頁碼 焊條牌號 藥皮類型 焊接電源 主要用途 1 CHE502WCu 鈦鈣型 交直流 09MnTiPCu、09CuTiRE等鐵道車輛用耐侯鋼的焊接 2 CHE505Mo 纖維素鈉型 直流 用于壓力管道及同類材料結(jié)構(gòu)的打底焊 3 CHE506NiLH 低氫型 交直流 焊接低合金鋼重要結(jié)構(gòu)，如海上平臺、船舶等 4 CHE506WCu 低氫型 交直流 09MnTiPCu、09CuTiRE等鐵道車輛用耐侯鋼的焊接 5 CHE507NiLH 低氫型 直流 焊接低合金鋼重要結(jié)構(gòu)如鍋爐、海上平臺等 6 CHE507RH 低氫型 直流 焊接低合金鋼重要結(jié)構(gòu)如鍋爐、海上平臺等 7 CHE507CuP 低氫型 直流 焊接銅磷系統(tǒng)抗大氣，海水腐蝕鋼 8 CHE507MnMo 低氫型 直流 焊接抗硫化氫鋼如14MnMoNbCu等 9 CHE507CrNi 低氫型 直流 用于耐海水腐蝕鋼的焊接 10 CHE508Ni 低氫型 交直流 用于相同等級低合金鋼結(jié)構(gòu)的焊接 11 CHE557 低氫型 直流 焊接中碳鋼和15MnTi等低合金鋼 12 CHE557MoV 低氫型 直流 焊接中碳鋼及相應(yīng)強度低合金鋼 13 CHE62CFLH 低氫型 直流 焊接62CF碳鋼及相應(yīng)強度低合金鋼 14 CHE606 低氫型 交直流 焊接中碳鋼及相應(yīng)強度低合金鋼 15 CHE607 低氫型 直流 焊接中碳鋼及相應(yīng)強度低合金鋼 16 CHE607Ni 低氫型 直流 焊接再熱裂傾向的鋼 17 CHE707 低氫型 直流 焊接相應(yīng)強度的低合金鋼 18 CHE707Ni 低氫型 直流 焊接相應(yīng)強度的低合金鋼 19 CHE707MnMo 低氫型 直流 焊接相應(yīng)強度的低合金鋼 20 CHE757 低氫型 直流 焊接相應(yīng)強度的低合金鋼 21 CHE758 低氫型 交直流 焊接相應(yīng)強度的低合金鋼 22 CHE80C 低氫型 直流 焊接WEL-TEN80C鋼 23 CHE857 低氫型 直流 焊接相應(yīng)強度的低合金鋼 24 CHE857Cr 低氫型 直流 焊接相應(yīng)強度的低合金鋼 25 CHE857CrNi 低氫型 直流 E級鋼焊接 26 CHE858 低氫型 交直流 焊接相應(yīng)強度的低合金鋼 27 CHH107 低氫型 直流 用于工作溫度510℃以下的珠光體耐熱鋼焊接 28 CHH108 低氫型 交直流 用于工作溫度510℃以下的珠光體耐熱鋼焊接 29 CHH202 鈦鈣型 交直流 用于工作溫度510℃以下的珠光體耐熱鋼焊接 30 CHH207 低氫型 直流 同CHH202 31 CHH307 低氫型 直流 用于工作溫度520℃以下的珠光體耐熱鋼焊接 32 CHH308 低氫型 交直流 用于工作溫度520℃以下的1%鉻，0.5%鉬低合金鋼焊接 33 CHH317 低氫型 直流 用于工作溫度540℃以下的珠光體耐熱鋼焊接 34 CHH327 低氫型 直流 用于工作溫度570℃以下的珠光體耐熱鋼焊接 35 CHH337 低氫型 直流 用于工作溫度570℃以下的珠光體耐熱鋼焊接 36 CHH347 低氫型 直流 用于工作溫度620℃以下的耐熱鋼焊接 37 CHH347A 低氫型 直流 用于工作溫度620℃以下的耐熱鋼焊接 38 CHH407 低氫型 直流 用于Cr2.25Mo珠光體耐熱鋼焊接 39 CHH417 低氫型 直流 用于620℃以下的（Ⅱ11）鋼焊接 40 CHL107 低氫型 直流 用于-100℃低溫用鋼的焊接,如3.5Ni鋼 41 CHL707r 低氫型 直流 用于-70℃低溫用鋼的焊接,如2.5Ni鋼 42 CHL907 低氫型 直流 用于-90℃低溫用鋼的焊接,如3.5Ni鋼 注：根據(jù)BG/T5118-1995低合金鋼焊條規(guī)定： ⒈1.Exxxx?G型焊條其熔敷金屬化學(xué)成份只要1個元素符合表中規(guī)定即可。 ⒉2.Exxxx?G型焊條其夏比V型缺口沖擊吸收功不作規(guī)定，可根據(jù)雙方協(xié)議要求而定。 低合金鋼焊條使用說明 根據(jù)我國以往焊條分類習(xí)慣，焊條國家標(biāo)準(zhǔn)GB/T5118?1995《低合金鋼焊條》包含以下三類： ⒈50公斤級（除熔敷金屬Mn?Si系）以上的結(jié)構(gòu)鋼焊條； ⒉鉬和鉻鉬珠光耐熱鋼焊條； ⒊低溫鋼焊條。 低合金鋼焊條的選用，通常是根據(jù)鋼材的化學(xué)成份、力學(xué)性能、抗裂性能等要求。同時還要從焊接結(jié)構(gòu)形狀、工作條件，受力情況和焊接設(shè)備等方面，進行綜合考慮。必要時，需進行焊接性能試驗來確定焊條和采取必要的工藝措施。 ⒈低合金結(jié)構(gòu)鋼焊條的使用 一般依鋼材的強度等級來選用相應(yīng)的焊條，同時還需要根據(jù)鋼材焊接性，母材成分的過渡，焊接結(jié)構(gòu)尺寸、形狀、坡口和受力情況等因素，進行綜合考慮，在焊縫冷卻速度較大，使強度增高，焊縫接頭容易產(chǎn)生裂縫的不利情況下，往往可選用比母材強度低一些的焊條，如遇厚板多層焊或焊后進行正火處理等情況，則需防止焊縫強度過低的現(xiàn)象。對要求塑性好、沖擊韌性高、低溫性能好、抗裂性能強者，選用堿性后高韌性的焊條，對中碳鋼或鑄鋼的焊接一般可選用超低氫型，高韌性的焊條或輔以預(yù)熱等工藝措施。 ⒉鉬和鉻耐熱鋼焊條的使用 珠光體耐熱鋼中常用的合金元素有鉻、鉬、釩、鈮等以適應(yīng)不同的工作要求。由于鋼中碳和合金元素的共同作用，使其在焊接時極易形成淬硬組織，焊接性能較差，應(yīng)此，珠光體耐熱鋼一般焊前進行預(yù)熱，焊后進行回火處理。 在異種鋼焊接時，一般選用與中間成分相適應(yīng)的焊接材料，并應(yīng)根據(jù)其中焊接性差的材料，選用合適的預(yù)熱溫度和焊后熱處理條件。 在單獨使用或用于厚壁管焊接時，應(yīng)選用低氫耐熱鋼焊條。 ⒊低溫鋼焊條的使用 根據(jù)低溫液化氣體生產(chǎn)工藝流程的特點，低穩(wěn)鋼按不同的使用溫度（?40℃、?70℃、?90℃、?100℃、?196℃、?253℃）分級使用，并選取相應(yīng)的焊接材料。 WeldingRodsforLowAlloySteel低合金鋼焊條 ItemCodeTypeofCoveringAWSA5.5WeldingPositionTypeofCurrentStandard&TypicalChemicalCompositionofDepositedMetal(%)Standard&TypicalMechanicalPropertiesofDepositedMetalApplications CMnSiSPCrNiMoVCuYieldPoint ReL(MPa)TensileStrength Rm(MPa)ElongationA(%)AkvValue(J) CHE505Highcellulose potassiumAWSA5.1 E7011-GVD,F, OH,HACorDC? 0.097≥1.00 0.68≥0.80 0.20≤0.03 0.011≤0.03 0.019≥0.30 0.018≥0.50 0.005≥0.20 0.50≥0.10 0.011≥0.20 0.20≥390 425≥490 530≥22 30__ -30℃70Suitableforverticaldownweldingstructuresmadeofcarbonsteelsandlowalloysteels,e.g.pipes. CHE505GHighcellulose sodiumE7010-GVD,F,OH,HDC+? 0.098≥1.00 0.44≥0.80 0.21≤0.03 0.010≤0.03 0.013≥0.30 0.018≥0.50 0.004≥0.20 0.49≥0.10 0.010≥0.20 0.21≥390 420≥490 535≥22 28__ -30℃81Itissuitableforrootpasses,hotpasses,fillerandcoverpassesaswellasforcappingwelding. CHE505GXHighcellulose sodiumE7010-P1VD,F,OH,HDC+≤0.20 0.011≤1.20 0.57≤0.60 0.31≤0.03 0.009≤0.03 0.013≤0.030 0.017≤1.00 0.10≤0.50 0.432≤0.10 0.010?≥415 470≥490 540≥22 22-30℃≥27 50Itissuitableforverticaldownweldingandbackingweldingforrootpasses,hotpasses,fillerandcoverpassesaswellasforcappingofhighpresspipelinesandsimilarstructures. CHE505MoHighcellulose sodiumE7010-A1VD,F,OH,HDC+≤0.12 0.074≤0.60 0.33≤0.40 0.11≤0.03 0.010≤0.03 0.009??0.40-0.65 0.48??≥390 470≥490 580≥22 24__ -20℃70Itissuitableforrootpasses,hotpasses,fillerandcoverpassesweldingaswellasforcappingwelding. CHE506NiLHLowhydrogen potassiumE7016-GF,V, OH,HAC≥70V orDC+? 0.070≥1.00 1.12≥0.80 0.54≤0.03 0.007≤0.03 0.018≥0.30 0.014≥0.50 0.54≥0.20 0.004≥0.10 0.012≥0.20 0.22≥390 450≥490 550≥22 30__ -30℃158Weldingimportantmildsteelandlowalloysteelstructures,suchasoffshoredrillingplatforms,bridges,highpressurevessels,ships,etc. CHE507FeNiLowhydrogen sodiumE7015-GF,V, OH,HDC+? 0.067≥1.00 1.20≥0.80 0.45≤0.03 0.011≤0.03 0.015≥0.30 0.010≥0.50 1.74≥0.20 0.005≥0.10 0.011≥0.20 0.22≥390 450≥490 550≥22 27__ -40℃100Forweldingpressvesselsfabricatedbymediumcarbonlowtemperaturesteels.Theweldmetalshowsasatisfactorylowtemperatureimpactvalue. CHE507GXLowhydrogen sodiumE7015-GF,V, OH,HDC+? 