Q235 Galvanized Steel Coil
- Alloy or Not: Non-alloy
- Technique: Hot Rolled, Cold Rolled
- Thickness: 0.12-6.0 mm, or as requested
- Width: 600-1500 mm, or as requested
- Weight: 3-20 tons
- Galvanization: Hot-dip Galvanizing, Electro-Galvanizing, Pre-Galvanizing
- Processing Service: Shearing, Flattening, Cut-to-Length, Coiling, Bending, etc.
- Certification: ISO 9001, CE
- Inspection: SGS, TUV, Factory Inspection
- Origin: Hubei/Henan/Jiangsu, China
- Port: Qingdao, Tianjin, Lianyungang
- MOQ: 5 tons (or as per negotiation)
- Delivery Time: 8-14 Days
- Payment: T/T, L/C
Product Detail
Q235 galvanized steel coil is a great choice if you’re looking for a durable, versatile material. It’s a strong carbon steel that’s coated with zinc to help prevent rust, so it’s perfect for projects that need to withstand the elements.
You’ll often see it used in construction for things like roofing and wall panels or even in the automotive industry for car parts. It’s also easy to work with—it can be cut, bent, and shaped to fit your needs.
Also, the zinc coating gives it a clean, polished look, making it suitable for both indoor and outdoor use. Whether you’re working on a big building project or something smaller, this material is designed to last.
Contact us if you are unfamiliar with this product or have questions unsolved.
Features
Q235 galvanized steel coils could bring the following benefits to your project:
- Excellent Rust Protection – Strong resistance to corrosion, great for outdoor and long-term use.
- Strong and Durable – Built to handle heavy-duty applications with ease.
- Cost-Effective – Quality material that offers good value for the price.
- Low Maintenance – Minimal upkeep needed, saving time and cost over the years.
- Easy to Weld – Highly workable, making it flexible for different projects.
- Good Formability – Easily shaped and molded to suit various designs.
- Consistent Coating – Even zinc layer for reliable, long-lasting performance.
- Clean, Professional Look – Smooth, attractive finish for visible applications.
Applications
Construction
Building frameworks, roofing sheets, scaffolding, guardrails, etc.
Automotive
Car bodies, chassis components, bumpers, exhaust systems, etc.
Electrical Equipment
Cable trays, distribution boxes, electrical enclosures, transformer parts, etc.
Marine
Ship hulls, cargo holds, dock structures, offshore platforms, etc.
HVAC
Air ducts, ventilation systems, furnace housings, industrial chimneys, etc.
Furniture
Shelving units, bed frames, office furniture, garden furniture, etc.
Product Parameters
| Parameter | Details |
|---|---|
| Standard | GB/T 700-2006, GB/T 2518-2019, GB/T 3274-2017, GB/T 709-2019, GB/T 1839-2008, GB/T 2975-2018, GB/T 5027-2016, GB/T 5028-2016, GB/T 2970-2016, GB/T 11170-2008, etc. |
| Grade | Q235A, Q235B, Q235C, Q235D |
| Deoxidation Method | F (Rimmed), Z (Killed), TZ (Special Killed) |
| Thickness | 0.12-6.0 mm, or as requested |
| Width | 600-1500 mm, or as requested; Standard 1000 mm, 1550 mm, 1500mm |
| Coil ID | 508-610 mm |
| Coil Weight | 3-20 metric tons per coil |
| Tolerance | ±1%, or as requested |
| Galvanization | Hot-Dip Galvanizing, Electro-Galvanizing, Pre-Galvanizing |
| Zinc Coating | Z30-600 g/m² |
| Surface Structure | Regular spangle, Minimized spangle, Zero spangle, Big spangle |
| Surface Treatment | 1) Skin Pass, Sand Blasted 2) Pre-painted 3) Galvanized 4) Oiled 5) Passivated 6) PE, PVDF, or other anti-corrosive coatings 7) As requested |
| Condition of Delivery | +HR/+CR/+A/+O/+UPK, or as requested |
| Testing Method | CCA/MPT/CST/SST/MA/NDT, etc. |
| Application | Building frameworks, roofing sheets, scaffolding, guardrails, car bodies, chassis components, cable trays, distribution boxes, electrical enclosures, ship hulls, dock structures, air ducts, ventilation systems, shelving units, office furniture, etc. |
| Certification | Approved by ISO 9001 |
| Packaging | Standard seaworthy packing, or as requested |
*Condition of Delivery: HR – Hot Rolled, CR – Cold Rolled, A – Annealed, O – Oiled, UPK – Unpickled
*Testing Method: CCA – Chemical Composition Analysis, MPT – Mechanical Properties Testing, CST – Coating Surface Testing, SST – Salt Spray Testing, MA – Metallographic Analysis, NDT – Non-Destructive Testing
Material Specifications
Chemical Composition
| Steel Grade | Quality Grade | C % (≤) | Si % (≤) | Mn % (≤) | P % (≤) | S % (≤) |
|---|---|---|---|---|---|---|
| Q235 | Q235A | 0.22 | 0.35 | 1.4 | 0.045 | 0.05 |
| Q235 | Q235B | 0.2 | 0.35 | 1.4 | 0.045 | 0.045 |
| Q235 | Q235C | 0.17 | 0.35 | 1.4 | 0.04 | 0.04 |
| Q235 | Q235D | 0.17 | 0.35 | 1.4 | 0.035 | 0.035 |
*According to GB/T 700-2006.
