Custom Galvanized Steel Coil - High-Quality Corrosion-Resistant Steel for Industrial Use

Baiqu Steel Coil Manufacturing Co., Ltd.

Verified Custom manufacturer · 4 yrs ·

China

Customizable Rock-bottom price

$685 1-49 ton Base price

$655 50-99 ton 4.4% off

$640 ≥100 ton 6.6% 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$ 685.00

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 Custom Galvanized Steel Coil

Property	Parameter	Description
Product Name	Custom Galvanized Steel Coil	Hot-dip or electro-galvanized carbon steel coil
Base Material	Q235B / SGCC / DX51D / CS Type B	Low-carbon steel substrate grades
Standard Compliance	ASTM A653, EN 10346, JIS G3302, GB/T 2518	Meets major international galvanizing standards
Galvanizing Method	Hot-Dip Galvanized (GI) / Electro-Galvanized (EG)	Coating process options available
Zinc Coating Weight	60 - 600 g/m² (Z60 - Z600)	Customizable coating thickness per requirement
Carbon (C)	≤0.12%	Low carbon for formability and weldability
Manganese (Mn)	≤0.60%	Enhances strength of base metal
Phosphorus (P)	≤0.045%	Controlled for ductility
Sulfur (S)	≤0.035%	Low sulfur for improved weldability
Tensile Strength	270 - 500 MPa	Varies by base material grade
Yield Strength	140 - 350 MPa	Minimum yield strength per grade
Elongation	≥18%	Ductility in 50mm gauge length
Thickness Range	0.12 - 4.0 mm	Custom thickness available per order
Width Range	600 - 1500 mm	Standard and custom widths supported
Coil Weight	3 - 25 tons	Adjustable per shipping and handling needs
Surface Finish	Regular Spangle / Zero Spangle / Skin-Pass / Chromate	Multiple surface treatment options
Application	Roofing, HVAC, Automotive, Appliances, Construction	Typical end-use industries
Certification	EN 10204 3.1, ISO 9001, SGS, BV	Quality certifications provided
Packaging	Eye-to-wall or eye-to-sky, waterproof paper, steel strip	Standard seaworthy export packaging
MOQ	5 tons	Minimum order quantity for custom orders

Custom Galvanized Steel Coil - High-Quality Corrosion-Resistant Steel for Industrial Use

Custom galvanized steel coil delivers exceptional anti-corrosion performance by applying a protective zinc layer to cold-rolled or hot-rolled steel substrates through hot-dip or electro-galvanizing processes. Engineered for demanding industrial environments, this product serves construction contractors, automotive manufacturers, HVAC fabricators, and agricultural equipment producers who require precise dimensions, tailored zinc coating weights, and reliable mechanical properties. Our mill-direct supply chain ensures factory-competitive pricing with full traceability on every coil shipped.

What Is Custom Galvanized Steel Coil?

Custom galvanized steel coil refers to flat-rolled carbon steel that has been coated with zinc—typically ranging from Z60 (60 g/m²) to Z275 (275 g/m²)—and produced to buyer-specified dimensions including thickness from 0.12 mm to 4.0 mm and width from 600 mm to 1,500 mm. The zinc layer forms a metallurgical bond with the base steel, creating a barrier that resists oxidation and extends service life by 20–50 years depending on environmental exposure conditions.

Custom Galvanized Steel Coil Technical Specifications

Our galvanized steel coils are manufactured in compliance with ASTM A653/A653M-20, EN 10346:2015, and JIS G3302 standards. The following table outlines key parameters:

Custom galvanized steel coil supplier

Parameter	Range / Value
Base Steel Grades	DX51D, DX52D, SGCC, CS Type B, SS Grade 33
Thickness	0.12 mm – 4.0 mm (±0.02 mm tolerance)
Width	600 mm – 1,500 mm
Zinc Coating	Z60 – Z275 (60–275 g/m² per ASTM A653)
Yield Strength	140 – 550 MPa (grade-dependent)
Spangle Options	Regular, minimized, zero spangle, skin-passed
Coil Weight	3 – 12 MT per coil
Surface Treatment	Chromate-free passivation, oiled, dry, or anti-fingerprint coating

Key Applications of Galvanized Steel Coil

Construction & Roofing: Corrugated roofing panels, purlins, wall cladding, and structural decking where long-term weather resistance is essential.
Automotive Components: Body panels, chassis reinforcements, and underbody shields requiring formability with superior corrosion protection.
HVAC & Ductwork: Air handling units, spiral ducts, and diffuser housings fabricated from custom-slit galvanized coil.
Agricultural Equipment: Grain bins, fencing posts, and irrigation channels exposed to moisture-rich environments.
Electrical Enclosures: Switchgear cabinets and cable trays demanding consistent surface finish and paintability.

