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Company Information

Company Profile
 
        Panzhihua Iron and Steel Group Jiangyou Changcheng Special Steel Co., Ltd. ( abbreviation: Changcheng Special Steel ) is located in the beautiful scenery , pleasant climate and convenient transportation Jiangyou - poet Li Bai 's hometown. The company was founded in 1965, is a national key special steel research and production base , supporting enterprises and national key military backbone of large enterprises in Sichuan Province , after nearly five years of construction and development, has an annual output of 700,000 tons of special steel , titanium 3000 tons , sales income of 5.0 billion operating scale , forming a " superior steel production process , special equipment supporting the whole , research and development capacity , high -tech products ," the operating characteristics.
        Our products cover a wide range. Offers 12 categories of users, more than 350 brands, more than 5,000 senior high-quality special steel specifications , the metal products and include hot rolled sheets, cold-rolled plate , seamless pipe, forgings , including titanium products, including 34 Products has won national, ministerial and provincial title of quality products . Our products are widely used in the defense industry , the weapons industry , aviation, aerospace, marine , electronics, machinery , petrochemical, pharmaceutical, nuclear power and other fields. Military products , high temperature alloy , high alloy tool steel , stainless steel bar , precision seamless steel tubes, pipes nuclear power , titanium and other products occupies an important position in the domestic market share in the industry forefront.
        Supporting facilities. The company has a world-class level of precision seamless steel pipe production line , the domestic advanced level of wire rod rolling production lines, forged steel and titanium production line production line , where four production lines dedicated to military products . With the domestic advanced level of vacuum induction furnace , vacuum consumable smelting furnaces and other special equipment and a fully equipped 40 tons LF furnace , VOD refining furnace and other equipment ; has titanium production of 80M hydraulic machines, automatic weighing and mixing system , vacuum plasma welding box , 45MN hydraulic forging machine and other advanced production equipment ; domestic steel industry has only 3,150 tons of hot extrusion unit, only the beginning of Φ825 Midwest mill , 1,000 tons and 2,000 tons of vertical piercing machine forging machines processing equipment.
        R & D strength . The company has a research and development personnel thousand , total commitment to the national key projects 363 research projects have been completed state-assigned military and civilian research projects 346 , the new national research topics 2813 trial , in which 73 subjects were given the country , the Ministry of provincial Science and Technology Progress Award. Owned aviation G99, G50, chemical urea production grade stainless steel and many other nanoscale technology patents and production of steel , nuclear energy with high purity steel , high temperature alloys and corrosion-resistant alloys , wide flat steel mold a number of proprietary technologies. Satellite device steel, anti- hydrogen embrittlement HR series steel, steel turbojet aircraft to fill the gap , has developed and produced more than 50 brands, more than 300 varieties of new materials for China's aviation , aerospace, weapons industry , nuclear industry provides nearly 600 engineering and defense industry materials.
        Huge potential for development . Companies around the " build China's high-end metallic materials leader " objective, Premier Wen Jiabao to seriously implement the "three changes an improvement" important instructions to accelerate post-disaster New projects ; accordance with the " four high" product positioning, focus on improving the special stainless steel, tool production scale die steel, high temperature alloys , titanium and titanium alloys , and strive to climb long special company into an international market more competitive steel company, China 's largest manufacturer of high -alloy steel . April 9, 2010 , the company reconstruction projects have been formally approved by the State Development and Reform Commission , in May 2010 , the project officially started construction. Post-disaster reconstruction projects with a total investment 7.3 billion yuan , the construction period is 2 to 3 years, building content for the steelmaking and continuous casting project , electroslag smelting works , rolling project , forging works , titanium two eight sub- projects , after completion of the project annual production will be more than one million tons of special steel , titanium reach 10,000 tonnes onto a ten billion yuan of sales revenue .

1 , smelting equipment: electric furnace capacity 5t-40t, refining furnace capacity ( including VOD, LF, AOD) 5t-40t, non-vacuum induction furnace capacity 0.5t-10t, electroslag furnace capacity 0.35t-8t. 2 , pressure processing : Free forging machine model 1200t-4000t, electro-hydraulic hammer model 0.75t-5t; 825 -mill , 650 mill, 250 mill . 3 , machining : Polishing Φ8-Φ300; peeling machine Φ60-Φ180; car light lathe outside diameter ≤ 1.2 m, length ≤ 12 m. 4 , ingot ingot type : Normal and refining ingot 0.5t-25t; remelting ingot 0.35t-8t; 5, Size : Φ1.0-Φ600 round rolled products , forgings ; pipe ( outside diameter Φ3-Φ235) × ( wall thickness 0.5-40 ) ; sheet (0.5-12) × 1200 × 2400; thick rolling , forging plate : thickness ≥ 12, width ≤ 610; shaped pieces : square , flat , ring , canister , steps shaft. 6 , Heat treatment: special requirements to provide annealing, normalizing , tempering, solution, aging , quenching and other heat treatment process delivery of products. Second, the recommended varieties : 0Cr17Ni4Cu4Nb ( or 17-4PH, 630), 4Cr5MoSiV1 (H13), 1Cr17Ni2 ,0-4Cr13, 4145H, N1310, iron-based ( or nickel-based , cobalt-based ) dual-use materials, such as high-temperature alloys . In particular, stainless steel 0Cr17Ni4Gu4Nb (17-4PH, 630) with long-term high-quality materials specifications Φ8-Φ200 long-term spot more than 200 tons. According to user needs , providing electric arc furnace molding ( or casting ) steel, mold steel furnace slag ; annealing (HRC 30 ± 2), solid melting + aging treatment (HRC 28 ~ 40 +), quenching and tempering.
 
