The above are trade names which are probably for a NiCrMo alloy. More than likely they are the same filler metal. One way to check is to read on the label. This will indicate an AWS Classification (ER-NiCrMo-4) and also and AWS Specification SFA 5.?. This will let you know if they are different. With Shielded metal arc electrodes, the useability of the electrodes varies between manufacturers even though the AWS classification is the same. With solid wire, I've never noticed a difference.
