2. Field line pipe for West-East Gas Pipeline Station GB/T9711.2 L245NB Φ1146, Φ895, etc.
3, submarine oil pipeline pipe API5L X52 PSL2 Φ8910, Φ114.311.1
4. Oilfield Pipe N80 Non-Quality-Reducing Pipe API 5CT Φ139.77.72 J55 Oil Pipe API 5CT Φ735.51
5, truss arm tube (integral quench tube) protocol standards, 20Mn2B, 20Mn2, Φ14615, etc., for lifting equipment with crawler cranes
6. Special-purpose cylinder and bracket tube T91, steel 102 series high-pressure boiler tube GB5310-1995, used in high-temperature and high-pressure environment of thermal power station
7. Tractor rear axle tube 35MnVN, rear axle of crawler tractor
8, ultra-high strength structural tubes 35CrMnsi, 30CrMnSiNi2A, for military, aircraft landing gear tube
9, axle tube 20Mn2, Φ17812, Φ12719, etc.
10, rock tunneling protocol standards J55, Φ266, Φ316, etc., for highway and large hydropower station dam reinforcement
11, hydraulic pillar pipe GB/T17396-1998, 27SiMn, used for coal mine machine operation support fixed, according to American standard boiler and superheater with carbon steel seamless steel pipe ASTM A210, 210C, Φ606
12. Automobile axle bushings YB/T5035-1996, 45Mn2\45
13, long heat exchanger tube 20, Φ19216000-21000, for heat exchangers
14. Fork rod seamless tube CR-1, Φ485, used for CR speeding crossbar for train speeding
15. Directional Spiral Special Shaped Seamless Pipe for Rocket Gunship Φ1232.2, MP16Mn, GJB459-88
16, seawater corrosion resistance tube Q/CG41, 10CrMoA1, Φ1084, Φ252.5
17, submersible motor shaft pipe protocol standard Φ3111, Φ3613.5, 40Cr, 35CrMo, 35CrMoV, for the motor shaft of the pump
18. Pipes for low-temperature pipelines GB/T18984-2003, 09DG, 10MnDG, 09Mn2VDG, B655, used in the petrochemical industry in the low-temperature environment of the fluid transfer pipeline, nuclear power plant pipe, military pure iron pipe DT3
19, 710 Super Cannon Body Tube
20, straight nine machine tube 15CDV6
21. Stainless steel seamless pipes for boilers and heat exchangers GB13296-1991, 0Cr18Ni9Ti, 0Cr18Ni11Ti, Φ1928900, etc.
22, periscope tube, automobile, motorcycle shock absorber precision seamless steel pipe 10,20, etc.
23. Tracer SAG1035, Φ1009.5
Information Sources:
1. Cobalt oxide: usually cobalt oxalate or cobalt carbonate as raw materials calcined at 500-600 ℃ cobalt oxide, the main reaction is as follows:
CoC2O4 == CoO + CO + CO2; CoCO3 == CoO + CO2
2. Cobalt hydroxide: It can usually be neutralized with sodium hydroxide solution in cobalt chloride solution or cobalt sulfate solution. The main reactions are as follows:
Co2 ++ 2OH - == Co (OH) 2 Co (OH) 2 + O2 + 2H2O == 4Co (OH) 3
3. Cobalt chloride: usually available cobalt powder with dilute hydrochloric acid into cobalt chloride solution, and then crystallized by evaporation of cobalt chloride crystals, the main reaction is as follows: Co + HCl --- COCl2; Co + H2SO4 --- COSO4
4. Cobalt sulfate: usually cobalt oxide as raw material, dissolved in sulfuric acid after evaporation crystallization of pink cobalt sulfate crystals, the main reaction is as follows: CoO + H2SO4 == CoSO4 + H2O
5. Cobalt carbonate: It can usually be obtained by precipitation with sodium carbonate solution in cobalt chloride solution or cobalt sulfate solution. The main reactions are as follows:
CoCl2 + Na2CO3 == CoCO3 + 2NaCl
6. Cobalt oxalate: It can usually be precipitated with ammonium oxalate solution in cobalt chloride solution or cobalt sulfate solution. The main reactions are as follows:
(NH4) 2C2O4 + CoCl2 == CoC2O4 + 2NH4Cl
7. Oxidation of high cobalt: cobalt carbonate or cobalt oxalate can usually be heated in oxygen, further oxidation obtained, the main reaction is as follows:
3CoCO3 + O2 ==== Co2O3 ++ CO2; CoC2O4 + O2 ==== Co2O3 + CO2 + CO
8. Cobalt Hydroxide: 4Co (OH) 2 + O2 + 2H2O === 4Co (OH) 3; 2Co (OH) 2 + NaClO + H2O == 2Co (OH) 3 +
2Co (OH) 3 + 6HCl == 2CoCl2 + Cl2 + 6H2O
Cobalt Compounds
Cobalt Compounds,Spinel Compounds,Multi-Functional Electrolytic Copper,High-Volume Electrolytic Copper
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