Common Steel Sheet Metal Grades

American steel grades.

Common steel sheet metal grades.

It is a silicon killed coarse grained steel that requires careful welding techniques. Astm a285 steel grade c in fire box and flange quality designed for fusion welded boilers and pressure vessels where moderate strength and good forming is required. Around the world a variety of organizations have developed standards for steel grading including british standards japanese industrial standards and germany s gb standard. Aisi sae steel grades standard british standards.

Astm a515 steel grade 70 has greater strength than a285 and intended for intermediate and high temperature boilers and pressure vessels. When working with sheet metal it is common for the term gauge to be used someone unfamiliar with the gauge system may not understand what is meant by 18 gauge steel for example. However sae international s steel grading system is the most common. For alloys in general including steel unified numbering system uns of astm international and the society of automotive engineers sae.

Japanese steel grades. On the other hand in the case of sae j403 grade 1008 the spec allows for up to 0 10 percent carbon with no minimum. The sae j403 grade 1010 specification states that the steel may be supplied with carbon content from 0 08 to 0 13 percent. Steel grades standards by country.

International organization for standardization iso ts 4949 2003. For example 1010 steel is a carbon steel with a nominal 0 10 percent carbon level. To help this blog will explain the gauge system and features a sheet metal gauge chart.