A2 70 bolt naming

Photo: SS A2-70 Bolt

SS bolt A2-70: The meaning of A2-70 in top of the SS bolt- When we see A2 Steel then we can say it SS 304 grade, also can be said 18/8 because it approximately consists of 18-20% chromium and 8-10% Nickel. 

This A2 (304) is Austenitic Steel (Primary Phase Face Centered Cubic Crystal). It has commonly three Property Classes: 50 (soft) , 70 (cold-worked) Tensile strength 700 N/mm2 & 80 (high-strength) – the most common of which is the 70 class which is cold drawn” from bar stock.

So, In a nut-shell The meaning of A2-70 is Grade 304 Stainless Steel having 700 N/mm2 tensile Strength.

Uses : used extensively for sinks, tabletops, stoves, refrigerators , pots, pans dairy equipment, brewing industry, fruit industry, food processing plants, dye tanks, pipelines,  and more plants/industry.