Part name	Standard material	Low temperature environment	Stainless steel material	High temperature environment	Acidic environment
Body	ASTM A216 WCB	ASTM A351 CF8M	ASTM A352 LCC	ASTM A217 WC9	ASTM A216 WCB
Seat ring	ASTM A105N+STL.6	ASTM A182 F316	ASTM A350 LF2+STL.6	ASTM A182 F22+STL.6	ASTM A105N+STL.6
Clack	ASTM A216 WCB+Cr13	ASTM A351 CF8M	ASTM A352 LCC+Cr13	ASTM A217 WC9+Cr13	ASTM A216 WCB+Cr13
Hinge	ASTM A216 WCB	ASTM A351 CF8M	ASTM A352 LCC	ASTM A217 WC9	ASTM A216 WCB
Gasket	Stainless steel/Graphite	Stainless steel/Graphite	Stainless steel/Graphite	Stainless steel/Graphite	Stainless steel/Graphite
Pin	ASTM A182 F6a	ASTM A276 316	ASTM A276 304	ASTM A276 304	ASTM A276 410(NACE)
Disc nut	ASTM A276 410	ASTM A276 316	ASTM A276 304	ASTM A276 304	ASTM A276 410(NACE)
Rod collar	ASTM A276 410	ASTM A182 F316	ASTM A182 F304	ASTM A182 F304	ASTM A182 F6a(NACE)
Axle pin	ASTM A182 F6a	ASTM A182 F316	ASTM A182 F304	ASTM A182 F304	ASTM A182 F6a(NACE)
Baffle plate	ASTM A276 410	ASTM A182 F316	ASTM A182 F304	ASTM A182 F304	ASTM A182 F6a(NACE)
Cover	ASTM A105N	ASTM A182 F316	ASTM A350 LF2	ASTM A182 F22	ASTM A105N
*Sealing ring	SS304+ Graphite	SS316+ Graphite	SS304+ Graphite	SS304+ Graphite	SS304+ Graphite
Locating ring	ASTM A276 410	ASTM A182 F316	ASTM A182 F304	ASTM A182 F304	ASTM A276 420(NACE)
Bonnet nut	ASTM A194 2H	ASTM A194 8	ASTM A194 7	ASTM A194 4	ASTM A194 2HM
Bolt	ASTM A193 B7	ASTM A193 B8	ASTM A320 L7	ASTM A193 B16	ASTM A193 B7M

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