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 A312Grades 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 I 1/8 Hard |
85000-105000 | 35000-75000 | 20-55 | 80-95 |
| 304L | Annealed I 1/8 Hard |
80000-105000 | 30000-75000 | 20-55 | 75-95 |
| 316 | Annealed | 85000 min | 35000 min | 50 min | 80 min |
| 316L | Annealed | 80000 min | 30000 min | 50 min | 75 min |
Dimension
Production Process
