What Does A2 70 Mean On a Bolt?

The A2-70 on a bolt signifies its material and strength rating. Among fastener bolts, bolt A2-70 is one of the types of bolts.

First of all, the "A2" in the marking refers to the material of the bolt. " A" stands for stainless steel. The "A" stands for stainless steel and the "2" stands for the alloy composition of the material. Specifically, A2 bolts are made from a stainless steel alloy with chromium and nickel as the main components. Stainless steel materials have excellent corrosion resistance and can be used for long periods of time in wet, acidic or alkaline environments without rusting.

The "70" in the marking indicates the strength class of the bolt. Generally, the strength class of bolts is determined by their tensile strength. In the case of A2-70 bolts, the "70" here means that they have a tensile strength of 700 N/mm². This means that these bolts have a relatively high strength and can be used in applications where they need to withstand good mechanical loads.

Among fastener bolts, A2-70 bolts are widely used in various industries. Its excellent corrosion resistance allows it to be used in wet environments, food processing, chemical industry and other fields, while its high strength makes it able to withstand large mechanical loads.

A2-70 bolts are one of the main products of GNEE Steel, with its professional manufacturing capacity and strict quality inspection standards, can provide high quality bolts A2-70 to ensure that customers get safe and reliable fastening solutions.

The following are GNEE's products: A2-70 Allen Bolts, A2-70 Stainless Steel T Bolts, A2-70 Flange Bolts, A2-70 Hex Bolts.