JIS G3445 Carbon Steel Tubes

JIS G3445 Carbon Steel Tubes

Carbon steel pipes can be divided into
1.seamless steel pipe
2.straight seam steel pipe
3.spiral steel pipe
4.high frequency welded steel pipe
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Product Details

JIS G3445 Carbon Steel Tubes

      Carbon steel pipes can be divided into seamless steel pipe, straight seam steel pipe, spiral steel pipe, high frequency welded steel pipe, etc.


      Two types of carbon steel tubes are divided into hot rolled and cold rolled (drawn) steel pipes.

The general carbon steel pipe is made of hot rolled or cold rolled alloy steel such as 10, 20, 30, 35, 45 high quality carbon steel 16Mn, 5MnV and other low alloy structural steels or 40Cr, 30CrMnSi, 45Mn2, 40MnB and other alloy steels. Seamless pipes made of low carbon steel such as 10 and 20 are mainly used for fluid conveying pipes. 45, 40Cr and other medium carbon steel seamless pipe for manufacturing             mechanical parts, such as cars and tractors of the force parts. Carbon steel pipes are generally used to ensure strength and flattening tests. Hot rolled steel pipes are delivered in hot rolling or heat treatment; cold rolling is delivered in heat treatment.

       Carbon steel pipes are made of perforated steel ingots or solid tube billets, and then made by hot rolling, cold rolling or cold pressing. Carbon steel pipe plays an important role in China's steel pipe industry. According to incomplete statistics, there are about more than 240 carbon steel pipe production enterprises in China, and about more than 250 sets of carbon steel pipe units, with an annual capacity of about about 4500000 tons. According to the caliber, < 76 is 35%, and phi 159-650 is 25%. Judging from the variety, 1 million 900 thousand tons of general purpose, 54%, 760 thousand tons of petroleum steel pipe, 5.7%, hydraulic pillar and precision pipe 150 thousand tons, 4.3% stainless steel bearing pipe and automobile tube 50 thousand tons, accounting for 1.4%.

Specifications: carbon steel specifications are expressed in outer diameter * millimeter wall thickness.

     Cold drawn (rolled) carbon steel seamless pipe: a perforated tube round → heating → → → annealing → pickling → Heading oiled (copper) → multi-pass drawing (cold) → blank tube straightening → heat treatment → → hydrostatic testing (testing) → storage → labeled 

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