provide type 304 and 304L stainless steel in thickness from 0.25mm to 110mm, and widths up to 1800mm. For other thickness and widths, inquire.
Values shown in this bulletin were established in U.S. customary units.The metric equivalents may be approximate.
High strength, excellent corrosion resistance and excellent formability make types 304 and 304L stainless steel useful for many applications.Typical uses include architectural moldings and trim, kitchen equipment, as well as chemical, textile, paper, pharmaceutical and chemical industry processing equipment.
For severely corrosive environments or when welding is required, type 304L is preferred because of its greater immunity to intergranular corrosion.
|Composition||Type 304||Type 304L|
|(wt %)||(wt %)|
|Carbon||0.08 max.||0.03 max.|
|Manganese||2.00 max.||2.00 max.|
|Phosphorus||0.045 max.||0.045 max.|
|Sulfur||0.030 max.||0.030 max.|
|Silicon||0.75 max.||0.75 max.|
|Nitrogen||0.10 max.||0.10 max.|
Type 304 stainless steel is a variation of the base 18-8 grade, with a higher chromium and lower carbon content. The lower carbon content minimizes chromium carbide precipitation due to welding and its susceptibili
ty to intergranular corrosion.In some instances type 304 can be used in the "as-welded" condition.
Type 304L is an extra low-carbon variation of type 304 with a 0.03% maximum carbon content that eliminates carbide precipitation due to welding.As a result, this alloy can be used in the "as welded" condition, even in severe corrosive conditions.In many cases it eliminates the necessity of annealing weldments except for applications specifying stress relief. Type 304L has slightly lower mechanical properties than type 304.
Table 1 - Typical room temperature mechanical properties
Table 2 - Elevated temperature mechanical properties
Table 3 -Low temperature mechanical properties