0.075≥1.00 1.37≥0.80 0.27≤0.03 0.004≤0.03 0.016≥0.30 0.009≥0.50 0.054≥0.20 0.011≥0.10 0.010≥0.20 0.22≥390 450≥490 560≥22 30__ -20℃122ForweldingpipelinesmadeofX60steelandstructuresfabricatedbylowS&Pandlowtemperaturetoughnesssteels. CHE507NiLHLowhydrogen sodiumE7015-GF,V, OH,HDC+? 0.077≥1.00 1.40≥0.80 0.50≤0.03 0.011≤0.03 0.018≥0.30 0.028≥0.50 0.51≥0.20 0.001≥0.10 0.010≥0.20 0.010≥390 450≥490 550≥22 30__ -20℃110Weldingimportantmildsteelandlowalloysteelstructures,suchasbridges,offshoredrillingplatformsandhighpressurevesselsetc. CHE507RHLowhydrogen sodiumE7015-GF,V, OH,HDC+? 0.080≥1.00 1.36≥0.80 0.47≤0.03 0.010≤0.03 0.010≥0.30 0.025≥0.50 0.50≥0.20 0.001≥0.10 0.012≥0.20 0.11≥390 430≥490 530≥22 32__ -40℃130Forweldingimportantprojectsofboilers,highpressvessels,bridges,skyscrapers,offshoredrillingplatformsaswellasnuclearstructures. CHS507SHLowhydrogen sodiumE7015-GVD,F,OH,HDC+? 0.082≥1.00 1.44≥0.80 0.47≤0.03 0.007≤0.03 0.008≥0.30 0.023≥0.50 0.013≥0.20 0.001≥0.10 0.010≥0.20 0.016≥390 380≥490 510≥22 32__ -30℃150Suitableforfabricatingspecialhighpressurevesselsthatmadebyalloysteelsof16MnR(HIC),suchashightemperatureseparators,circulatorsofliquidhydrogen,etc. CHE508NiLowhydrogen potassiumE7018-GF,V, OH,HAC≥70V orDC+? 0.067≥1.00 1.30≥0.80 0.50≤0.03 0.008≤0.03 0.012≥0.30 0.012≥0.50 1.20≥0.20 0.003≥0.10 0.010≥0.20 0.015≥390 470≥490 580≥22 28__ -40℃100Weldinglowalloysteelstructureswithcorrespondinggradeinstrength. CHE555GHighcellulosesodiumE8010-GVD,F,OH,HDC+? 0.13≥1.00 0.66≥0.80 0.27≤0.03 0.010≤0.03 0.014≤0.30 0.041≥0.50 0.50≥0.20 0.31≥0.10 0.012≥0.20 0.12≥460 470≥550 580≥19 25__ -30℃60SuitableforfabricatinghugediameterpipelinesmadebyX70orX75gradesteels. CHE555GXHighcellulosesodiumE8010-P1VD,F,OH,HDC+≤0.20 0.099≤1.20 0.60≤0.60 0.18≤0.030 0.012≤0.030 0.011≤0.30 0.013≤1.00 0.64≥0.20 0.43≤0.10 0.010?≥460 510≥550 600≥19 22-30℃≥27 60SuitableforfabricatinghugediameterpipelinesmadebyX70orX75gradesteels. CHE557HighcellulosesodiumE8015-GF,V, OH,HDC+? 0.075≥1.00 1.25≥0.80 0.50≤0.03 0.012≤0.03 0.018≥0.30 0.005≥0.50 0.003≥0.20 0.003≥0.10 0.010≥0.20 0.016≥460 480≥550 590≥19 24__ -40℃100Weldingmediumcarbonsteelstructuresandlowalloysteelstructures. CHE557GXHighcellulosesodiumE8015-GF,V, OH,HDC+? 