Chrome Moly Material Grade Composition Chart
| Name | ASTM# | Grade | UNS# | Nominal Composition |
|---|---|---|---|---|
| F5 | A182 | F5 | K41545 | C-.15max Mn-.30-.60 Cr-4.0-6.0 Mo-.44-.65 |
| F5a | A182 | F5a | K42544 | C-.25max Mn-.60 Cr-4.0-6.0 Mo-.44-.65 |
| F9 | A182 | F9 | K90941 | C-.15max Mn-.30-.60 Cr-8.0-10.0 Mo-.90-1.10 |
| F11 | A182 | F11 | K11572 | C-.10-.20 Mn-.30-.80 Cr-1.0-1.5 Mo-.44-.65 |
| F22 | A182 | F22 | K21590 | C-.05-.15 Mn-.30-.60 Cr-2.0-2.5 Mo-.87-1.13 |
| F91 | A182 | F91 | K91560 | C-.08-.12 Mn-.30-.60 Cr-8-9.5 Mo-.85-1.05 Cb-.06-.10 N-.03-.07 Al-.04max V-.18-.25 |