Technical Specifications of Valve Materials in China Chemical Composition and Hardness of Deposited Metal (Continued 4)

Domestic valve material technical standards   Deposited metal chemical composition and hardness (continued 4) Serial number Electrode model Deposited metal chemical composition,% Deposit gold Is a hardness HRC (HB) C Mn Si Cr Ni Mo W V Nb Co Fe B S P other element Total amount 43 EDD-B2- ×× 0.60 ~ 1.00 0.40 ~ 1.00 1.00 3.00 ~ 5.00 - 7.00 ~ 9.50 0.50 ~ 1.50 0.50 ~ 1.50 - - margin - 0.035 0.035 1.00 - 44 EDD-C- ×× 0.30 ~ 0.50 0.60 0.80 5.00 ~ 9.00 1.00 ~ 2.50 0.80 ~ 1.20 0.03 0.04 55 45 EDD-D- ×× 0.70 ~ 1.00 - - 3.80 ~ 4.50 - 17.00 ~ 19.50 1.00 ~ 1.50 0.035 1.50 46 EDZ-A0- ×× 1.50 ~ 3.00 0.50 ~ 2.00 1.50 4.00 ~ 8.00 1.00 - - 0.035 1.00 - 47 EDZ-A1- ×× 2.50 ~ 4.50 - - 3.00 ~ 5.00 3.00 ~ 5.00 - - - 55 48 EDZ-A2- ×× 3.00 ~ 4.50 1.50 2.50 26.00 ~ 34.00 2.00 ~ 3.00 3.00 60 49 EDZ-A3- ×× 4.80 ~ 6.00 - - 35.00 ~ 40.00 4.20 ~ 5.80 - 50 EDZ-B1- ×× 1.50 ~ 2.20 - - 8.00 ~ 10.00 1.00 50 51 EDZ-B2- ×× 3.00 4.00 ~ 6.00 8.50 ~ 14.00 3.00 60   【Print】 【Close】