China Spring Diaphram Case for EU

We have rich experience in supplying high quality custom made parts from casting, forging, machining and fabrication process, with a wide range of product line covering areas of oil and gas, water works, fire protection, mining and construction, railway and railcar, ect.
80% of our products are exported to North and South America , European countries, Australia, ect.

GREY IRON International Specification Comparison Chart
CountryStandard & DesignationClass & GradeChinaGB9439-88HT150HT200HT250HT360HT350
USAANSI/ASTM A 48-1983Class 20Class 25Class 35Class 40Class 50
GermanyDIN1691-1964GG 15GG 20GG 25GG 30GG 35GG 40JapanJIS G5501FC 15FC 20FC 25FC 30FC 35
FranceNFA A32-101Ft 15DFt 20DFt 25DFt 30DFt 35DFt 40DItalyUNI 5007G15G20G25G30G35
BritainBS 1452150180260300350400



DUCTILE IRON International Specification Comparison Chart
CountryStandard & DesignationClass & GradeChinaGB1348-88QT400-18
QT400-15QT450-10QT500-7QT600-3QT700-2QT800-2USAANSI/ASTM A53660-40-1865-45-1270-50-580-55-06
100-70-03120-90-0280-55-03GermanyDIN 1693GGG40
GGG50GGG60GGG70GGG80JapanJIS G5502FCD 37FCD40FCD45/50FCD60FCD70FCD80FranceNF A 32-201FGS 370-17FGS 400-12FGS 500-7FGS 600-3FGS 700-2FGS 800-2ItalyUNI 4544GS 370-17GS 400-12GS 500-7GS 600-2GS 700-2GS 800-2BritainBS 2789400/18420/12500/7600/3700/2800/2



ALLOY IRON International Specification Comparison Chart



CARBON STEEL
CountryStandardClass & GradeChinaGBQ235,15,20,25,30,35,40,45,50,55,60,75,80
ZG 200-400,ZG230-450,ZG270-500,ZG310-570USAANSI/ASTM
ASTM 216
A3521010,1020,1025,1030,1040,1045,1050,1060,1070
WCB,WCC,WC6,WC9
LCB,LCCGermanyDINC15,GS-C25,GS-C35JapanJISSCPH44,SCPL11,S20C,S25C,S45CBritainBS3100A1,A2,A3,A4,A5,A6,AM1,AM2,AW1,AW2,AW3



LOW ALLOY STEEL
CountryStandardGrade & ClassChinaGB./ZG30MN,45MN,60MN,20MNSi,35MNSi,45MNSi,20MNMO,20Cr,30Cr,40Cr,
15CrMo,30CrMo,42CrMo,20CrMN,25CRMN,35CrMN,40CrMo,20CrNI,
40CrNi,45CrNi,40CrNiMoUSAANSI/ASTM
ASTM A 2178620,8630,4130,4140,5120,5130,5140,3120,3140,4343,WC6,WC9,C5GermanyDIN 1720028Cr4,41Cr4,15CrMo5,25CrMo4,4`CrMo4,36NiCR6,36CrNiMo4JapanJISSCr420,SCr440,SCM415,SCM430,SCM440,SNC236,SNCM439BritainBS3100B1,B2,B3,B4,B5,B6,B7,BW1,BW2,BW3,BW4



STAINLESS STEEL
CountryStandardGrade & DesignationChinaGB./ZGICr13,ICr15,2Cr13,OCr13,ICr18NI9Ti,OCr18N i9,OcR25Ni20USAANSI/ASTM301,302,303,304,305,308,310,316,410,420,440,304L,316L,CF3,CF3M,
CF8,CF8MGermanyDIN 172001.4310,1.4305,1.4301,1.4543,1.4303,1.4401,1.4406JapanJISSUS301,SUS303,SUS304,SUS310,SUS316BritainBS3100302S25,303S21,305S19,316S16,321S20




COPPER ALLOY
AL.ALLOY



MALLEABLE IRON
CountryStandardGrade & DesignationChinaGB9440KTH 300-06, KTH 350-10KTZ,450-06, KTZ 550-04,
KTZ650-02,KTB 350-04, KTB 380-12, KTB 400-05, KTB 450-07USAANSI/ASTM A22040010, 45008, 45006, 50005, 60004, 70003, 80002, 90001GermanyDIN1692GTS-35-10, GTS-45-06, GTS-55-04, GTS-65-02, GTS-70-02
GTW 35-04, GTW 40-05, GTW 45-07, GTW 38-12JapanJIS G5702FCMB28, FCMB32, FCMB35, FCMB37
FCMW34, FCMW38, FCMW45, FCMW50, FCMW55BritainBS309W410/4, W340/3, B340/12, B310/10, B290/6
P690/2, P570/3, P540/5, P510/4, P440/7