1.4301 pipe stainless

Type 1.4301 and 1.4307 stainless steel are also known as grades 304 and 304L respectively. Type 304 is the most versatile and widely used stainless steel. It is sometimes still referred to by its old name of 18/8, which is derived from the nominal composition of Type 304 of 18% chromium and 8% nickel.
Type 304 stainless steel is an austenitic steel grade that can be subjected to rigorous deep drawing operations. This characteristic makes 304 the primary grade used in applications such as sinks and pans.
Type 304L is a lower carbon version of the 304. It is used on large gauge parts to improve solderability. Certain products, such as sheet and tubing, are available as “double certified” materials that meet both 304 and 304L standards.
304H is a high carbon content variant that can also be used at high temperatures.

Stainless steel 304 and stainless steel 304L are also called 1.4301 and 1.4307 respectively. Type 304 is the most versatile and widely used stainless steel. It is sometimes still referred to by its old name of 18/8, which is derived from the nominal composition of Type 304 of 18% chromium and 8% nickel. Type 304 stainless steel is an austenitic steel grade that can be subjected to rigorous deep drawing operations. This characteristic makes 304 the primary grade used in applications such as sinks and pans. Type 304L is a lower carbon version of the 304. It is used on large gauge parts to improve solderability. Some products, such as sheet and pipe, are available as "double certified" materials, meeting both 304 and 304L standards. 304H is a high carbon content variant that can also be used at high temperatures. The properties given in this data sheet are typical of flat rolled products covered by ASTM A240/A240M. It is reasonable to expect that the specifications in these standards will be similar but not necessarily identical to the specifications given in this data sheet.