Stainless Steel Foil Stainless Steel 309 Length Type Roll Rectangle 100 ft Roll Length Length Tolerance +/-0.100 in 24 in Overall Width Width Tolerance +/-0.010 in 0.002 in Thickness Thickness Tolerance +/-0.100 in Fabrication Hot Rolled Maximum Temperature 2 000 Degrees F Heat Treatment Tempered Heat Treatable Yes Mechanical Finish Plain Yield Strength 30 000 psi Tensile Strength 75 000 psi B85 Rockwell Hardness Includes Material Certificate No Standards A240