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Q235B Galvanized Steel Pipe


Q235 galvanized steel pipe, made from low-carbon Q235 steel, offers excellent plasticity, weldability, and structural stability. With a tensile strength of 370-500 MPa and a yield strength of at least 235 MPa, it’s well-suited for load-bearing applications.Leading steel manufacturer specializing in durable and precision steel products.
•Common grades available
•Custom cutting service
•Export packing for sea shipment
•Fast quote by whatsApp / Email



Why Buyers Choose Us

Stable quality for bulk orders.
Support for custom size cutting.
Export sea packing for long-distance shipment.
Fast communication by WhatsApp and email.
Experience with orders from the Middle East, Africa, Central America, South America, Oceania, and Southeast Asia.
 

Q235 galvanized pipes are lightweight and easy to weld, retaining stability post-welding, which simplifies installation and transportation. Given these features, it’s a reliable choice for projects needing structural support, fluid transport (e.g. water and gas), cable protection, greenhouses, and municipal engineering. These pipes are easy to process, allowing for cutting, drilling, and bending, which supports customized and specialized structural applications.

Q235 galvanized steel pipes/tubes could bring the following benefits to your project:

  1. Corrosion-Resistant – Galvanized coating prevents rust, suitable for indoors and outdoors.
  2. High Strength – Strong load-bearing capacity for heavy structures.
  3. Easy to Weld – Simple to weld and customize for various needs.
  4. Cost-Effective – High strength and durability at a low cost.
  5. Low Maintenance – Long-lasting protection reduces upkeep.
Product Name Galvanized Pipe
Material Q195, Q235, A36, A53, A106, A529, A572, A992, ST37, ST52, SS400, S235, S275, S355 
Diameter 12mm-820mm
Thickness 0.3mm-35mm
Length 3 meters, 5.8 meters, 6 meters, 11.8 meters, 12 meters, customizable
Category Seam galvanized, seamless galvanized
Zinc layer thickness 40g/m²-650g/m²
Standard ASTM, ASME, DIN, JIS, CEN, GB
Galvanizing process Hot dip galvanizing, cold galvanizing, electrogalvanizing
Technology Thread, groove rolling, welding, threading
Processing services Bending, punching, cutting, groove cap
Application Construction, machinery, coal mining, chemical industry, electricity, railway vehicles, automotive industry, highways, bridges, containers, sports facilities, agricultural machinery, petroleum machinery, exploration machinery, greenhouse construction
MOQ 25tons

 

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

 

MECHANICAL INFORMATION

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

 

 

 

Applications

  • Oil & Gas: For transportation of petroleum, natural gas, and chemicals.
  • Water Supply: Safe and durable piping for water systems.
  • Construction: Structural use in building frameworks, facades, and other critical components.
  • Automotive & Machinery: Parts and components for heavy machinery and vehicles.
  • Power Generation: Ideal for power plants and energy-related applications.
  • Chemical Processing: Resistant to corrosive chemicals, ideal for industrial applications.

 

Honor and qualification

 

Quality Control

MTC available.Contact us to obtain the test report.

Third-party inspection support.

Photo/video confirmation before loading.

 

Packing and shipping

Standard export seaworthy packing.

Steel strip bundling/waterproof wrapping /edge protection.

Container loading photos available.

Support for EXW/FOB/CFR /CIF quotation.

 

FAQ

Q1: Can you provide MTC for carbon steel plate?
A: Yes, MTC can be provided according to the order requirement.


Q2: Can you cut carbon steel plate to custom sizes?
A: Yes, cutting service can be arranged based on thickness, size and quantity.


Q3: What is your MOQ?
A: MOQ depends on grade, thickness, size and whether the material is from stock or production.


Q4: Can you quote CFR or CIF to our port?
A: Yes, we can provide FOB, CFR or CIF quotation based on your destination port.


Q5: What information should we send for quotation?
A: Please send grade, thickness, width, length, quantity, application and destination port.


Q6: What is your delivery time?
A: Delivery time depends on stock status, specification and order quantity.

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