ASME Definitions, Consumables, Welding Positions
ASME P Material Numbers Explained
ASME has adopted their own designation for welding processes, which are very different from the IS definitions adopted by EN!"#$%&
Designation Description '( xyfuel )as (elding SMA( Shielded Metal Arc (e (elding lding *MMA+ SA( Submerged Arc (elding )MA( )as Me Metal Arc (elding *M *MI)MA)+ '-A( 'lux -ored (ire ).A( )as .ungsten Arc (elding *.I)+ PA( Plasma Arc (elding
Straight polarity / Electrode 0ve 1everse polarity / Electrode 2ve ASME AS ME F Numb N umbers ers
' )eneral 3escription Number 4 5eav 5eavy y ruti rutile le coa coate ted d iron iron pow powde derr elec electr trod odes es 60 60 A7& A7&4 4 6 E8#! E8#!" " ! Most Most 1uti 1utile le cons consum umab able less suc such h as as 60 60 A7&4 7&4 6 E$#4 E$#4% % % -ell -ellul ulos osic ic elec electr trod odes es such such as 60 A7&4 7&4 6 E$#4 E$#44 4 " 9asi 9asicc coat coated ed ele elect ctro rode dess such such as 6 A7&4 7&4 6 E8# E8#4$ 4$ and and E8# E8#4: 4: 7 5igh 5igh allo alloy y auste austenit nitic ic sta stainl inles esss steel steel and and dupl duplex ex 60 60 A7&" A7&" 6 E%4$ E%4$;04 ;04$ $ $ Any Any ste steel el soli solid d or or cor cored ed wire wire *wit *with h flu flux x or or met metal al++ !< Alum lumini inium and its its alloy loys %< -opper an and it its al alloys "< Nic=el alloys 7< .itanium $< >irconium 8< 5ard 'acing verlay Note60 < represents any number # to ?
ASME AS ME A Numbe Nu mbers rs
.hese refer to the chemical analysis of the deposited weld and not the parent material& .hey only apply to welding procedures in steel materials&
A4 Plain unalloyed carbon manganese steels& A! to A" ;ow alloy steels containing Moly and -hrome Moly A: Austenitic stainless steels such as type %4$& ASME Welding Positions Graphic Representation
Note the welding progression, *vertically upwards or downwards+, must always be stated and it is an essential variable for both procedures and performance @ualifications& (elding Positions 'or )roove welds60 Welding Position 'lat 5oriontal Bertical Cpwards Progression Bertical 3ownwards Progression verhead Pipe 'ixed 5oriontal Pipe 'ixed D "7 degrees Cpwards Pipe 'ixed D "7 degrees 3ownwards
Test Position 4) !) %) %) ") 7) $) $)
IS and EN PA PP' P) PE P' 5;#"7 ;#"7
Test Position 4' !' !'1 %' %' "' 7'
IS and EN PA P9 P9 P' P) P3 P'
(elding Positions 'or 'illet welds60 Welding Position 'lat *(eld flat Foint at "7 degrees+ 5oriontal 5oriontal 1otated Bertical Cpwards Progression Bertical 3ownwards Progression verhead Pipe 'ixed 5oriontal
Welding Positions !W"#$%$ and !W"&$%' 9asically there are three inclinations involved& •
'lat, which includes from # to 47 degrees inclination
•
47 0 :# degrees inclination
•
Bertical, :# 0 ?# degrees
'or each of these inclinations the weld can be rotated from the flat position to 5oriontal to overhead&
CHEMICAL SYMBOLS FOR THE ELEMENTS C
Carbon Most efective hardening element in steel
Mn Si P S
Manganese Hardening element second to carbon Silicon Deoxidizer, moderate strengthener Phosphorus Causes cracking i too high Sulur ids in machining ! Cracking problems like
P Cr
Chromium Hardness "lo#$ ! corrosion resistance "high$ Ni %ickel Hardening element ! better cold toughness Mo Mol&bdenum Hardenabilit& ! high temp tensile ! creep strength B 'oron (er& small amounts increase hardness Cu Copper Corrosion resistance "lo#$ ! cracking "high$ Al luminum Deoxidizer ! improves mechanical properties Ti )itanium *emoves+ Ox&gen, S, N, and C N %itrogen mproves strength ! lo#ers toughness Cb Columbium Hardness ! mproves mechanical properties V (anadium Hardness ! mproves mechanical properties
ASME P(Numbers .o reduce the number of welding and braing procedure @ualifications re@uired base metals have been assigned P0Numbers by the ASME 9PB-& 'errous metals which have specified impact test re@uirements have been assigned )roup Numbers within P0Numbers& .hese assignments have been based on comparable base metal characteristics, such as6 •
-omposition
•
(eldability
•
9raeability
•
Mechanical Properties
Indiscriminant substitution of materials in a set of P0Numbers or )roup Numbers may lead to problems or potentially failures& Engineering assessment is necessary prior to a change in materials& (hen a base metal with a CNS number 3esignation is assigned a P0Number, then a base metal listed in a different ASME material specification with the same CNS number shall be considered that P0Number& .he table below is a guide and is for instructive purposes only& Anyone specifying materials or re@uirements should refer directly to the ASME 9oiler and Pressure Bessel -ode to specify materials, P0Numbers, procedures, or other re@uirements and not rely on the table below& .he table below is only a rather incomplete and approximate summary of ASME data&
P0Numbers
9ase Metal *.ypical or Example+
4
-arbon Manganese Steels *four )roup Numbers+
!
