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looking for material type for DIN 1804 5W

looking for material type for DIN 1804 5W

looking for material type for DIN 1804 5W

(OP)
print calls for the nut to be made to DIN 1804 and the material is listed as steel( 5W). I don't know what the 5W is. I would be greatfull for any help

                thanks

RE: looking for material type for DIN 1804 5W

This is an ancient DIN standard, last changed in 1971.  The 5 means class 5 according to DIN 267 Part 4, which is now obsolete, having been superceded by DIN EN 20898-2 (same as ISO 898-2).  The W means unhardened.  Just about steel can be used to meet the property requirements of ISO 898-2 class 5.  The following link has additional information:

http://www.bossard.com/techinfo/en/extdoc/TT_09-09.pdf

 

RE: looking for material type for DIN 1804 5W

(OP)
thanks. this helps a bunch.

 

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