Welded Stainless Steel Pipe Standards ASTM A312 Grades 304/L and 316/L Sizes 1/4" Thru 36" Schedules 10s, 20, 40s, 80s Seamless Stainless Steel Pipe Standards ASTM A312 Grades 304/L and 316/L Sizes 1/4" Thru 20”
Schedules 10s, 40s, 80s, 160, and XXH, True 40, True 80
Chemical Composition
Grades C max Mn max P max S max Si max Cr Ni Mo
304 0.08 2.00 0.04 0.03 0.075 18.00-20.00 8.00-11.00 /
304L 0.035 2.00 0.04 0.03 0.075 18.00-20.00 8.00-13.00 /
316 0.08 2.00 0.04 0.03 0.075 16.00-18.00 11.00-14.00 2.00-3.00
316L 0.035 2.00 0.04 0.03 0.075 16.00-18.00 10.00-15.00 2.00-3.00
Mechanical Properties
Grades Itemper Tensile Psi Yield Psi Elong % Rockwell Hardness
304 Annealed 85000-105000 35000-75000 20-55 80-95
304L Annealed I1/8 Hard 80000-105000 30000-75000 20-55 75-95
316 Annealed 85000 min 35000 min 50 min 80 min
Annealed 80000 min 30000 min 50 min 75 min
Sizes of Stainless Steel Pipe
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