Welding rod model

Generally, we see the name of the electrode package on the package as:

TH J 42 6

┬ ┬ ┬ ┬

│ │ │ └ The third digit “2” indicates that the coating type is titanium calcium, DC or AC power.

│ │ └─ indicates that the two digits indicate that the minimum tensile strength of the deposited metal is 42kgf/mm2 (412MP a), and the lowest value of the yield strength of the deposited metal is 43kgf/mm2 (430MPa).

│ └── indicates a structural steel electrode.

└────── indicates the manufacturer's grade of Tianjin Bridge Welding Materials Group Co., Ltd.

According to the national standard GB/T5117-95, it should meet the requirements of E4303 type electrode.

The method for preparing the national standard electrode is as follows:

E 43 0 3

┬ ┬ ┬ ┬

│ │ │ └ Indicates that the electrode coating is of low hydrogen type and is connected by DC reverse welding.

│ │ └─ Indicates that the electrode is suitable for all-position welding.

│ └── Indicates the minimum tensile strength of the deposited metal.

└──── Indicates the electrode.

The electrode type is generally indicated on the welding rod end, and the label is the grade of the electrode.