Welding Base Metal Groups

Mm in T 6 mm 14 in. P number 1 Group number 2.

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4 to any metal from P-No.

Welding base metal groups. 1 Base metal group according to report cr iso 15608. Specifications Approval of Welding Procedures MATERIAL GROUPING CR ISO 15608 Main Groups are sub-divided into sub groups Based on yield strength for carbon steel in groups 1 2 and 3. This can be found in ASME BPVC Section IX Table QW-442.

Flat Base Metal Part I Material Spec type or grade. P number 1 Group number 3 Now you need your welding procedure be qualified by impact testing as well. Base metal groups for which the welder is not approved.

6 mm thick see Figure 21 Detail A 2 116 in. Base Metal Grouping for Welding Procedure and Performance Qualification 1. 2 mm less than the thickness of base metal for metal 14 in.

101 through P - No. Scope This publication is an extract of AWS B21 Specification for Welding Procedure and Performance Qualification and is identical to Annex D Base Metal Grouping in the 2009 edition of that standard. The category grouping does not imply that base met-als may be substituted for other base metals within the same M-Number without consideration for weldability.

This numbers are assigned as per comparable characteristics of base material such as composition weldability and mechanical properties wherever can be done. WPS Base Metal P-Numbers Allowed by PQR. Steels in Group I and II of Table 31-AWS D11 Qualified Thickness and Diameter Range.

Copper and copper - base alloys. Base metal has been divided into general categories eg M-Numbers 1 1A 3 3A 4 4A etc and further divided into groups within each general category. Steels in Group I and II of Table 31-AWS D11 Base Metal Part II Material Spec type or grade.

42 rows Group 1 - Grades 304 316 317 347 Group 2 - Grades 309 310 Group 3 -. Base Metal Grouping P Number and Group Number P Number. In this situation if you have WPS that has been qualified for P number 1 and Group number 1 cannot be used for another job with P number 1 and group number 2.

This publication supersedes AWS B21-BMG2005. Weld size detailed along edges of material shall be the following. Base metal is parent metal It is that metal in the welding practice that has been cut by the various forms of cutting and other activities then prepared and is to be welded.

Approval ranges for steel groups and subgroups. 41 through P - No. 6 mm or more in thickness see Figure 21 Detail B unless the weld.

31 through P - No. 21 through P - No. Procedure test EN ISO 15614-12012 Test piece base metal group 1 Approval range 1 1 1a 1 2 2 2a 2 1.

X Base metal groups for which the welder is approved. Nickel and nickel - base alloys. A number grouping has been done on the basis of the chemical composition of the deposited weld metal.

Base Metal Grouping see 3 4312 4315 and Table 53 This annex is part of AWS B21B21M-BMG2014 Base Metal Grouping for Welding Procedure and Performance Qualification and includes mandatory elements for use with this standard. However these sub groups are not considered for material grouping in EN ISO 15614-1 the grouping is. Base metal is categorized as P Number and P number is further divided in group numbers based on base metal characteristics.

To reduce the number of procedure qualification required ASME has assigned P Number to different materials. 1 the thickness of the base metal for metal less than 14 in. Any metals of the same P-No.

1 through P - No. Another type of grouping for filler metal or welding rod is the A Number. One set for weld metal and one set for heat affect zone.

Steel and Steel alloys. 4 plus combination between any metal from P-No. The A Number.

104 and P - No. Only Filler Metal categories with the same F-number and same A-number tested in PQR. 1 ASME Section IX QW-424 Qualified WPS Filler Metal Allowed by PQR.

107 and P - No. Please watch the video given below for more clarity on this topic. Aluminum and aluminum - base alloys.

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