Chinese Galvanized Steel - Mill Direct Manufacturers

Zhonghe Building Materials Co., Ltd.

Verified Custom manufacturer · 3 yrs ·

China

Chinese Galvanized Steel Exporters and Manufacturers

Customizable Rock-bottom price

$571 1-49 ton Base price

$546 50-99 ton 4.4% off

$533 ≥100 ton 6.7% off

Price validity: subject to market conditions

Supplier's customization ability

Drawing-based customization
Sample-based customization
Full customization

Quantity

Minimum order quantity: 1 ton

Shipping total: To be negotiated

Subtotal of goods US$ 571.00

Start order request

Payment and delivery

Payment:: by contract — deposit, balance after your inspection
Lead time:: confirmed with the quotation
Packaging:: standard export packing
Samples:: available on request

Product details

Technical Specifications of Chinese Galvanized Steel Exporters and Manufacturers

Property	Parameter	Description
Product Name	Galvanized Steel	Hot-dip galvanized and electro-galvanized steel products manufactured and exported by Chinese mills
Material Grade	DX51D / SGCC / S250GD / S350GD	Equivalent to ASTM A653 CS/FS/SS, EN 10346, JIS G3302 grades; common Chinese GB/T 2518 grades
Standard Compliance	GB/T 2518, ASTM A653/A924, EN 10346, JIS G3302	Products comply with major international standards for hot-dip zinc-coated steel sheet and strip
Chemical Composition (C)	≤ 0.12%	Low carbon content ensures good formability and weldability
Chemical Composition (Mn)	≤ 0.60%	Manganese content controlled for structural integrity
Chemical Composition (P / S)	P ≤ 0.045% / S ≤ 0.045%	Phosphorus and sulfur limits per GB/T 2518 and EN 10346
Tensile Strength	270–560 MPa	Varies by grade; e.g., DX51D ≥ 270 MPa, S350GD ≥ 420 MPa per EN 10346
Yield Strength	140–420 MPa	S250GD ≥ 250 MPa, S350GD ≥ 350 MPa; structural grades per EN 10346 / ASTM A653
Elongation	≥ 16–22%	Minimum elongation (A80) depending on grade and thickness; ensures forming performance
Zinc Coating Weight	Z60–Z275 (g/m²) / G30–G90 (oz/ft²)	Both sides combined; Z275 (275 g/m²) most common for construction; per EN 10346 / ASTM A653
Thickness Range	0.12–6.0 mm	Standard commercial thickness; custom gauges available upon request
Width Range	600–1,500 mm	Coil and sheet widths; slit coil widths available from 20 mm
Surface Finish	Regular Spangle / Minimized Spangle / Zero Spangle / Skin-passed	Options include chromate passivation, oiled or dry surface treatment for corrosion protection
Application	Construction, Automotive, Appliances, Agriculture, HVAC	Roofing, wall cladding, purlins, automotive panels, white goods, pipes, and structural components
Certification	ISO 9001, SGS, BV, Mill Test Certificate (MTC)	Third-party inspection available; MTC per EN 10204 3.1 provided with each shipment
Packaging	Coil / Sheet / Slit Coil	Inner eye-to-sky or eye-to-wall; waterproof paper + steel strip bundling; export seaworthy packaging
MOQ	25 MT per order	Minimum order quantity for standard grades; mixed grades accepted for full container load (FCL)

Chinese Galvanized Steel - Mill Direct Manufacturers

Chinese galvanized steel exporters and manufacturers have established a commanding presence in the global flat steel market, supplying construction firms, automotive assemblers, and industrial fabricators across more than 100 countries. China's vertically integrated steel mills combine large-scale blast furnace capacity with state-of-the-art continuous hot-dip galvanizing lines, enabling them to deliver zinc-coated sheet and coil products at mill-direct rates that independent service centers simply cannot match. With annual galvanized steel output exceeding 80 million metric tons, Chinese producers maintain consistent inventory of hot-dip galvanized (HDG) coils, electro-galvanized sheets, and galvanized corrugated roofing panels in a broad range of thicknesses and coating weights. Rigorous quality management systems—certified to ISO 9001, ISO 14001, and SGS inspection standards—ensure every shipment meets or exceeds international benchmarks such as ASTM A653, EN 10346, and JIS G 3302. Whether your project demands structural-grade material or deep-drawing quality strip, partnering with a reputable Chinese galvanized steel manufacturer offers the dual advantage of superior quality and cost-effective sourcing.

Chinese Galvanized Steel Exporters and Manufacturers supplier

What is Chinese Galvanized Steel?

Chinese galvanized steel refers to carbon steel substrate—typically cold-rolled coil produced at integrated mills in Hebei, Jiangsu, or Shandong provinces—coated with a protective zinc layer through hot-dip or electrolytic processes. The zinc metallurgically bonds to the steel surface, forming a barrier that delivers outstanding anti-corrosion properties and extends service life to 25–50 years in moderate environments, making it indispensable in roofing, cladding, automotive body panels, and electrical conduit applications worldwide.

