This standard stipulates the welding quality inspection method and welding quality determination standard for destructive inspection of resistance spot welding.

This standard is applicable to the thickness ratio of the plate ≤3:1, thickness: 0.5—4.0mm, the material is: low-carbon steel, ordinary low-alloy steel, single/double-sided hot-dip and electroplated galvanized steel plate, high-strength steel plate, thermoformed steel plate, etc. Resistance solder joints of various steel plates used in Chery automobile body.

This standard has special requirements for parts with product attributes that should meet the requirements of product drawings and the special requirements of the product for welding quality.