Shandong Xiangtong Huiyuan Metal Materials Co., Ltd.
Shandong Xiangtong Huiyuan Metal Materials Co., Ltd.
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Hot Rolled Seamless Steel Pipe
Outer Diameter: 32-630mm.
Wall Thickness: 2.5-75mm.
Cold Rolled Seamless Steel Pipe
Outer Diameter: 5-200 mm
Wall thickness: 2.5-12mm
Appearance Quality
1.There shall be no cracks, folds, folds, delaminations, hair lines and scarring defects on the inner and outer surfaces of the steel pipe. These defects should be completely removed, and the wall thickness and outer diameter should not exceed negative deviations after removal.
2.Both ends of the steel pipe should be cut at right angles and burrs should be removed. Steel pipes with a wall thickness greater than 20mm are allowed to be cut by gas cutting and thermal sawing.
| Alloy Steel Pipe | 12Cr1MoVG 12CrMoG 15CrMoG 12Cr2Mo<A335P22> Cr5Mo<A335P5> Cr9Mo<A335P9> 10Cr9Mo1VNb<A335P91> 15NiCuMoNb5<WB36> 12Cr2MoWVTiB | GB5310-1995 GB6479-2000 GB9948-2006 DIN17175-79 ASTM SA335 ASTM SA213 JISG3467-88 JISG3458-88 | ∮8-1240*1-200 | Suitable for seamless steel pipes for high temperature, low temperature and corrosion resistance in petroleum, chemical, electric power and boiler industries |
| Low and Medium Pressure Boiler Pipe | 10# 20# 16Mn(Q345A.B.C.D.E) | GB3087-2008 | ∮8-1240*1-200 | Suitable for manufacturing low-pressure and medium-pressure boilers and locomotive boilers of various structures |
| Fluid Pipe | 10#,20# ASTM A106A,B,C,A53A,B 16Mn(Q345A.B.C.D.E) | GB/T8163-2008 ASTM A106 ASTM A53 | ∮8-1240*1-200 | General seamless steel pipe suitable for conveying fluids |
| Structural Pipe | 10#,20#,45#,27SiMn ASTM A53A,B 16Mn(Q345A,B,C,D,E) | GB/T8162-2008 GB/T17396-1998 ASTM A53 | ∮8-1240*1-200 | Suitable for general structures, engineering supports, machining, etc. |
| Oil Casing | J55,K55,N80,L80 C90,C95,P110 | API SPEC 5CT ISO11960 | ∮60.23-508.00 *4.24-16.13 | Tubing is used to extract oil or natural gas in oil wells Casing is used as the wall of oil and gas wells |
Production Process
The main production process of hot-rolled seamless steel pipe (main inspection process):
Tube blank preparation and inspection△→tube blank heating→piercing→tube rolling→steel reheating→fixed (reduced) diameter→heat treatment△→finished pipe straightening→finishing→inspection△ (non-destructive, physical and chemical, Taiwan inspection)→warehousing
Hot Rolled Seamless Steel Pipe are generally produced on automatic rolling mills. After inspection and removal of surface defects, the solid tube blank is cut into required lengths, centered on the end face of the perforated end of the tube blank, then sent to a heating furnace for heating, and perforated on a punching machine. During the continuous rotation and advancement of the perforation at the same time, under the action of the roll and the plug, a cavity is gradually formed inside the tube blank, which is called a capillary tube. And then sent to the automatic rolling mill to continue rolling. Finally, the wall thickness of the whole machine is averaged, and the diameter is sizing by a sizing machine to meet the specification requirements. It is a relatively advanced method to produce hot-rolled seamless steel pipes with continuous pipe rolling mills.
Cold Rolled Seamless Steel Pipe Cold rolling is usually carried out on a two-roll mill, and the steel pipe is rolled in an annular pass composed of a variable-section circular hole groove and a stationary conical head. Cold drawing is usually carried out on a single-chain or double-chain cold drawing machine of 0.5 to 100T.
Application
1. For buildings, there are many pipelines at the bottom, groundwater extraction when building buildings, boiler hot water transportation, etc.
2. Machining, bearing sleeves, processing machinery parts, etc.
3. Electrical: gas transmission, water power generation fluid pipeline.
4. Anti-static pipes for wind power plants, etc.
Our Company
Shandong Huiyuan Metal Material Co., Ltd. is located in Liaocheng Economic and Technological Development Zone, Shandong Province,which is known as "Water City North of the Yangtze".
Hui Yuan is a trading company established based on Liaocheng Development Zone Jinyun Steel Pipe Co., Ltd. The factory has more than ten years of professional production experience .Now we have cold rolled seamless steel pipe 12 production lines and hot rolled seamless steel pipe 1 production line,one more hot rolled seamless steel pipe production line is under construction.
Our main products are listed as follows: Hot Rolled steel pipe, Precision Cold Rolled steel pipe, Cold Drawn steel pipe, alloy steel pipe, bearing steel pipe, spiral pipe, galvanized pipe,Honed tube,special shape steel pipe.etc.
Our products have been exported to Germany, South Korea, Russia, Malaysia, Pakistan, Thailand, India, Ukraine and other countriesand regions. We sincerely welcome friends from all over the world to contact us and establish mutually beneficial business relations.
