What Do The Numbers On A Welding Rod Mean

The third number of 1 however indicates that you can use these welding electrodes in all four positions of vertical horizontal flat and overhead.

The last number 3 refers to the type of slag flux composition and power supply used for this electrode. As a result the higher the number the stronger the electrode. The last 2 digits together are for the coating and welding current. In this designation system the first two or three digits indicate the tensile strength of the welded material which is measured in kpi or kilo pounds per square inch.

This can be found in asme bpvc section ix table qw 442. If the classification starts with 60 for example it means that the welding rod can withstand 60 000 pounds per square inch. E308 l 17 this character may or may not be present and indicates the percentage of carbon in the filler material. The aws assigns four or five digits after the letter.

This is measured in thousands of pounds per square inch. In this case that is 60 so the maximum tensile strength of the 6011 and 6013 electrode is 60 000 psi. After that will come an h number which indicates how much hydrogen will be diffused when you use the rod. It is the maximum amount of force a material can take without breaking.

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Note that the filler material doesn t necessarily have to match the material being welded. E 6011 or perhaps e 7020. The first letter number combination indicates the chemistry of the weld and will look like a1 b1 b2 b3. Most rods that one runs across at the farm supply store will be labeled something like this.

The tensile strength of a welding rod can be determined by the first two numbers in the electrode s name. The third welding number shows the directions in which you can use the electrodes. For example if it s a horizontal or vertical weld etc a number 1 as in 6010 means it is an all position welding rod and is okay for any position. The e7018 welding rod is one of the several electrode types with aws designation.

The following two numbers indicate the tensile strength of the material in the rod when the weld is stress relieved. The first two welding rod numbers stand for the tensile strength of the filler material. The numerical value here represents the filler metal that the consumable is made of and will be some grade of stainless steel. Please watch the video given below for more clarity on this topic.

The next number is the position of the weld. For a 6010 rod the coating and current are dictated by the 10. The first two numbers refer to the tensile strength or how much stress the weld bead can withstand. Another type of grouping for filler metal or welding rod is the a number.

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For example the lincoln 7018 welding rod numbers show that the tensile strength is 70 000 psi. 60 stands for 60 000 psi 70 for 70 000 psi etc.