GI / HDG
Galvanized steel strip
Hot-dip galvanized steel strip for bending, punching and forming, with customized slitting and coil weights.
- Thickness: 0.5–6.0 mm
- Width: 100–850 mm*
- Zinc coating weight: 30–500 g/m²
2006Manufacturing foundation
2 million tonsAnnual production capacity
6 / 5 / 5Pickling / rolling / galvanizing lines
Custom slit widthsCoils prepared to agreed specifications
01 / THE MATERIAL
Our coated steel
products.
Galvanized Steel Strip and Zn-Al-Mg Coated Steel Coils
ZAM / Zn-Al-Mg
Zn-Al-Mg coated steel coils
Zn-Al-Mg coated steel coils for applications requiring corrosion resistance and formability.
- Thickness: 0.5–4.0 mm
- Width: 78–1,219 mm
- Coating weight: 80–275 g/m²
- Salt spray resistance: 1,800–2,000 hours
* Up to 1,250 mm on our new line from December 2026. Complete specification combinations are subject to confirmation.
02 / OUR FOUNDATION
Built on Tongda.
Connected through Liangang.
Hebei Liangang Metal Products Co., Ltd. is part of Tongda, a steel manufacturer founded in 2006. Tongda makes our galvanized steel strip and zinc-aluminum-magnesium (Zn-Al-Mg) coated steel coils in Hebei, China. Founded in 2026, we handle Tongda's international sales and exports. We supply manufacturers, processors and distributors with coated steel made to their specifications.
We pickle, cold roll, galvanize and slit in our own factory. Six pickling lines, five rolling lines and five galvanizing lines give us an annual production capacity of 2 million tons. Six warehouses for raw materials and finished coils support storage and order preparation.
03 / FACTORY CAPABILITY
Our factory,
in numbers.
Tongda manufacturing experience, since 2006. From raw material preparation to finished coils. Manufactured, checked and prepared in-house.
Inside Tongda — our facilities, steel coils and production lines. Silent film.
20+Years of Experience
2,000,000TonsAnnual Galvanized Steel Strip Capacity
2,000,000TonsAnnual Pickled Steel Output
100,000m²Factory Area
04 / END-TO-END MANUFACTURING
From pickling
to shipping.
Our factory combines pickling, cold rolling, galvanizing and slitting.
- 01
Pickling
Scale removal
Prepared surface
- 02
Cold rolling
Thickness control
Target thickness and shape
- 03
Galvanizing
Metal coating
Protected surface
- 04
Slitting
Cutting to width
Widths to your order
- 05
Shipping
Export packaging
Shipped on agreed terms
05 / WHO WE SUPPLY
For the way
you work with steel.
Different production and purchasing needs. One conversation about the right material.
Manufacturers
Tubes and profiles · Roofing and framing · Stamped parts
- Your process:
- Choose grades for roll-forming, bending and fabrication.
- Steady production:
- Set clear requirements for thickness, coating, coil weight and width.
- Repeat orders:
- Discuss regular supply based on your main specifications and monthly use.
Processors & distributors
Master coils · Slit widths · Planned restocking
- Popular sizes:
- Build your stock around the grades and sizes your customers order.
- Slitting options:
- Discuss buying master coils to slit locally, or coils already slit to width.
- Restocking:
- Plan purchase lots around your customers' demand and your stock cycle.
06 / QUALITY ASSURANCE
Quality you can
look into.
In-process inspections and laboratory testing check dimensions, coating characteristics and surface quality against agreed requirements. Inspection and testing requirements are confirmed with your order.
Our free samples are supported by coating thickness, composition and surface quality testing. Send us your application or specification to request one.
Discuss testing and samplesInside the Tongda laboratory
07 / WHY HBLG STEEL
From pickling to slitting.
One manufacturer.
From pickling to slitting, one manufacturer.
Capacity for ongoing purchases
Our factory has an annual production capacity of 2 million tons and four finished-product warehouses. We coordinate specifications, quantities and delivery schedules for repeat purchases. A customer who has reordered several times tells us our deliveries arrive on time.
An integrated manufacturing chain
Our factory combines pickling, cold rolling, galvanizing and slitting. Work directly with one manufacturer to coordinate your material and processing requirements.
