ASTM Square Carbon Seamless Steel Pipe

ASTM Square Carbon Seamless Steel Pipe

We specialized in manufacturing the full size of square tubes and rectangular tubes:20X20-600X600mm,square tubes,20X30-600X800mm rectangular tubes,for more than 20 years since 1997.

ASTM square carbon seamless steel pipe Product Description:

Chemical Composition:

Carbon Equivalent:

Ceq(%)=C+Mn/6+Si/24 +Ni/40+Cr/5+Mo/4+V/14

I grade product Ceq(%)

Mechanical Property:

Surface Qualty:

1.Cold bending section steel surface can not have bubbles,cracks,inclusions and transverse stratification,wrinkle,buckle and so on. Allow slight pit,convex,indentation,scratch and presure into the iron oxide,but is not greater than 10% of nominal wall thickness.

2.Surface defects allowed use grinding method to clear up,but after cleaning the thickness should be no less than minimum allowable thickness.

3.If have special requriements on surface quality of cold bending section steel ,determined by supply and demand.

Welding Quality:

1.Welds of cold bending section steel shall not be skip welding,lap welding and burn through.

2.Weld flaw allowed repair welding and grinding,but after welding and griding shold reach requirements specified in this standard.

3. Burrs around welding should be removed, burrs inside seams do not clear up,when have special request determined by supply and demand.

ASTM square carbon seamless steel pipe Product Photo Show:

ASTM square carbon seamless steel pipe Product Application:

1. Machinery manufacture: glass machinery, agricultural machinery, textile machinery, papermaking machinery

food machinery, electrical equipment, sanitation equipment.

2. Roads and Bridges: railway, aviation, expressway, overpass, road fence, traffic signs.

3. Construction Engineering: steel structure construction, sports venue, three-dimensional garage, exhibition hall.

4. Decoration: wrought iron doors and windows, outdoor advertising, pavilion and vestibule, glass curtain wall.

5. Transportation: automobile manufacture, ship manufacture, container, tricycle, tower crane.

Company Introduction :

Our company ASTM Square Carbon Seamless Steel Pipees on the usage, development and research of square and rectangular tubes over the passed 20 years. We purchased three production lines at the cost of over 16 million for expansion of the new factory in 2012, These production lines make full-sizes of square tubes and rectangular tubes: 20x20mm-600x600mm, 20x30mm-600x800mm, Thickness:1.0mm-35.0mm,over 2800 kinds of specifications.

Our company have passed ISO9001:2008 quality management system certification and have passed Europe Union EN10210-1:2006 ,10219-1:2006 CE certification in 2012. Company resorts more variety,large inventory,high quality,loe price,short delivery time,good after-sales service and many other competitive advantages,to become designated supplier of many large enterprises.Customers throughout our country in more than 20 provinces and cities and exported to the United States,Canada,Russia, India,Malaysia,Europe and other countries and regions.

Frequently Asked Questions

Q: Are you Factory or Trading Company?

A: We are factory, our main products include square and rectangular Steel pipe. Our products of large-diameter,thick-walled square or rectangular tubes fill the blank of domestic and abroad market.

Q: What is the Export Volume of your company?

A: We have a 200000 tons export volume per year in the past, with the expansion of the markets, the Export Volume is growing steady.

Q:Why choose our company?

A:we have passed ISO9001:2008 quality management system certification and have passed Europe Union EN10210-1:2006 CE certification in 2012.Compay resorts more variety,large inventory,high quality,low price,short delivery time,good after-sales service and many other competitive advantages,to become designated supplier of many large enterprises,customers throughout our country in more than 20 provinces and cities and exported to the United States,Canada,Russia,India,Malaysia,Europe and other countries and regions.

In order to make best quotation, Please kindly indicate length, width, thickness and the standard, material you required.

If you want to konw more information,please do not hesitate to contact me directly.

Seamless Steel Pipe mills, volume should go through continuous annealing (CAPL unit) to eliminate cold hardening and rolling stress, or batch annealing reach the ASTM Square Carbon Seamless Steel Pipe mechanical properties of the corresponding standard specifies. Seamless Steel Pipe surface quality, appearance, dimensional accuracy ASTM Square Carbon Seamless Steel Pipe better than hot-rolled plate, and right-rolled thin product thickness is about 0.18mm, so the majority of users favor.
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Seamless Steel Pipe deep processing of high value-added products. Such as electro-galvanized, hot dip galvanized, electro-galvanized fingerprint resistant, painted steel roll damping composite steel, ASTM Square Carbon Seamless Steel Pipe laminating steel plates, etc, so that the excellent quality of these products has a beautiful, high resistance to corrosion, has been widely used.