Q215B Galvanized Steel Pipe/Tube
- Alloy or Not: Non-alloy
- Type: Welded pipe
- Technique: ERW/HFW, EFW, DSAW/SSAW etc.
- Size: As requested; details see product parameters
- Section Shape: Round, Square, Rectangular, Oval, etc.
- Galvanization: Hot-dip, Electro, Pre
- Processing Service: Cutting, Punching, Bending, Welding, Decoiling, 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
Q215B galvanized steel pipe is a solid option if you prefer durability and cost-effectiveness. It is a low-carbon steel pipe coated with zinc to enhance its corrosion resistance for outdoor use. Though might not be as good as stainless steel, it has a longer lifespan compared to non-galvanized options.
The galvanized coating is typically applied through a hot-dip process, where the pipe is submerged in molten zinc, ensuring a strong bond. We can also provide other common galvanizing services if you require them.
It is also easy to cut, shape, and weld for various applications. You’ll often find Q215B galvanized steel pipes commonly used in construction for scaffolding, agriculture for fencing, and plumbing for water supply lines.
Contact us if you are unfamiliar with this product or have questions unsolved.
Features
Q215B galvanized steel pipes could bring the following benefits to your project:
- Great Rust Protection – The galvanized layer keeps it rust-free for longer, even in humid or outdoor spots.
- Lasts Long – Built to serve for years, so you spend less on replacements and upkeep.
- Strong and Reliable – Tough enough to handle heavy-duty jobs.
- Easy to Work With – Simple to cut, weld, and shape for whatever project you have.
- Affordable – Costs less than other rust-proof options, giving you good bang for your buck.
- Quick to Install – Not too heavy, making it easy to move and install, saving time on site.
Applications
Construction
Structural supports, building frames, scaffolding, roofing frameworks, etc.
Automotive
Exhaust systems, chassis components, roll cages, engine support frames, etc.
HVAC
Ductwork, piping systems, ventilation frameworks, cooling towers, etc.
Water Management
Irrigation systems, water pipelines, drainage systems, stormwater management, etc.
Telecommunications
Communication towers, antenna masts, satellite structures, equipment enclosures, etc.
Furniture
Table frames, chair frames, bed frames, storage racks, etc.
Product Parameters
| Parameter | Details | |
|---|---|---|
| Standard | GB/T 700, GB/T 3091, GB/T 3092-1993, GB/T 13912, ISO 1461, EN 10240, GB/T 21835, GB/T 13793, JIS G3452, JIS G3444, GB 3640-88, etc. | |
| Grade | Q215B | |
| Deoxidation Method | F (Rimmed), Z (Killed), TZ (Special Killed) | |
| OD (Outer Diameter) | Pipe | 21.3 – 219 mm; or as requested |
| Tube | 10 – 114 mm; or as requested | |
| WT (Wall Thickness) | Pipe | 2.0 – 12.0 mm; or as requested |
| Tube | 0.5 – 6 mm; or as requested | |
| Length | Pipe | Standard 6m or 12m; or as requested |
| Tube | Standard 6m; or as requested | |
| Tolerance | ±1%, or as requested | |
| Section Shape | Round, Square, Rectangular, Oval, etc. | |
| Galvanization | Hot-Dip Galvanizing, Electro-Galvanizing, Pre-Galvanizing | |
| Zinc Coating | Z30-600 g/m² | |
| Technique | 1) Electric Resistance Welding / High-Frequency Welding (ERW / HFW) ; 2) Electric Fusion Welding (EFW) ; 3) Double Submerged Arc Welding / Spiral Submerged Arc Welding (DSAW / SSAW) |
|
| End | Plain (PE), Beveled (BE), Threaded (TE), Grooved, or as requested | |
| End Protector | Plastic caps, Metal end caps | |
| Pipe Fittings | Elbows, Tees, Couplings, Threaded, Flanges, Caps, etc. | |
| Surface Treatment | 1) Skin Pass, Sand Blasted 2) Pre-painted 3) Galvanized 4) Oiled 5) Passivated 6) 3LPE, FBE, or other anti-corrosive coatings 7) As requested |
|
| Testing Method | Hydrostatic Test, NDT, Tensile Test, Bending Test, Adhesion Test, Coating Thickness Test, etc. | |
| Application | Structural supports, building frames, scaffolding, exhaust systems, piping systems, irrigation systems, water pipelines, communication towers, antenna masts, etc. | |
| Certification | Approved by ISO 9001, CE | |
| Packaging | Standard seaworthy packing, or as requested | |
Material Specifications
Chemical Composition
| Grade | Carbon, C | Silicon, Si | Manganese, Mn | Phosphorus, P | Sulfur, S | Chromium, Cr | Nickel, Ni | Copper, Cu | Arsenic, As | Nitrogen, N |
|---|---|---|---|---|---|---|---|---|---|---|
| Q215B | ≤0.15 | ≤0.35 | ≤1.2 | ≤0.045 | ≤0.045 | ≤0.3 | ≤0.3 | ≤0.3 | ≤0.08 | ≤0.008 |
*Table data according to GB/T 700-2006.
*Cr, Ni, Cu, N, and As in the table are all residual contents.
Mechanical Properties
| Diameter (mm) | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Impact Absorbed Energy KV2 (J) |
|---|---|---|---|---|
| ≤16 | 335~450 | ≥215 | ≥31 | ≥27 |
| >16 ~ 40 | 335~450 | ≥205 | ≥31 | ≥27 |
| >40 ~ 60 | 335~450 | ≥195 | ≥30 | ≥27 |
| >60 ~ 100 | 335~450 | ≥185 | ≥29 | ≥27 |
| >100 ~ 150 | 335~450 | ≥175 | ≥28 | ≥27 |
| >150 ~ 200 | 335~450 | ≥165 | ≥26 | ≥27 |
*Table data according to GB/T 700-2006.
*The test temperatures for impact absorption energy KV2 are +20°C, 0°C, and -20°C.
Why Choose Us
Consistent Quality
We address your primary coating quality concerns with Q215B galvanized steel pipes/tubes — 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 Q215B galvanized steel pipes/tubes, maintaining tight tolerances within ±0.01mm 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
