：
Stainless Steel Strip (GB/T4356-1984)
Stainless steel strip is a kind of steel strip obtained by cold rolling or hot rolling of stainless steel sheet and coil (strip) with a certain width and thickness. The specifications and grades of stainless steel strip can be divided into GB/T4356-1984 (the predecessor is GB1220-84). It is mainly used in the manufacture of blades, springs, molds and parts with special requirements such as watchbands, ornament, etc. It is also used as paint units, decorative pipes and handheld utensils, automotive industry, petrochemical industry, electronic and electrical industry, etc.
GB/T4356-1984 sets the requirements for stainless steel strip. The chemical composition is divided into 21 grades, including 06Cr17Ni4Cu4Nb. The carbon content must be 0.08% or less. Other alloy elements mainly contain Cr, Ni, Ti, Si and Mn. The tensile strength should generally be greater than 520MPa, the yield strength should be greater than 230MPa, and the elongation should be greater than 25%. Its surface is required to be flat and bright, free of obvious defects and lamination defects, no rust and discoloration spots. The thickness of the finished product is generally between 0.1mm～2.0mm, and the width is usually between 4mm～800mm.
Stainless steel strips are manufactured through the process of cold rolling or hot rolling. Generally, cold-rolled stainless steel strips have average expansion rate and high hardness, while hot-rolled stainless steel strips have good plasticity, low tensile strength and poor surface quality. After manufacturing, visual inspection and electric spark detection shall be carried out. Ultrasonic testing should be carried out for steel strips thicker than 0.8mm.
In a word, stainless steel strip (GB/T4356-1984) is made of stainless steel material with a certain width and thickness. It is an important material for the manufacture of some components and parts with strict requirements. It has excellent performance and long service life.
