API 600 Trim Number Chart

API 600 trim number chart

TRIM No.	MATERIAL	SEAT	DISC	BACK SEAT	STEM
1	410	410	410	410	410
2	304	304	304	304	304
3	F310	310	310	310	310
4 *	Hard 410	Hard 410	Hard 410	410	410
5	Hard faced	Stellite	Stellite	410	410
5A	Hard faced	Ni-Cr	Ni-Cr	410	410
6	410 and Cu-Ni	Cu-Ni	410	410	410
7*	410 and Hard 410	Hard 410	Hard 410	410	410
8	410 and Hard faced	Stellite	410	410	410
8A	410 and Hard faced	Ni-Cr	410	410	410
9	Monel	Monel	Monel	Monel	Monel
10	316	316	316	316	316
11	Monel and Hard faced	Stellite	Monel	Monel	Monel
12	316 and Hard faced	Stellite	316	316	316
13	Alloy 20	Alloy 20	Alloy 20	Alloy 20	Alloy 20
14	Alloy 20 and Hard faced	Stellite	Alloy 20	Alloy 20	Alloy 20
15	304 and Hard faced	Stellite	Stellite	304	304
16	316 and Hard faced	Stellite	Stellite	316	316
17	347 and Hard faced	Stellite	Stellite	347	3477
18	Alloy 20 and Hard faced	Stellite	Stellite	Alloy 20	Alloy 20

* The seats shall be 750BHN Min.

E.g.:

API 600 Cast Steel Gate valve, WCB body, API 600 Trim no. 5 means the seat: A105+Stelite, disc: WCB+Stelite, Stem: ASTM A182 F6a

API 600 Gate valve, WCB body, API 600 Trim no. 1 means the seat: A105+13Cr, disc: WCB+13Cr, Stem: ASTM A182 F6a

API 600 Gate valve, WCB body, API 600 Trim no. 8 means the seat: A105+Stelite, disc: WCB+13Cr, Stem: ASTM A182 F6a