0.077≥1.00 1.42≥0.80 0.29≤0.03 0.004≤0.03 0.016≥0.30 0.005≥0.50 0.004≥0.20 0.001≥0.10 0.009≥0.20 0.011≥460 490≥550 600≥19 26__ -40℃100ForweldingpipelinesmadeofX65steelandstructuresfabricatedby lowS&Pandlowtemperaturetoughnesssteels. CHE557NiLowhydrogen sodiumE8015-GF,V, OH,HDC+? 0.069≥1.00 1.25≥0.80 0.25≤0.03 0.013≤0.03 0.018≥0.30 0.007≥0.50 0.90≥0.20 0.002≥0.10 0.011≥0.20 0.010≥460 510≥550 610≥19 26__ -40℃110Usedforweldingstructuresmadebymediancarbonsteelaswellaslowalloysteels,suchaspressurevessels,bridgesetc. CHE557MoVHighcellulosesodiumE8015-GF,V, OH,HDC+? 0.075≥1.00 1.60≥0.80 0.22≤0.03 0.012≤0.03 0.014≥0.30 0.033≥0.50 0.005≥0.20 0.30≥0.10 0.037≥0.20 0.030≥460 540≥550 630≥19 24__ -40℃80Mainlyusedforfabricatinghullofhugehydraulicturbineatsiteaswellasweldinghighcrackingresistancestructures. CHE557RHLowhydrogen sodiumE8015-GF,V, OH,HDC+? 0.075≥1.00 1.25≥0.80 0.22≤0.03 0.008≤0.03 0.016≥0.30 0.023≥0.50 0.76≤0.20 0.21≥0.10 0.018≥0.20 0.020≥460 500≥550 590≥19 26__ -40℃120Forweldingstructuresofpressvessels,bridges,water-guidingpipesofhydro-electicpowerstationaswellassteelstructuresofoceanproject. CHE558IronpowderlowhydrogenpotassiumE8018-GF,V, OH,HAC≥70V orDC+? 0.080≥1.00 1.12≥0.80 0.30≤0.03 0.012≤0.03 0.030≥0.30 0.010≥0.50 0.09≥0.20 0.003≥0.10 0.015≥0.20 0.010≥460 455≥550 575≥19 27__ -40℃98Suitableforweldingstructuresfabricatedbymediumcarbonsteelsaswellaslowalloysteel,suchas15MnT,15MnV,etc. CHE558GXIronpowderlowhydrogenpotassiumE8018-P2F,V, OH,HAC≥70V orDC+≤0.12 0.0790.90-1.70 1.43≤0.80 0.34≤0.03 0.003≤0.03 0.016≤0.20 0.020≤1.00 0.023≤0.50 0.25≤0.05 0.011?≥460 520≥550 620≥19 21-30℃≥27 130ForweldingpipelinesmadeofX65,X70steelandstructuresfabricatedbylowS&Pandlowtemperaturetoughnesssteels. CHE558NiIronpowderlowhydrogenpotassiumE8018-C3VD,F,OH,HAC≥70V orDC+≤0.12 0.0690.40-1.25 1.05≤0.80 0.63≤0.03 0.010≤0.03 0.015≤0.15 0.0290.80-1.10 0.96≤0.35 0.22≤0.05 0.010?470-550 520≥550 630≥24 26-40℃≥27 65Suitableforweldingstructuresmadebysamegradelowalloysteels,suchas15MnTi,15MnV,etc. CHE606Lowhydrogen potassiumE9016-GF,V, OH,HAC≥70V orDC+? 0.072≥1.00 1.58≥0.80 0.47≤0.03 0.018≤0.03 0.009≥0.30 0.013≥0.50 0.08≥0.20 0.34≥0.10 0.016≥0.20 0.012≥530 590≥620 680≥17 24__ -30℃80Weldingmediumcarbonsteelandlowalloyhightensilesteelstructureswithcorrespondinggradeinstrength,ACcanbeusedincaseswherenoDCweldingsetisavailable. CHE607Lowhydrogen sodiumE9015-GF,V, OH,HDC+? 