Mechanical Properties
| Thickness (mm) | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Impact Absorbed Energy KV2 (J) |
|---|---|---|---|---|
| ≤16 | 370-500 | ≥235 | ≥26 | ≥27 |
| >16 ~ 40 | 370-500 | ≥225 | ||
| >40 ~ 60 | 370-500 | ≥215 | ≥25 | |
| >60 ~ 100 | 370-500 | ≥215 | ≥24 | |
| >100 ~ 150 | 370-500 | ≥195 | ≥22 | |
| >150 ~ 200 | 370-500 | ≥185 | ≥21 |
*According to GB/T 700-2006. Test temperatures of Impact Absorbed Eenergy are 20℃, 0℃, -20℃.
Why Choose Us
Consistent Quality
We address your primary quality concerns with q235 galvanized steel coils — such as coating uniformity, potential missed spots, and coating adhesion — through continuous hot-dip galvanizing processes & strict control of temperature and timing, non-destructive thickness testing with magnetic gauges, and multi-step-pre-treatment, including acid cleaning and surface preparation, to ensure consistent performance, corrosion resistance, and long-lasting durability across various environments.
Precise Dimensions
We guarantee the dimensional accuracy of our q235 galvanized steel coils, maintaining tight tolerances within ±0.01 mm through precision equipment and ISO 9001-certified processes. Every batch undergoes 100% inspection, with zero deviation complaints in the past 5 years. We ensure smooth project execution without installation delays.
Stable Supply
We have 3 factories with a combined annual capacity of over 500,000 tons. In the event of any unforeseen circumstances, we can coordinate across factories to ensure stable production and on-time delivery.
Stable & Competitive Pricing
We maintain upstream raw material suppliers with price-lock agreements in place to effectively manage material cost fluctuations. Also, considering that our clients may face pressure from market changes, we will try our best to offer reasonable discounts to both new and existing clients.
Secure Packaging & Shipping
Packaging can be customized according to your requirements. We provide transparent, real-time photos of the packaging and loading process for your verification. You can also choose your trusted freight forwarder for transportation to ensure the entire logistics process is secure and reliable.
About Us
Founded in 1999, SteelPRO Group operates three factories with a combined annual production capacity of over 500,000 tons. We specialize in manufacturing a wide range of steel products, including round steel, profiles, plates, and pipes. Our portfolio encompasses low-alloy structural steel, tool steel, special steel, and more.
With strict adherence to global standards such as GB, ASTM, DIN, EN, and JIS, we ensure high-quality products, including heat-treated, machined, and prestressed steel. Our solutions are trusted by customers in diverse industries, and we proudly export to different countries across Europe, North America, and Asia.
At SteelPRO, we are dedicated to delivering tailored steel solutions and growing alongside our dear clients.
Certification
FAQ
What are your prices?
Our prices are subject to change depending on supply and market conditions. For an accurate and up-to-date quote, please contact our sales team directly.
Can you provide relevant documentation?
Yes, we can provide a wide range of documentation, including Certificates of Analysis/Conformance, Insurance, Certificates of Origin, and any other required export documents.
What is the average lead time?
As per mass production, the lead time is 5-20 days after:
1) we have received your deposit; 2) we have received your final confirmation on your orders.
If our lead time doesn’t meet your deadlines, please contact our sales directly in advance in case of any potential issues. We will try to accommodate your needs in all cases, and we are able to do so in most cases.
Can you provide free samples?
Yes, we can provide free samples for quality evaluation. However, shipping costs are generally covered by your company.
Can I visit your factory?
Of course! You are welcome to visit our factory. Please contact us in advance to arrange a convenient time for your visit, and we will gladly organize a tour and provide any necessary information to ensure a productive visit.
Our Service
SteelPRO Group – manufacturer and solution provider for special steel, offering multi-industry application solutions and customised services, 100% quality free, accompanying customers in their growth!
Our Quality Control
- Roundness
- Tolerance
- Microstructure
- Non-Destructive Testing
- Destructive Testing
- Process Control
Service Integration Processing
- Welding
- Metal Fabrication
- CNC Machining
- Lathe
- Forming
