Cross-Reference Charts Cross-Reference Charts Mold Finish Cross Reference Chart Type of FinishesCurrent SPI Finish NumbersRoughness Comparison R.A. Diamond #3 Diamond BuffA10-1#6 Diamond BuffA21-2#15 Diamond BuffA32-3Paper 600 GritB12-3400 GritB24-5320 GritB39-10Stone600 StoneC110-12400 StoneC225-28320 Stone C338-42Dry Blasted #11 Glass BeadD110-12240 Aluminum Oxide Blast D226-32#24 Aluminum Oxide BlastD3190-230 Download PDF Chart Global Steel Cross Reference Tool This chart references common tooling materials and their designations in various regions. Contact Progressive at tech@procomps.com for materials not listed here. MaterialsUA SAE/AISIJapanGermany W.nbrUnited Kingdom Low Carbon Steels 1018S15C1.0453081A15(up to .35% Carbon)4130SCM2708A308630SNCM220H1.6523805A20Medium Carbon SteelsP201.2311/1.23304659(.35-.50%Carbon)4140SCM4401.7225708A42A-2SKD121.2363BA2High Carbon andD-2SKD111.2379BD2 Tool SteelsH-13SKD611.2344BH13(up to 1.50% Carbon)M-2SKH511.3343BM2O-1SKS211.2510BO1O-2SKS931.2842S-7SKH3BT4Stainless Steel303SUS3031.4305303S21 420SUS420J11.4021X20Cr13440CSUS440C1.4125 Download PDF Chart