0.084≥1.00 1.55≥0.80 0.50≤0.03 0.021≤0.03 0.011≥0.30 0.031≥0.50 0.008≥0.20 0.34≥0.10 0.010≥0.20 0.010≥530 580≥620 680≥17 25__ -30℃90Weldingmediumcarbonsteelandlowalloysteelstructureswithcorrespondinggradestrength. CHE607CGLowhydrogen sodiumE9015-GF,V, OH,HDC+? 0.072≥1.00 1.51≥0.80 0.35≤0.03 0.005≤0.03 0.012≥0.30 0.031≥0.50 1.00≥0.20 0.24≥0.10 0.010≥0.20 0.010≥530 550≥620 650≥17 25__ -30℃90Itissuitableforwelding590MPagradeflawlesssteelsespeciallywidelybeusedonthehugepetroleumstoragetanks. CHE607GXLowhydrogen sodiumE9015-GF,V, OH,HDC+? 0.079≥1.00 1.38≥0.80 0.30≤0.03 0.004≤0.03 0.014≥0.30 0.010≥0.50 0.08≥0.20 0.010≥0.10 0.013≥0.20 0.012≥530 530≥620 630≥17 24__ -20℃160ForweldingpipelinesmadeofX70steelandstructuresfabricatedbylowS&Pandlowtemperaturetoughnesssteels. CHE607NiLowhydrogen sodiumE9015-GF,V, OH,HDC+? 0.080≥1.00 1.50≥0.80 0.50≤0.03 0.011≤0.03 0.019≥0.30 0.026≥0.50 0.90≥0.20 0.35≥0.10 0.010≥0.20 0.010≥530 580≥620 680≥17 24__ -30℃90Forweldingimportantstructuressuchashullofnuclearreactor,steamgeneratorofboilers,chemicalcontainers,etc. CHE607RHLowhydrogen sodiumE9015-GF,V, OH,HDC+? 0.072≥1.00 1.51≥0.80 0.35≤0.03 0.008≤0.03 0.014≥0.30 0.008≥0.50 1.00≥0.20 0.24≥0.10 0.009≥0.20 0.010≥530 550≥620 650≥17 25__ -50℃80Forweldingstructuresofpressvessels,bridges,water-guidingpipesofhydro-electicpowerstationaswellassteelstructuresofoceanproject,especiallyingoodmatchwithsteelCF60&CF62. CHE608IronpowderlowhydrogenpotassiumE9018-GF,V, OH,HAC≥70V orDC+? 0.070≥1.00 1.45≥0.80 0.44≤0.03 0.013≤0.03 0.015≥0.30 0.010≥0.50 0.025≥0.20 0.33≥0.10 0.010≥0.20 0.013≥530 550≥620 640≥17 24__ -30℃90Suitableforweldingstructuresfabricatedbymediumcarbonsteelsaswellaslowalloysteels,suchas15MnVN,etc. CHE62CFLHLowhydrogen sodiumE9015-GF,V, OH,HDC+? 0.056≥1.00 1.46≥0.80 0.30≤0.03 0.010≤0.03 0.020≥0.30 0.030≥0.50 0.98≥0.20 0.35≥0.10 0.010≥0.20 0.010≥530 560≥620 655≥17 25__ -20℃119MainlyforFabricatingofimportantstructuresmadebymediumthick62CFsteelplate CHE657GXLowhydrogen sodiumE9015-GF,V, OH,HDC+? 