1. Introduction Our R & D production of high potential magnesium alloy sacrificial anodes (abbreviation: high potential magnesium anode), in accordance with ASTM97-98 standards. Use high-quality high-purity magnesium material production, the use of a specific production process, magnesium alloy sacrificial anodes with excellent electrochemical properties. In the cathodic protection process, magnesium alloy sacrificial anodes consumed evenly, therefore longer life. In actual use, the actual potential measurements ranged between -1.8v -1.85v, so the effect is more obvious target structure protection. Recommended soil resistivity greater than 8000Ω.cm used in high-potential magnesium alloy sacrificial anodes. 2, the chemical composition of magnesium alloy sacrificial anode aluminum anode (max) silicon manganese (max) copper (max) nickel (max) iron (max) Other metal impurities (max) the sum of the other impurities (max) Mg-Mn 0.01 0.50-1.30 0.05 0.02 0.001 0.03 0.05 0.30 3, the electrochemical properties of magnesium alloy sacrificial anode circuit potential (-V) closed circuit potential (-V) actual capacity (Ah / kg) Current efficiency (%) 1.70-1.75 1.58-1.62 1,100 min 50 min 4 Magnesium alloy sacrificial anodes Specifications Model Specifications Model D-magnesium anode weight Kg (ib) magnesium sacrificial anode mm (inch) ABC 9D2 4.082 (9) 69.9 (23/4) 549.3 (215/8) 76.2 (3) 14D2 6.350 ( 14) 69.9 (23/4) 850.9 (331/2) 76.2 (3) 20D2 9.072 (20) 69.9 (23/4) 1212.9 (473/4) 76.2 (3) 9D3 4.082 (9) 88.9 (31/2) 352.4 (137/8) 95.3 (3 3/4) 17D3 7.711 (17) 88.9 (31/2) 641.4 (251/4) 95.3 (3 3/4) 32D5 14.515 (32) 139.7 (51/2) 504.8 ( 197/8) 146.1 (5 3/4) 48D5 21.772 (48) 139.7 (51/2) 765.2 (301/8) 146.1 (5 3/4) 60D4 27.216 (60) 114.3 (41/2) 114.3 (41 / 2) 1460.5 (57 1/2) S-type magnesium alloy sacrificial anodes Specifications Model Specifications weight magnesium alloy sacrificial anodes inch (ho m) ABCD 3S3 1.4 (3) 3 4/5 (96.5) 3 (76.2) 3 (76.2) 4.7 (119.4) 5S3 2.3 (5) 3 4/5 (96.5) 3 (76.2) 3 (76.2) 7.7 (195.6) 9S2 4.1 (9) 2 4/5 (71.1) 2 (50.8) 2 (50.8) 28 (711.2 ) 9S3 4.1 (9) 3 4/5 (96.5) 3 (76.2) 3 (76.2) 13.6 (345.4) 17S2 7.7 (17) 2 4/5 (71.1) 2 (50.8) 2 (50.8) 52.5 (1333.5) 17S3 7.7 (17) 3 4/5 (96.5) 3 (76.2) 3 (76.2) 25.6 (650.2) 17S4 7.7 (17) 4 (101.6) 3 1/5 (81.3) 4 (101.6) 18 (457.2) 20S2 9.1 ( 20) 2 4/5 (71.1) 2 (50.8) 2 (50.8) 62 (1574.8) 32S3 14.5 (32) 3 4/5 (96.5) 3 (76.2) 3 (76.2) 47 (1193.8) 32S5 14.5 (32) 5 (127.0) 4 1/5 (106.7) 5 (127.0) 21.2 (538.5) 40S3 18.1 (40) 3 4/5 (96.5) 3 (76.2) 3 (76.2) 60 (1524.0) 48S5 21.8 (48) 5 ( 127.0) 4 1/5 (106.7) 5 (127.0) 31.5 (800.1) 60S4 27.2 (60) 4 (101.6) 3 1/5 (81.3) 4 (101.6) 62 (1574.8) C-type magnesium alloy sacrificial anodes Specifications Model Diameter (mm) high potential magnesium anode L (mm) AZ63 magnesium anode L (mm) Weight (Kg) C25 75 336 325 2.56 C36 114 202 193 3.7 C41 114 230 220 4.2 C77 114 431 412 7.8 C100 114 560 536 10.2 C145 146 494 472 14.7 C227 178 520 497 22.9 C274 114 1528 1462 28.2