ISO 2553 Weld Symbol letters

Question

ISO 2553 Weld Symbol letters

PeterSl (Mechanical)

(OP)

4 Jul 13 03:34

Can anyone tell me if the letter "s" is required before the dimension for weld penetration on anything other than fillet welds? I can see from the standard that an "a" or a "z" is required when specifying fillet weld size but the examples for other welds are unclear as to the requirement for the "s".
Thanks
Pete

denlow60 (Materials) · Answer 1 · 2013-11-23 09:32:10

RE: ISO 2553 Weld Symbol letters

denlow60 (Materials) 23 Nov 13 09:32

S is symbool four A,Z,I,V

TVP (Materials) · Answer 2 · 2013-11-24 15:46:12

s indicates the throat thickness for a deep penetration fillet weld. See section 6.2.3 for definition.

denlow60 (Materials) · Answer 3 · 2013-11-24 19:58:38

@ TVP
you are read in section 6.2.3 is explain

PeterSl (Mechanical) · Answer 4 · 2013-12-09 05:23:28

Thanks all for trying to help.
The standard is fairly clear on what the letters stand for, what is not so clear is whether or not the letter s has to precede the penetration dimension when one is used (no dimension implies full penetration.

TVP (Materials) · Answer 5 · 2013-12-10 09:08:05

The letter precedes the dimension, whether it is z, a, or s.

rodofgod (Materials) · Answer 6 · 2014-03-16 14:52:17

The letter 's' is also required for partial penetrant welds such as shown in 'Single-V butt weld with broad root face' and with the 'Single-bevel butt weld with broad root face',Items 5&6 in table 1).It states this in the footnote at the bottom of that table.If their is no 's' value buttweld are to have complete penetration.(6.2.2).

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ISO 2553 Weld Symbol letters