0.062≥1.00 1.34≥0.80 0.30≤0.03 0.005≤0.03 0.015≥0.30 0.025≥0.50 1.80≥0.20 0.16≥0.10 0.011Cu≤0.30 0.08≥530 535≥620 650≥17 30__ -20℃150SuitableforfabricatinghugediameterpipelinesmadebyX80gradesteels,whichrequiredextralowS&Paswellaslowtemperaturetoughness. CHE658Ironpowder,lowhydrogenE9018MF,V, OH,HDC+≤0.10 0.0800.60-1.25 1.01≤0.80 0.50≤0.030 0.011≤0.030 0.017≤0.15 0.0251.40-1.80 1.62≤0.35 0.16≤0.05 0.025?540-620 590≥620 680≥24 27-50℃≥27 75Suitableforweldingimportantstructuressuchashullofnuclearreactor,steamgeneratorofboilers,chemicalcontainers,etc.especiallyformilitaryengineeringstructures. CHE707Lowhydrogen sodiumE10015-D2F,V, OH,HDC+≤0.15 0.1021.65-2.00 1.91≤0.60 0.42≤0.03 0.008≤0.03 0.019?≤0.90 0.0090.25-0.45 0.37??≥600 670≥690 760≥16 23-50℃≥27 69Weldingmediumcarbonsteelandlowalloysteelstructureswithcorrespondinggradestrength. CHE707NiLowhydrogen sodiumE10015-GF,V, OH,HDC+? 0.067≥1.00 1.45≥0.80 0.34≤0.03 0.010≤0.03 0.020≥0.30 0.50≥0.50 1.70≥0.20 0.30≥0.10 0.010≥0.20 0.010≥600 680≥690 770≥15 20__ -40℃90Weldinglowalloysteelstructureswithcorrespondinggradeofstrength. CHE707RHExtralow hydrogensodiumE10015-GF,V, OH,HDC+? 0.072≥1.00 1.50≥0.80 0.40≤0.03 0.010≤0.03 0.012≥0.30 0.005≥0.50 1.50≥0.20 0.40≥0.10 0.012≥0.20 0.010≥600 650≥690 740≥15 22__ -50℃70Suitableforweldingimportantstructuresfabricatedbylowalloysteel,e.g.highpressurevessels,bridgesaswellasoceanprojectsetc. CHE708Ironpowder,lowhydrogenE10018MF,V, OH,HDC+≤0.10 0.0650.75-1.70 1.04≤0.60 0.34≤0.030 0.010≤0.030 0.020≤0.35 0.0521.40-2.10 1.710.25-0.50 0.33≤0.05 0.025?≥690 710610-690 670≥20 24-50℃≥27 80Weldinglowalloysteelstructureswithcorrespondinggradeofstrength,e.g.militaryengineeringprojects. CHE757Lowhydrogen sodiumE11015-GF,V, OH,HDC+? 0.070≥1.00 1.85≥0.80 0.40≤0.03 0.012≤0.03 0.016≥0.30 0.006≥0.50 0.010≥0.20 0.50≥0.10 0.07≥0.20 0.015≥670 680≥760 780≥15 18__ 20℃100Forweldingimportantstructuresmadeby740MPagradeormorelowalloysteels. CHE757NiLowhydrogen sodiumE11015-GF,V, OH,HDC+? 0.060≥1.20 1.60≥0.80 0.20≤0.03 0.014≤0.03 0.014≥0.30 0.025≥0.50 2.35≥0.20 0.52≥0.10 0.010≥0.20 0.010≥670 720≥760 810≥15 21__ -40℃60Forweldingimportantstructuresfabricatedbysamegradelowalloysteels,e.g.WEL-TEN80steel. CHE758IronpowderlowhydrogenpotassiumE11018-GF,V, OH,HAC≥70V orDC+? 0.070≥1.00 1.45≥0.80 0.32≤0.03 0.011≤0.03 0.020≥0.30 0.54≥0.50 1.76≥0.20 0.33≥0.10 0.010≥0.20 0.010≥670 690≥760 790≥15 20__ -50℃50Forweldingimportantstructuresmadeby740MPagradeormorelowalloysteelsas15MnMoVN,WEL-TEN80,etc. CHE758NiIronpowder,lowhydrogenE11018MF,V, OH,HDC+≤0.10 0.0701.30-1.80 1.64≤0.60 0.32≤0.030 0.010≤0.030 0.019≤0.40 0.341.25-2.50 1.760.25-0.50 0.32≤0.05 0.010?680-760 700≥760 775≥20 23-50℃≥27 50Forweldingimportantstructuresmadeby740MPagradeormorelowalloysteels,especiallyformilitaryengineeringprojects. CHE80CLowhydrogen sodiumE11015-GF,V, OH,HDC+? 