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Tianjin Wanlei Steel Pipe Co.,Ltd
TEL: 86-22-65815991
FAX: 86-22-25343802
CELL: 86-18526839451, 86-18526839452
EMAIL: admin@wanleipipe.com
WEBSITE: www.seamlesscarbonsteelpipe.com
ADD: Room 403, Unit 1, Building 31, Polar Square, Central Business District, Binhai New Area, Tianjin, China (Mainland)
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JIS G3444 Carbon Steel Tubes
Grade of JIS G3444 carbon steel tubes Application of JIS G3444 carbon steel tubes Used for civil engineering,architecture,steel towers,scaffoldings,struts,piles for suppression of landslide and other structures. Chemical composition of JIS G3444 carbon steel tubes Appearance of JIS G3444 carbon...
Description
Tianjin Wanlei Steel Pipe Co., Ltd. is one of the leading manufacturers and suppliers of jis g3444 carbon steel tubes in China, featured by quality products and low price. If you're going to wholesale durable jis g3444 carbon steel tubes made in China, welcome to get pricelist and free sample from our factory.
Grade of JIS G3444 carbon steel tubes
| Grade |
| STK290 |
| STK400 |
| STK500 |
| STK490 |
| STK540 |
Application Scenarios
Building Structural Frame
Used for building columns, roof trusses and warehouse supporting frames.
Civil Infrastructure
For transmission towers, foundation piles and other load‑bearing civil components.
Construction Site Supports
Suitable for scaffolding, guardrails and temporary engineering bracing.
Mechanical & Transport Frames
Applied in machinery bases, agricultural equipment and vehicle supporting structures.
Chemical composition
| Grade | C | Si | Mn | P | S |
| STK290 | - | - | - | 0.050 max | 0.050 max |
| STK400 | 0.25 max | - | - | 0.040 max | 0.040 max |
| STK500 | 0.24 max | 0.35 max | 0.30-1.30 | 0.040 max | 0.040 max |
| STK490 | 0.18 max | 0.55 max | 1.50 max | 0.040 max | 0.040 max |
| STK540 | 0.23 max | 0.55 max | 1.50 max | 0.040 max | 0.040 max |
Appearance
The tube shall be practically straight and both ends shall be at a a right angle to the axis of the tube.
The tube shall be free from defects which are detrimental to practical use.
When particularly required by the purchaser,the surface finishing and plating of the tube shall be agreed upon by the upon by the purchaser and manufacturer
Product show
Size:
OD:3/4'' WT:SGP
Our Advantages
Convenient transportation: Our company is located in Tianjin, and is close to the Tianjin Port. So convenient for loading and transporting.
Large inventory: We have large inventory to meet your needs, here you can find the product you want.
Fast delivery: We can rapidly prepare goods from other factories. The delivery is very fast.
High quality and low price: We can provide pipe fittings with high quality and best price to clients.
Quality control: We have a professional quality test team to control quality.
FAQ
Q: What is JIS G3444 carbon steel tube mainly used for?
A: It is a general‑purpose structural tube. Mainly for building frames, supports and mechanical parts, not for pressure fluid pipelines.
Q: What typical grades are available for JIS G3444 tubes?
A: Common grades include STK400, STK490. Different grades offer different strength for structural load‑bearing requirements.
Q: Can JIS G3444 steel tube be welded on site?
A: Yes. It has good weldability. Cutting and field welding are allowed for structural assembly.
Q: Can you provide MTC for JIS G3444 carbon steel tubes?
A: Yes. Material test certificates can be provided according to customer requirements.
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