Frequently Asked Questions

What is the minimum order quantity (MOQ) for custom galvanized steel coil?

Our standard MOQ starts at 25 metric tons per specification. For trial orders or specialty grades, we accommodate quantities as low as 10 MT subject to production scheduling.

Do you provide material test certificates?

Yes. Every shipment includes a Mill Test Certificate (MTC) per EN 10204 Type 3.1, covering chemical composition, mechanical properties, zinc coating mass, and dimensional verification.

What is the typical delivery time for custom orders?

Standard lead time ranges from 15 to 30 days after order confirmation, depending on coating weight, spangle type, and volume. Stock-size galvanized coils can ship within 5–7 business days.

Can you produce galvanized coil with custom zinc coating weights?

Absolutely. We offer differential coating options (e.g., Z100/Z60 per side) and precise coating weight control from 60 g/m² to 275 g/m² to match your specific corrosion protection and forming requirements.

Custom galvanized steel coil wholesale

Get a Competitive Quote for Custom Galvanized Steel Coil

Ready to source premium-grade galvanized steel coil tailored to your project specifications? Contact our technical sales team today with your required thickness, width, zinc coating weight, and annual volume. We provide detailed quotations within 24 hours, complete with logistics planning and certification documentation for your region.

Custom galvanized steel coil China

Ratings & Reviews

4.5

Based on 8 reviews

5 5

4 2

3 1

2 0

1 0

Wei Chen

Singapore

2025-02-21

Acceptable Galvanized Coil Quality — Packaging Issue Resolved

Ordered 25 MT of galvanized coil, 0.5mm thickness, Z60 coating, 600mm width for re-export to regional buyers. Material quality itself was acceptable — coating mass and mechanical properties matched the MTC values. However, two coils in the shipment arrived with edge damage from insufficient waterproof wrapping during ocean freight, resulting in surface rust on the outer wraps of those coils. We reported the issue with photos within 24 hours of receipt. The supplier acknowledged responsibility, issued a credit note covering approximately 1.2 MT of affected material, and updated the packaging specification for future orders. Resolution was handled professionally and without dispute. The underlying product quality is solid; we just needed the logistics handling to match. Will order again with the revised packaging confirmed in writing.

Chris Martin

Canada

2025-03-13

Perfect Galvanized Coil Specifications for Automotive Stamping Line

We run a stamping operation supplying underbody shields and chassis brackets to Tier 1 automotive assemblers. Ordered 45 MT of DX52D, 0.9mm thickness, 1,500mm width, Z100 coating with skin-passed surface and dry finish. The skin-passed treatment was essential for our deep-draw tooling — no stretcher strain marks observed across the entire coil run, which was a consistent problem with our previous supplier's material. MTC data showed r-bar value at 1.72, sufficient for our forming depth requirements. Dimensional consistency across all eight coils in the shipment was within ±0.018mm on thickness — better than the stated ±0.02mm tolerance. Received quotation within 20 hours of inquiry submission. This is our third order in eight months and quality has been consistent throughout.

William Taylor

Australia

2025-04-06

Reliable Galvanized Coil for Marine Infrastructure Components

Purchased 22 MT of galvanized coil, 2.0mm thickness, 900mm width, Z200 coating for fabricating irrigation channel liners and marine jetty components in Queensland. Material performed well in our salt-spray pre-qualification testing — no red rust at 500 hours, consistent with the Z200 coating weight. The 10 MT trial order MOQ was helpful for our initial qualification process before committing to full volume. Lead time on the trial was 16 days. One note: the coil ID size needed confirmation before shipping as our uncoiler requires a specific mandrel fit — the team accommodated our 508mm ID requirement without additional charge. Would have preferred a slightly faster response on that technical query, but overall the order executed smoothly. Planning to increase volume in the next order.