0.070≥1.00 1.70≥0.80 0.40≤0.03 0.010≤0.03 0.020≥0.30 0.020≥0.50 2.22≥0.20 0.08≥0.10 0.030≥0.20 0.030≥670 720≥760 850≥15 18__ -40℃70Forweldingimportantstructuresmadeby780MPagradeormorelowalloysteelsasWEL-TEN80C,ASTMA514andA517,etc. CHE807Lowhydrogen sodiumE11015-GF,V, OH,HDC+? 0.060≥1.00 1.50≥0.80 0.33≤0.03 0.013≤0.03 0.014≥0.30 0.005≥0.50 1.60≥0.20 0.50≥0.10 0.020≥0.20 0.013≥670 760≥760 860≥15 19__ 20℃60Suitableforweldingstructuresmadebysamegradelowalloysteels,suchas14MnMoNbB,etc. CHE807RHExtralow hydrogensodiumE11015-GF,V, OH,HDC+? 0.0501.30-1.80 1.50≥0.80 0.32≤0.03 0.010≤0.03 0.016≥0.30 0.38≥0.50 1.60≥0.20 0.48≥0.10 0.007≥0.20 0.010≥670 760≥760 860≥15 19__ -40℃70Forweldingimportantstructuresofpressvessels,bridges,water-guidingpipesofhydro-electicpowerstationaswellassteelstructuresofoceanproject,especiallyingoodmatchwithsteelCF80. CHE857Lowhydrogen sodiumE12015-GF,V, OH,HDC+? 0.065≥1.00 1.80≥0.80 0.35≤0.03 0.009≤0.03 0.016≥0.30 0.004≥0.50 0.011≥0.20 0.70≥0.10 0.009≥0.20 0.007≥740 800≥830 900≥14 19__ 20℃80Forweldingimportantstructuresmadeby830MPagradeormorelowalloysteels. CHE857CrLowhydrogen sodiumE12015-GF,V, OH,HDC+? 0.068≥1.00 1.85≥0.80 0.37≤0.03 0.009≤0.03 0.015≥0.30 1.00≥0.50 0.011≥0.20 0.680≥0.10 0.063≥0.20 0.063≥740 810≥830 920≥14 19__ 20℃80Forweldinglowalloypressurevesselsandotherstructuresmadeby830MPagradeormorelowalloysteels. CHE857CrNiLowhydrogen sodiumE12015-GF,V, OH,HDC+? 0.058≥1.00 1.40≥0.80 0.29≤0.03 0.014≤0.03 0.018≥0.30 1.6≥0.50 2.50≥0.20 0.56≥0.10 0.010≥0.20 0.010≥740 850≥830 960≥14 15__ -50℃60Forweldingimportantstructuresmadeby830MPagradeormorelowalloysteels,suchasWEL-TEN80andorWEL-TEN80C. CHE858IronpowderlowhydrogenpotassiumE12018-GF,V, OH,HAC≥70V orDC+? 0.060≥1.00 2.10≥0.80 0.35≤0.03 0.010≤0.03 0.018≥0.30 0.75≥0.50 2.20≥0.20 0.52≥0.10 0.010≥0.20 0.010≥740 800≥830 960≥14 19__ -50℃45Forweldingimportantstructuresmadeby830MPagradeormorelowalloysteels,suchasWEL-TEN80andorWEL-TEN80C. CHE907CrLowhydrogen sodiumE12015-GF,V, OH,HDC+? 0.083≥1.00 2.04≥0.80 0.35≤0.03 0.004≤0.03 0.012≥0.30 1.09≥0.50 0.010≥0.20 0.71≥0.10 0.008≥0.20 0.012≥740 840≥830 1,005≥14 18?Itissuitableforvesselsandstructuresfabricatedby880MPagradelowalloysteelsormore.