Standard: GB, ISO, DIN/GL, NF/BV, BS, JIS/JASO/NDS, ASTM/ SAE/ UNS/ AISI...THE LASTING AND GREEP TEST MACHINE ; 30T ELECTRONIC UNIVERSAL TESTING MACHINE ; GX71 LMAGE ANALYZER; CS600 CS ANALYZER ; QSN750 OES; AANALYST800 AAS ; OPTIMA2100DV ICP-AES

  My company has high power electric arc furnace,(U.H.P), LF, VD(VOD), ESR, (non)vacuum induction furnace, consumable electrode vacuum furnace, 4500 tons and 2000 tons free-forging hydraulic press set, electrode-hydraulic hammer etc, and formed complete forging lines. It has the capacity to produce bar, mou-ld, axle, cylinder, disc, ring and special shaped forged bar and forging. The annual output of  finished products is more than 5000 tons. It is the largest production
base of special steel forging in Southwest region.
The main products are special steel forging products that are stainless steel, tool and die steel, high temperature alloys, blade steel, carbon steel, alloy steel, milit-ary new trial materials and so on, which are widely used in aviation, aerospace, machine, automobile, vessel, petroleum, chemical and mould industries, and get the high praise from general customers.

45MN QUICK-FORGING LINE; MACHINING LINE;

FORGED BAR AND FORGINGS PRODUCTION PROCESS FLAW SHEET:
ELECTRODE ARC FURNACE+(NON)VACUUM INDUCTION FURNACE>>>LF; VD; VOD; ESR; CONSUMABLE ELECTRODE VACUUM FURNACE>.>>IC>>>FORGING HAMMER; QUICK-FORGING MACHINE>>>FORGED ROUND BAR; MODULE CYLINDRICAL SHELL; R-ING; DISC; AXLES.

ADVANCED PRODUCTION EQUIPMENTS: 20MN QUICK-FORGING MACHINE; 45MN QUICK-FORGING MACHINE;VACUUM INDUC-TION FURNACE; VOD REFINED-SMELTING LADLE FURNACE.


FORGED BAR &FORGING:

 

 

          Category                 Forged bar                                                   Axial forging                                                Ring and flan forgings                                               Module forging                 
     Diameter(mm)       technical standard                       Dia * L (mm)    Unit weight(kg)                    OD * L (mm)  Unit weight(kg)                       T * W (mm)  Unit weight(kg)                
   Carbon structural steel        Φ50--500          GB/T699;
     related agreement
          Φ180--1000*500~8500        ≤ 4200             Φ500~1500*100~600         ≤ 4200             100~400*300~800           ≤ 4000                
      Alloy structural
              steel
 Φ50--500   GB/T3077;
     related agreement
 Φ180--1000*500~8500  ≤ 4200  Φ500~1500*100~600   ≤ 4200              100~400*300~800           ≤ 4000                
         Low alloyed 
               steel
 Φ50--400   GB/T1591;
     related agreement
 Φ180--1000*500~8500  ≤ 4200  Φ500~1500*100~600   ≤ 4200              100~400*300~800           ≤ 4000                
            Carbon tool
                 steel
 Φ50--400   GB/T1298;
     related agreement
                           
           Alloy tool 
                steel
 Φ50--350   GB/T1299;
     related agreement
 Φ180--650*500~6000  ≤ 3500  Φ400~1200*100~500   ≤ 3500              100~300*300~700           ≤ 3500                
       High speed tool 
                steel
 Φ50--250   GB/T9942;
    
                           
       Spring steel
 
 Φ50--250   GB/T1222;
    
                           
         Bearing steel
 
 Φ50--350   GB/T18254;
     related agreement
 Φ180--650*500~6000  ≤ 3500  Φ400~1500*100~600   ≤ 3500                               
    Heat-resistant steel
 
 Φ50--350   GB/T1221;
     related agreement
 Φ180--650*500~6000  ≤ 3500  Φ400~1500*100~600   ≤ 3500              100~300*300~700           ≤ 3500                
      Super-alloy steel
 
 Φ50--300   GJB3165     related agreement  Φ150--400*400~3000  ≤ 2000  Φ300~1200*100~600   ≤ 2000                            
        Stainless steel
 
 Φ50--350  GB/T1220;
     related agreement
 Φ180--650*500~6000  ≤ 3500  Φ400~1500*100~600   ≤ 3500              100~300*300~700           ≤ 3500

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AISI 416Se EN 10083-3:2006 15-5 PH Data Sheet BS-EN-10083-3-2006 17-4PH
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Welcome to longhai special steel