Xi'an Dongmeng Group Co., Ltd. is one of the most reliable manufacturers and suppliers of jis g3466 structural pipe in China, also supports customized service. With abundant experience, we warmly welcome you to wholesale cheap products in stock here and get free sample from our factory. For price consultation, contact us.
JIS G3466 Structural Pipe is a Japanese Industrial Standard carbon steel square and rectangular hollow section used for structural and mechanical applications. It is widely applied in building frameworks, machinery, shipbuilding, automotive structures, and steel fabrication. Manufactured according to JIS G3466 standards, this pipe features excellent weldability, high strength, and good dimensional accuracy. Our factory produces JIS G3466 carbon steel structural pipes in various shapes - square, rectangular, and circular - with surface finishes including black, oiled, or hot-dip galvanized.
With advanced forming and high-frequency welding technology, we ensure smooth surfaces, uniform wall thickness, and stable mechanical properties for long-term durability.
Main Keywords: JIS G3466 Structural Pipe, JIS G3466 Carbon Steel Tube, Square Hollow Section, Rectangular Steel Pipe, Structural Steel Tube Manufacturer, JIS G3466 STKR400, STKR490
Product Specifications
| Standard | JIS G3466 – Carbon Steel Square and Rectangular Tube for General Structural Purpose |
|---|---|
| Material Grades | STKR400, STKR490, STKR500 |
| Shape | Square / Rectangular / Round |
| Outer Diameter (OD) | 15×15 mm – 500×500 mm (Square) / 20×30 mm – 400×600 mm (Rectangular) |
| Wall Thickness | 1.0 mm – 25 mm |
| Length | 6 m, 12 m, or customized |
| Surface Finish | Black, Oiled, Hot-Dip Galvanized, Pre-Galvanized |
| End Type | Plain End, Beveled End, Threaded (optional) |
| Manufacturing Process | ERW (Electric Resistance Welding) or Hot Rolled Forming |
| Standards Equivalent | ASTM A500, EN10219, GB/T 6728 |
| Tolerance | As per JIS G3466 standard requirements |
| Packing | In bundles with steel strips, waterproof wrapping, or wooden pallet export packing |
Chemical Composition (Typical %)
| Grade | C (max) | Mn (max) | P (max) | S (max) |
|---|---|---|---|---|
| STKR400 | 0.25 | 1.60 | 0.040 | 0.040 |
| STKR490 | 0.20 | 1.60 | 0.035 | 0.035 |
| STKR500 | 0.18 | 1.60 | 0.035 | 0.035 |
Mechanical Properties
| Grade | Yield Strength (MPa) | Tensile Strength (MPa) | Elongation (%) |
|---|---|---|---|
| STKR400 | ≥ 245 | ≥ 400 | ≥ 23 |
| STKR490 | ≥ 315 | ≥ 490 | ≥ 20 |
| STKR500 | ≥ 355 | ≥ 500 | ≥ 18 |
International Standard Size Chart (Typical Dimensions)
| Shape | Size Range (mm) | Wall Thickness (mm) | Length (m) |
|---|---|---|---|
| Square | 15×15 – 500×500 | 1.0 – 25 | 6 / 12 / Custom |
| Rectangular | 20×30 – 400×600 | 1.0 – 25 | 6 / 12 / Custom |
| Round | Ø21.3 – Ø508 | 1.5 – 20 | 6 / 12 / Custom |
Features & Benefits
✅ High Structural Strength - Excellent load-bearing capacity and mechanical performance.
✅ Superior Weldability - Compatible with MIG, TIG, and arc welding methods.
✅ Accurate Dimensions - Tight tolerance control ensures consistent wall thickness.
✅ Smooth Surface Finish - Enhances appearance and coating adhesion.
✅ Multiple Shapes and Sizes - Available in square, rectangular, and round profiles.
✅ Customizable Finishes - Black, galvanized, or painted for corrosion protection.
✅ Conforms to International Standards - Meets JIS, ASTM, EN, and GB standards.
Products Description
JIS G3466 STRUCTURAL PIPE
JIS G3466 carbon steel square pipes for general structural purposes.
