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304 and 304L Stainless Steel Plate Stock Exporter in China

BBN Steel are professional Stainless Steel Plate Supplier in China,if you are looking for 304 material and 304L material Stainless Steel Plate,BBN Steel is definetly your best choice ever!

About 304 material and 304L material:

304 stainless steel is a common material, a density of 7.93 g / cm3, the industry alsoknown as 18/8 stainless steel. High temperature of 800 degrees, with good processing properties, high toughness characteristics, widely used in industrial and furniture industry and the medical industry food.

304L steel as a low C in the general state, its corrosion resistance and 304 similar, but after welding or stress after its excellent corrosion resistance to the grain boundary. In the case without heat treatment, can remain good corrosion resistance, generally use 400 or less (non-magnetic, temperature -196 degrees Celsius to 800 degrees Celsius). Widely used to produce good overall performance requirements (corrosion resistance and formability) of equipment and parts.

The difference for Chemical compostion and Mechanical property

304 Steel Chemical compostion:

C(%) Si(%) Mn(%) Cr(%) P(%) S(%) N(%) Ni(%) Cu(%)
≤0.08 ≤1.00 ≤2.00 18.0-20.0 ≤0.045 ≤0.03 ≤0.10 8.0-11.0 ---

304L Steel Chemical compostion:

C(%) Si(%) Mn(%) Cr(%) P(%) S(%) N(%) Ni(%) Cu(%)
≤0.03 ≤1.00 ≤2.00 18.0-20.0 ≤0.045 ≤0.03 ≤0.10 8.0-11.0 ---

304 Steel Mechanical property

tensile strength(Mpa) Yield Strength(Mpa) Elongation(%)

rate of reduction in area


≥515 ≥205 ≥40 ≥60 7.93

304L Mechanical property

tensile strength
Yield Strength
rate of reduction in area
≥485 ≥170 ≥40 ≥60 7.93

Specification for 304/304L SS grade

Technical Thickness Width Finish Status
Cold rolled 0.50mm-3.00mm Standard width in China:
1000mm 1219mm 1500mm
Special width:
Based on customer's require.
2B / BA /No.4 / HL 
Mirro etc
sheet / plate / coil 
Hot rolled 3.00mm-80.00mm 
or more thick
Standard width in China:
1219mm 1500mm 1800mm 2000mm
Special width:
Based on customer's require.
No.1  plate / coil

As we can see : 304L ratio of 304 carbon content, has a better corrosion.304 grade with higher strength, 304L with better better welding performance.

In general, the corrosion resistance of 304L stainless steel is similar to that of 304 stainless steel. However, the resistance to intergranular corrosion of 304L stainless steel is excellent after welding or stress relief.

According to the standard of hardness, 304 stainless steel is better than 304L stainless steel, because the carbon content directly affects the hardness of stainless steel. 

Whether you need 304 stainless steel or 304L stainless steel, we can provide you with quality products and services, welcome to inquire.