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Zhangjiagang Haiguo heavy forging Co.,Ltd
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Tel:0512-58903388
Mobile:13962146872
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About us
Zhangjiagang Haiguo Heavy Forged Piece Co., Ltd. is a specialized manufacture engaged in producing and designing all kinds of heavy forging pieces. Shanghai Fuqin Machinery Co., Ltd. one of the shareholders is a leading manufacturer of petrochemical equipment in China. Haiguo has a complete production equipment and technology, a production capacity of 30,000 ton per year. Main products are petroleum machinery、I—IV type pressure vessel forging pieces for chemical industry、power station、shipping、aviation、nuclear power and all kinds of engineering machinery forgings. The shape of the products are: rotor shaft、producing all kinds of forging according to the standard of home and abroad, such as flange、wellhead equipment and valves which are used in oil production equipment 、tube forging.

A broad range of forging materials GB standard carbon steel、alloy steel、heat resistance stainless steel and the ultra-low carbon stainless steel and so on. We also produced a batch of forging pieces according to the United States and the European standard material forgings. Has a mature production of A105 、 A266 、 A350 、 4130 、 4140 、 4340 、 F5 、 F11 、 F22 、 F51 、 F53 、 F91 、 F92 、 F304 ( L )、 F316 ( L )、 F321 ( L ) and other forgings according to the standard of ASME、ASTM. At present, we are producing SAF2507 (F53) duplex stainless steel special material and so on. And also our heat-treatment makes its mechanical properties and corrosion resistance meet the requirements. 
Mature Europe standard products are mainly: S235 、 S355 、 16Mo3 、 C422 and other carbon steel alloy steel, stainless steel forgings according to the standard of EN10025 、 EN10083 、 EN10084 、 EN10250 、 EN10283 、 EN10088 、 EN10095 and so on. 
We have about 100 employee, and a variety of technical backbone experts hired from Shanghai, Wuhan and other large enterprises institute who engaged in forging、 heat treatment and non-destructive testing, etc. This allows us have a large technical superiority to peer. On every quality strategic pass we have dedicated inspectors. Company covers an area of 20,000 square meters, including construction areas of 15,000 square meters, production area of 12,000 square meters.
Company well-equipped, forging equipment of our company involves 5 tons single arms electric-hydraulic hammer, 5 ton operation machine, 5 tons discharge machine etc. 2500tons Hydraulic pressure machine, 4000mm ring rolling machine, 15 tons operations machine, 12 tons discharge machine etc. Heat treatment equipment includes 150KW、360KW、930KW heat treatment? furnace. The metal machining equipment are various of belt saws machine、large vertical lathe, horizontal lathe, Plano-boring、milling and drilling machine etc.,as well as 16 tons, 5 tons, 3 tons travelling crane.
Physics & Chemistry Laboratory equipped with all kinds of machines: King portable hardness tester imported from American、the computer crack detector、impact tester、low temperature trough、universal testing machine、Brinell hardness tester、impact test sample broaching machine、optical metallographic microscope and so on.
In order to well controlling the quality of raw materials, the company imports a mobile spectrometer from SPECTRO Company in Germany, control product quality from the material.
Company has a significant feature of strong focus on researching to peer, in heat treatment section the company equip with micro-furnace, carry out experiment to new products and new materials then study its heat treatment process. At the same time, we cooperate with iron smelting company to study the Physical and Mechanical Properties of steel, reasonable mix of components. Especially for duplex stainless steel, super austenitic stainless steel, control and reasonable mix of components is very important, and it is crucial to structure control and mechanical properties. After a long-term exploration research, in the field of nuclear power and aviation, there are special requirements for those special material, we have a lot of valuable experience in the process of forging and heat treatment.
In the forging process, after many years of trial practice, the company has formed a complete set of technical process from the raw materials, heating, forging to heat treatment. Especially the high-temperature alloy steel forging, our forging parts NiCr20TiAl, the content of Ni up to 65%, and its forging is very difficult. Now, the high-temperature alloy product forged by us has successfully taken place of imported products.
Our price is more competitive and quality assurance, the company has released Class A manufacture license of pipe components. At present, we have? some clients, the United States oil company GE, SIEMENS, Germany, including a wide range of domestic and foreign customers, getting their high evaluation, and have established long-term relationship with the United States, Singapore and other countries of multinationals.
The company is located in the famous port city –Zhangjiagang in the Yangtze River delta. Neighboring on the beautiful Yangtze River, with Riverine and Huning express highways on its south, Shanghai on its east and Nanjing on its west, traffic is extremely convenient. Sincerely welcome customers from home and abroad to our company for business or cooperation, we’ll try our best to provide high quality products and efficient service for you.