Standard: JIS G3466
Materials: STKR 400, STKR490
Size: DN15-DN1200 WT SCH10-SCHXXS
|
Grade |
C |
Si |
Mn |
P |
S |
|
STKR400 |
0.25 max |
- |
- |
0.040 max |
0.040 max |
|
STKR490 |
0.18 max |
0.55 max |
1.50 max |
0.040 max |
0.040 max |
Package:
1. Bundle package/In bundle with plastic bag outside/ In wooden case
2. Marking as per customer's request
3. Paint on the pipe as per customer request
4. Pipe caps as customer request
5. As per your requirement
JIS G3466 Structural Pipe
Xi'an Dongmeng Steel Co.,Ltd,
15
years
We have been working in the industry since 2008
32
certificates
We have obtained most of the professional certificates in the industry and insist on international standards of production.
18
awards
We have won a lot of awards for strong creativity
JIS G3466 structure square pipe
JIS G3466 structural pipes are widely used in many industries such as construction, machinery, automobile manufacturing, shipbuilding, container manufacturing, etc. due to their high strength, good welding performance, corrosion resistance and processing flexibility. They play an important role in these fields as load-bearing structures, supporting structures, fluid transportation pipelines, etc.
JIS G3466 structure Rectangular tube
JIS G3466 standard specifies the manufacturing process, dimensions, physical properties and application range of square and rectangular steel tubes (including angle steel tubes) used in civil engineering, construction and other structures. These steel tubes are usually made of high-quality hot-rolled or cold-rolled low-carbon steel, and their chemical composition and mechanical properties are strictly required to ensure superiority in load-bearing and tensile strength.
about us
Our factory & quipment
Xi'an Dongmeng Steel Co.,Ltd,
Best Selling
Xi'an Dongmeng Steel Co.,Ltd,
Xi'an Dongmeng Steel Co.,Ltd,
Xi'an Dongmeng Steel Co.,Ltd,
Xi'an Dongmeng Steel Co.,Ltd,
Xi'an Dongmeng Steel Co.,Ltd,
Xi'an Dongmeng Steel Co.,Ltd,
Xi'an Dongmeng Steel Co.,Ltd,
Xi'an Dongmeng Steel Co.,Ltd,
Our Certificate
CE
CE
CE
CE
We are committed to providing our customers with an exceptional buying experience. Our knowledgeable and friendly sales team is always available to assist you in selecting the right galvanized steel pipe for your needs. We offer prompt shipping and secure payment options to ensure a smooth and hassle-free purchase.
Our address
Room 4107, Runfeng Building, Sanqiao New Street, Weiyang District, Xi'an City, Shaanxi Province
Phone Number
+86 15769214734
FAQ (Frequently Asked Questions) Products Description
Q1: What is the difference between STKR400 and STKR490 grades?
A1: STKR490 has higher tensile and yield strength than STKR400, making it suitable for heavier structural applications.
Q2: What manufacturing process is used for JIS G3466 pipes?
A2: Pipes are typically produced by ERW (Electric Resistance Welding) or Hot Rolled Forming, ensuring uniform wall thickness and smooth weld seams.
Q3: Can you supply both square and rectangular sections?
A3: Yes, we provide square, rectangular, and round structural tubes according to customer requirements.
Q4: Are JIS G3466 structural pipes galvanized?
A4: They can be supplied in black, oiled, or hot-dip galvanized surface finish based on corrosion protection needs.
Q5: What is the standard length of JIS G3466 structural pipes?
A5: Standard lengths are 6 meters and 12 meters, but we can cut to customized lengths upon request.
Q6: Can these pipes be used for load-bearing applications?
A6: Yes, JIS G3466 pipes are designed specifically for structural and mechanical load-bearing uses.
Q7: Do you offer third-party inspection or mill test certificates?
A7: Absolutely. We provide MTC (Mill Test Certificate EN 10204/3.1) and support third-party inspections (SGS, BV, TUV, etc.) before shipment.
Q8: What is your minimum order quantity (MOQ)?
A8: The MOQ is typically 5 tons per size, but trial orders or mixed sizes are accepted for new customers.
Q9: How do you pack the pipes for international shipment?
A9: Pipes are bundled with steel strips, capped at both ends, and wrapped with plastic film or waterproof fabric. Wooden pallets are used for container loading.
Q10: What payment terms and delivery options are available?
A10: We accept T/T, L/C at sight, and offer FOB, CIF, CFR shipping terms. Typical delivery time is 15–25 days after deposit.
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