830mm, but customization is possible. The substrate thickness typically ranges from 0.15 to 2.0mm, adapting to different load-bearing and forming requirements.
We offer a full range of carbon steel products, from pipes to plates, coils to profiles, to meet the needs of your diverse projects.
Galvanized steel sheets are coated using two methods: hot-dip galvanizing and electrogalvanizing.
Hot-dip galvanizing involves immersing metal products in molten zinc, depositing a relatively thick zinc layer on their surface. This layer typically exceeds 35 microns and can reach up to 200 microns. It is widely used in construction, transportation, and power generation, including in metal structures like transmission towers and bridges.
Electrogalvanizing uses electrolysis to form a uniform, dense, and well-bonded zinc coating on the surface of metal parts. The layer is relatively thin, approximately 5-15 microns, resulting in a smooth and even surface. Electrogalvanizing is commonly used in the manufacture of automotive and appliance parts, where coating performance and surface finish are crucial.
Galvanized sheet thickness typically ranges from 0.15 to 3.0 mm, and widths typically range from 700 to 1500 mm, with custom lengths available.
Galvanized sheet is widely used in the construction industry for roofs, walls, ventilation ducts, household hardware, automobile manufacturing, and home appliance production. It is an indispensable basic protective material for both industrial and residential applications.
OUR STEEL PLATES
Galvanized Steel Sheet
Cold-Rolled Galvanized Steel Sheet (CRGI)
Common Grade: SPCC (Japanese JIS Standard), DC01 (EU EN Standard), ST12 (Chinese GB/T Standard)
High-Strength Galvanized Steel Sheet
Low-Alloy High-Strength: Q355ND (GB/T), S420MC (EN, for cold forming).
Advanced High-Strength Steel (AHSS): DP590 (duplex steel), TRIP780 (transformation-induced plasticity steel).
Fingerprint-Resistant Galvanized Steel Sheet
Material Features: Based on electrogalvanized (EG) or hot-dip galvanized (GI) steel, this sheet is coated with a "fingerprint-resistant coating" (a transparent organic film, such as acrylate) to resist fingerprints and oil stains while retaining the original gloss and making it easy to clean.
Applications: Home appliance panels (washing machine control panels, refrigerator doors), furniture hardware (drawer slides, cabinet door handles), and electronic device casings (printers, server chassis).
Roofing Sheet
Galvanized corrugated sheet is a common metal sheet made from galvanized steel sheets that are cold-bent into various corrugated shapes through roller pressing.
Cold-rolled corrugated sheet: SPCC, SPCD, SPCE (GB/T 711)
Galvanized corrugated sheet: SGCC, DX51D+Z, DX52D+Z (GB/T 2518)
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Galvanized Steel H-beams
These have an "H"-shaped cross section, wide flanges with uniform thickness, and offer high strength. They are suitable for large steel structures (such as factories and bridges).
We offer H-beam products covering mainstream standards, including the Chinese National Standard (GB), the US ASTM/AISC standards, the EU EN standards, and the Japanese JIS standards. Whether it's the clearly defined HW/HM/HN series of the GB, the unique W-shapes wide-flange steel of the American standard, the harmonized EN 10034 specifications of the European standard, or the Japanese standard's precise adaptation to architectural and mechanical structures, we offer comprehensive coverage, from materials (such as Q235/A36/S235JR/SS400) to cross-sectional parameters.
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Galvanized Steel U Channel
These have a grooved cross section and are available in standard and lightweight versions. They are commonly used for building supports and machinery bases.
We offer a wide range of U-channel steel products, including those complying with China's national standard (GB), the US ASTM standard, the EU EN standard, and the Japanese JIS standard. These products come in various sizes, including waist height, leg width, and waist thickness, and are made of materials such as Q235, A36, S235JR, and SS400. They are widely used in steel structure framing, industrial equipment support, vehicle manufacturing, and architectural curtain walls.
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Galvanized Steel Angle Bar
These come in equal-leg angles (two sides of equal length) and unequal-leg angles (two sides of unequal length). They are used for structural connections and brackets.
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Galvanized Steel Wire
Galvanized steel wire is a type of carbon steel wire coated with zinc. It offers excellent corrosion resistance and mechanical properties, making it widely used in a variety of applications. It's primarily used in greenhouses, farms, cotton baling, and in the manufacture of springs and wire ropes. It's also suitable for use in harsh environmental conditions, such as cable-stayed bridge cables and sewage tanks. It also has widespread applications in architecture, handicrafts, wire mesh, highway guardrails, and product packaging.
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