Specifications matched to production
Specify your required thickness, width, coating weight and coil weight. We confirm available combinations and prepare slit widths to suit your production requirements.
Checks against agreed specifications
In-process inspections and laboratory testing check dimensions, coating characteristics and surface quality against agreed requirements. Inspection and testing requirements are confirmed with your order.
Less waste, smoother processing
Customers who bend, stamp and punch our galvanized strip, including cable tray makers, tell us processing runs smoothly: slit edges are free of burrs, tolerances are well controlled and the zinc coating stays on during bending. They also report lower material loss in their workshops.
Samples before a bulk order
Free material samples let you assess suitability before bulk purchasing. We confirm sample specifications, testing arrangements and shipping costs with you.
08 / CUSTOMER FEEDBACK
In our customers’
own words.
Feedback from galvanized steel strip customers and manufacturers.
Even coating, smooth processing
“The galvanized strip has a flat surface and an even zinc coating. The zinc does not come off during bending or stamping, processing runs smoothly, and the rust protection is consistent. We feel confident about our long-term cooperation.”
Accurate slitting, less scrap
“The slit widths are accurate, the coils are neatly wound, and the edges have no burrs. We get little scrap when cutting, which has greatly reduced material loss in our workshop.”
Consistent material, on-time delivery
“The material is consistent and tolerances are well controlled. Deliveries arrive on time, and the packaging protects the coils well. We have reordered several times.”
Clean bends for cable trays
“This galvanized strip for cable trays bends and forms well. The bent corners do not crack or lose zinc, and the surface is flat. Our finished trough cable trays look good, the zinc coating is stable, and the material suits extra-low-voltage (ELV) system projects in factory buildings.”
09 / COMMON QUESTIONS
A few questions,
before we begin.
Answers about product selection, quality and orders.
Ask our teamWill your material suit my production requirements?
We supply galvanized steel strip and Zn-Al-Mg coated steel coils for bending, punching and forming. Our customers use them in construction, prefabricated buildings, infrastructure, automotive parts, home appliances, hardware, agricultural and livestock equipment, and general manufacturing. Suitability depends on the grade, dimensions, coating, tooling and processing requirements. Send your specification for review; we can arrange material samples for your evaluation.
Should I choose galvanized strip or Zn-Al-Mg coils?
Galvanized steel strip offers zinc coatings of 30–500 g/m² and thicknesses up to 6.0 mm. Zinc-aluminum-magnesium (Zn-Al-Mg) coated steel coils, typically coated with zinc, 6% aluminum and 3% magnesium, are for applications that need corrosion resistance and formability. Send us your end product, processing method, required strength and service environment. Our technical team will then suggest the product, grade, thickness and coating weight.
What dimensions and coating weights are available?
• Galvanized steel strip: thickness 0.5–6.0 mm, width 100–850 mm (up to 1,250 mm on our new line from December 2026) and zinc coating weight 30–500 g/m².
• Zn-Al-Mg coated steel coils: thickness 0.5–4.0 mm, width 78–1,219 mm and coating weight 80–275 g/m².
Complete specification combinations are subject to confirmation.
Which steel grades and standards can you supply?
For galvanized steel strip, available grades include SGCC, DX51D, DX52D, DX53D, S350GD+Z and S550GD+Z. We produce galvanized strip to EN 10346, GB/T 2518 or JIS G3302, and Zn-Al-Mg coils to JIS G3323, ASTM A1046/A1046M or YB/T 4761. For Zn-Al-Mg coils, please specify the grade you require. Send the standard and grade with your inquiry so we can confirm suitable options.
Can I evaluate samples before ordering?
Yes. We provide free material samples to help you assess quality and suitability before bulk purchasing. Sample specifications, testing arrangements and shipping costs are confirmed with our team.
LET'S WORK TO YOUR SPECIFICATION
Try a free sample.
Start a considered order.
Send us your application or your usual grades, sizes and expected quantities, and we will discuss a free sample, supply and slitting options with you.
Email your specificationsSpeak with Elijah Qi
Sales Director
- elijah@hebeiliangang.com
- +86 136 2316 8107Mobile / WhatsApp
- Hebei, China