Chinese Galvanized Steel Exporters and Manufacturers factory

Chinese Galvanized Steel Manufacturing Process

Production begins with pickling and cold-rolling hot-rolled coil to achieve precise gauge tolerances of ±0.02 mm. The strip then enters a continuous annealing furnace, where it is recrystallized before being immersed in a molten zinc bath maintained at approximately 450 °C. An air-knife wiping system controls coating weight to within ±5 g/m², followed by skin-pass rolling that refines surface finish to G90 (275 g/m²) or G60 (180 g/m²) designations per ASTM A653. Passivation and oiling treatments complete the line before coil slitting and packaging for export.

Chinese Galvanized Steel Technical Specifications

Standard product parameters from leading Chinese galvanized steel exporters and manufacturers include: thickness range 0.12–6.0 mm; coil width 600–1,550 mm; zinc coating weight Z60–Z275 (60–275 g/m²) per EN 10346 or G30–G90 per ASTM A653; yield strength 140–550 MPa depending on grade (DX51D through DX57D / CS-A through HS); tensile strength 270–560 MPa minimum; elongation ≥22% for forming grades; surface finish options including zero-spangle, regular-spangle, and skin-passed; and coil inner diameter 508 mm or 610 mm with maximum coil weight 25 MT.

Get a Competitive Quote for Chinese Galvanized Steel

Ready to reduce your material costs without compromising quality? Our team connects buyers directly with certified Chinese galvanized steel manufacturers, eliminating intermediary markups and ensuring full traceability from mill certificate to port of discharge. Share your specifications today and receive a detailed, itemized quotation within 24 hours.

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Chinese Galvanized Steel Exporters and Manufacturers wholesale

Ratings & Reviews

4.5

Based on 8 reviews

5 5

4 2

3 1

2 0

1 0

Robert Simmons

United States

2025-01-03

Initial surface finish issue — resolved professionally

Our first shipment of 50 MT of 0.45 mm G60 skin-passed coil had visible oil streaking on approximately 8% of coils, which was flagged by our customer. I raised the issue immediately and the supplier responded within 24 hours, arranged a third-party inspection, confirmed the cause was an oiling-system calibration issue, and issued a partial credit plus replacement coils within 18 days. Second shipment was perfect — uniform finish, coating weight on spec. The after-sales response was professional and transparent. Upgraded to a regular account since then.

Ahmed Al-Rashidi

UAE

2025-01-25

Competitive pricing on Z275 coil for Gulf climate applications

Ordered 120 MT of 0.7 mm Z275 HDG coil for roofing in a high-humidity coastal project near Abu Dhabi. Coating weight averaged 282 g/m², slightly above nominal — beneficial for our environment. Mechanical properties met EN 10346 DX52D requirements. Delivery to Jebel Ali was 35 days, acceptable but slightly longer than the 30 days initially indicated. Price was 9% below regional distributors for the same specification. Overall a strong value proposition; we'd rate it five stars if lead time accuracy improves.

Fiona Whitmore

United Kingdom

2025-02-16

Good value Z180 coil, minor documentation delay on first order

Purchased 75 MT of 1.2 mm Z180 per EN 10346 for industrial shed framing. Material quality was solid — tensile strength tested at 340 MPa, well above minimum. Coating adhesion passed our bend test. The only issue was that the full documentation pack arrived three days after the goods, which delayed our customs clearance slightly. The team resolved it quickly and confirmed improved procedures for future orders. Pricing was genuinely competitive versus UK service centers. Would order again with the documentation issue now addressed.

Know your supplier

Zhonghe Building Materials Co., Ltd.

3 yrs on Sinoali.com

Located in China

Company information More goods

FAQ

Q: What is the zinc coating weight of your galvanized steel?

A: Common zinc coating includes Z60, Z80, Z100, Z120, Z180, Z275, and we can also provide custom coating as required.

Q: What types of galvanized steel do you supply for construction?

Q: What is the difference between GI and PPGI?

Q: Do you offer customized sizes and lengths?

Q: How do you package galvanized steel to prevent rust during shipment?

Q: Can you provide mill test certificates (MTC) for galvanized steel?

Product display

Zhonghe Building Materials Co., Ltd. is a professional industrial manufacturer and supplier focusing on high-quality building materials. We specialize in a full range of steel building materials, covering reinforcing steel bars, galvanized steel products, corrugated steel sheets, structural steel pipes and other related metal construction materials.

Equipped with advanced production lines and precision testing equipment, the company implements strict full-process quality control and holds authoritative industry qualification certificates. We maintain sufficient spot inventory, adopt standardized export packaging, and ensure stable delivery cycles to meet global customer demands.

Our products are widely applied in construction engineering, machinery manufacturing, shipbuilding, energy and infrastructure projects. Adhering to the principle of quality first and customer-oriented service, we are committed to providing reliable building material solutions and long-term stable cooperation for global clients.