J107Cr low alloy high strength steel welding electrodes J507CrNi power card 
 Found: GB E10015-G 
 Description: 
 J107Cr is a low hydrogen sodium type high-strength low-alloy steel electrodes. DC reverse, can be all-position welding. 
 Uses: 
 For tensile strength equal to 980MPa grade high strength low alloy steel. Such as 30Cr-MnSi, 35CrMo. 
 Note: 
 Must be approved before welding electrode baking 350 ℃ 1h, with the drying with the use. 
 Remove impurities before welding, preheating to 300 ℃. 
 Weldment after welding should be quenched, 880 ℃ 520 ℃ oil quenching and tempering air cooling. 
 Chemical composition of deposited metal: (%) 
 C Mn Si SP Cr Mo V 
 ≤ 0.15 ≥ 1.00 0.30-0.70 ≤ 0.035 ≤ 0.035 1.50-2.20 0.40-0.80 0.08-0.16 
 Mechanical Properties of Deposited Metal 
 Pilot project tensile strength (σb) 
 MPa yield point (σs) 
 MPa Elongation (δ5) 
 % Impact energy Akv (J) 
 Room temperature 
 Guaranteed value ≥ 980 ≥ 880 ≥ 12 - 
 General Results 1000-1100 ≥ 900 15-23 ≥ 27 
 Coating moisture content: ≤ 0.15% 
 X-ray testing requirements: I Class 
 Reference Current: (DC +) 
 Electrode diameter (mm) 2.5 3.2 4.0 5.0 
 Welding current (A) 60-90 80-110 130-170 160-200