Liaocheng Xinxuan Steel Co., Ltd
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Customized large-diameter seamless steel pipe
What is the price of customized large-diameter seamless steel pipe 299 * 243 per ton? The difference between hot-rolled precision steel pipe and hot-r
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What is the price per ton for custom-made large-diameter seamless steel pipe 299 * 243

The difference after hot-rolled precision steel pipe
Hot rolled precision steel pipes are made from continuous casting round billets or initial rolled billets as raw materials. They are heated by a stepper heating furnace, descaling by high-pressure water, and then enter the roughing mill. The roughing material is cut at the head and tail, and then enters the finishing mill for computer-controlled rolling. After final rolling, it is cooled by laminar flow and coiled by a coiling machine to form straight coils. The head and tail of straight curls are often tongue shaped or fish tail shaped, with poor accuracy in thickness and width, and often have defects such as wavy, folded, and tower shaped edges. Its coil weight is relatively heavy, and the inner diameter of the steel coil is 760mm. After the straight coil is processed by cutting the head, tail, edge, and multiple passes of straightening, leveling, and other finishing lines, it is then cut or rewound into hot-rolled steel plates, flat hot-rolled steel coils, longitudinal cutting strips, and other products. If the hot-rolled finished coil is acid washed to remove the oxide skin and coated with oil, it becomes hot-rolled acid washed plate coil.
Common specifications for precision steel pipes|Allowable dimensional deviation for precision steel pipes
10 # 0.07~0.13 0.17~0.37 0.35~0.65 ≤ 0.035 ≤ 0.035
20 # 0.17-0.23 0.17-0.37 0.35~0.65 ≤ 0.035 ≤ 0.035
35 # 0.32~0.39 0.17~0.37 0.35~0.65 ≤ 0.035 ≤ 0.035
45 # 0.42~0.50 0.17~0.37 0.50~0.80 ≤ 0.035 ≤ 0.035
40cr 0.37~0.44 0.17~0.37 0.50~0.80 ≤ 0.035 ≤ 0.035 0.08~1.10

25Mn 0.22~0.2 0.17~0.37 0.70~1.00 ≤ 0.035 ≤ 0.035 ≤ 0.25

Liaocheng Xinxuan Steel Co., Ltd. is a professional enterprise dedicated to the production, processing, and sales of seamless steel pipes. The company specializes in various imported and domestically produced alloy steel pipesStainless steel pipeSeamless steel pipes for structural use, seamless steel pipes for fluid transportation, seamless steel pipes for low, medium, and high pressure boilers, and petroleum cracking pipes; Alloy seamless steel pipe, bearing steel pipe, special welded steel pipe, spiral pipe, galvanized pipe, stainless steel pipe, rectangular pipe, etc. The company has a large inventory and a complete range of products. We are excellent agents for major steel mills such as Tianjin Tiangang, Baotou Baogang, Shanghai Baosteel, Chengdu Pangang, Hubei Yegang, and Xining Special Steel. And with the larger
Steel mills establish solid business relationships. We can customize various large diameters and special thick walls for customers
The regular resources of high-quality seamless steel pipes for large and medium-sized steel mills, including Baosteel, Chengdu, Tianjin, Baosteel, Ansteel, Xigang, Yegang, Angang, Henggang, and Changgang, are: 10 #, 20 #, 35 #, 45 #, 16Mn, 27SiMn, 10CrMo910, 15CrMo, and 35CrMo. Implementing national standards: GB/T8162-99 Structural Pipe, GB/T8163-99 Fluid Pipe, GB/T3087-99 Medium and Low Pressure Boiler
Seamless steel pipes of various standards, including furnace tubes, GB/T5310-95 high-pressure boiler tubes, GB/T6479-2000 fertilizer specific tubes, 27SiMn hydraulic support tubes, high-pressure alloy tubes, GB/T9948-85 petroleum cracking tubes, GB9948-88, etc
Liaocheng Xinxuan Steel Co., Ltd
Phone: 0635-8878611 2126991 2126992
Fax: 0635-2126992
Mobile phone:
Contact: Manager Wang
Address: No. 13, A3 District, Dadong Steel Pipe City, Liaocheng City

The latest knowledge on steel pipes is as follows:

Steel Pipe Price List
Weight per meter of steel pipe
Theoretical weight table per meter for spiral steel pipes
rectangleTheoretical weight table of steel pipes


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