Not Csed
%
5alf Molybdenum or half -hromium, half Molybdenum *three )roup Nu
"
ne and a @uarter -hromium, half Molybdenum *two )roup Numbers+
7A
.wo and a @uarter -hromium, one Molybdenum
79
'ive -hromium, half Molybdenum or nine -hromium, one Molybdenum
7-
-hromium, Molybdenum, Banadium *five )roup Numbers+
$
Martensitic Stainless Steels *)rade "4#, "47, "!?+ *six )roup Numbers+
8
'erritic Stainless Steels *)rade "#?, "%#+
Austenitic Stainless Steels
:
?A, 9, -
4#A, 9, -, '
•
)roup 4 0 )rades %#", %4$, %48, %"8
•
)roup ! 0 )rades %#?, %4#
•
)roup % 0 5igh Manganese )rades
•
)roup " 0 5igh Molybdenum )rades
.wo to four Nic=el Steels
Barious low alloy steels
4#5
3uplex and Super 3uplex Stainless Steel *)rades %4:#%, %!87#+
4#I
5igh -hromium Stainless Steel
4#
5igh -hromium, Molybdenum Stainless Steel
4#G
5igh -hromium, Molybdenum, Nic=el Stainless Steel
44A
Barious high strength low alloy steels *six )roup Numbers+
449
Barious high strength low alloy steels *ten )roup Numbers+
4! to !#
Not Csed
!4
5igh Aluminum content *4### and %### series+
!!
Aluminum *7### series 0 7#7!, 7"7"+
!%
Aluminum *$### series H $#$4, $#$%+
!"
Not Csed
!7
Aluminum *7### series 0 7#:%, 7#:$, 7"7$+
!$ to %#
Not used
%4
5igh -opper content
%!
9rass
%%
-opper Silicone
%"
-opper Nic=el
%7
-opper Aluminum
%$ to "#
Not Csed
"4
5igh Nic=el content
"!
Nic=el, -opper 0 *Monel 7##+
"%
Nic=el, -hromium, Iron 0 *Inconel+
""
Nic=el, Molybdenum H *5astelloy 9!, -!!, -!8$, <+
"7
Nic=el, -hromium
"$
Nic=el, -hromium, Silicone
"8
Nic=el, -hromium, .ungsten
"8 to 7#
74, 7!, 7%
$4, $!
Not Csed
.itanium Alloys
>irconium Alloys
-.!//0 12%2*3 denti4cation o #eld metal chemical composition designated on the P-* and .PS shall be as given in -.!/5/676
)able -.!//8 9%umbers Classi4cation o :errous .eld Metal nal&sis or Procedure -uali4cation 9%o6 )&pes o .eld Deposit nal&sis, ; <%ote "0$= and <%ote "8$= C Cr Mo %i Mn Si 0 Mild Steel 5685 5685 56>5 5675 06?5 0655 8 Carbon9Mol&bdenum 5607 5675 56/5@56?7 5675 06?5 0655 > Chrome "56/; to 8;$9Mol&bdenum 5607 56/5@8655 56/5@56?7 5675 06?5 0655 / Chrome "8; to /;$9Mol&bdenum 5607 8655@/655 56/5@0675 5675 06?5 8655 7 Chrome "/; to 0567;$9Mol&bdenum 5607 /655@05675 56/5@0675 56A5 0685 8655 ? Chrome9Martensitic 5607 00655@07655 56B5 56A5 8655 0655 B Chrome9:erritic 5607 00655@>5655 0655 56A5 0655 >655 A Chromium9%ickel 5607 0/675@>5655 /655 B675@07655 8675 0655
Chromium9%ickel 56>5 0655@>5655 ?655 07655@>B655 8675 0655 05 %ickel to /; 5607 5675 5677 56A5@/655 06B5 0655 00 Manganese9Mol&bdenum 560B 5675 5687@56B7 56A7 0687@8687 0655 08 %ickel@ChromeMol&bdenum 5607 0675 5687@56A5 0687@86A5 56B7@ 8687 0655 %E)2S+ "0$ Single values sho#n above are maximum6 "8$ Enl& listed elements are used to determine !numbers6
Test Method Illustration
Br i nel l Har dnes sTes t i ng
D F 'all diameter d F impression diameter : F load H' F 'rinell result
