ISO 2553 Weld Symbol letters

PeterSl · Jul 4, 2013

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 · Nov 23, 2013

S is symbool four A,Z,I,V

TVP · Nov 24, 2013

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

denlow60 · Nov 24, 2013

@ TVP
you are read in section 6.2.3 is explain

PeterSl · Dec 9, 2013

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 · Dec 10, 2013

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

rodofgod · Mar 16, 2014

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).

Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

ISO 2553 Weld Symbol letters

PeterSl

Mechanical

denlow60

Materials

TVP

Materials

denlow60

Materials

PeterSl

Mechanical

TVP

Materials

rodofgod

Materials

Similar threads

Part and Inventory Search

Sponsor