This standard specifies the tensile, bending, impact and hardness test methods for clad steel plate welded joints (hereinafter referred to as welded joints). Mechanical and mechanical properties of welded joints of single-sided and double-sided clad steel plates with stainless steel or non-ferrous metals as cladding materials, with a total thickness of not less than 8 mm, rolled, exploded, surfacing, cast, exploded rolled, surfacing rolled, and cast-rolled Process performance test, mechanical performance test of welded joints of clad steel plates and other metal clad plates with a total thickness less than 8 mm can also implement this standard,