The following tables detail standard trim material available. Special trims are available on request. OVERVIEW API 600 TRIM TYPES AUSTRALIAN PIPELINE VALVE 10 API Trim Number Nominal Trim Trim Code Stem & other trim parts Disc/Wedge/Surface Seat Surface Trim Material Grade Service 1 410 F6 410 (13Cr)  (200-275 HBN) F6 (13Cr)  (200 HBN) 410 (13Cr)  (250 HBN min) 13Cr-0.75Ni-1Mn For oil and oil vapors and general services with heat treated seats & wedges. General very low erosive or non-corrosive service between -100°C & 320°C. This stainless steel material lends itself readily to hardening by heat treatment & is excellent for contacting parts such as stems, gates, & discs. Steam, gas & general service to 370°C. Oil & Oil vapor 480°C. 2 304 304 304 304  (18Cr-8Ni) 304  (18Cr-8Ni) 19Cr-9.5Ni-2Mn-0.08C For moderate pressure in corrosive, low erosive service  between -265°C and 450°C. 3 310 310 (25Cr-20Ni) 310  (25Cr-20Ni) 310  (25Cr-20Ni) 25Cr-20.5Ni-2Mn For moderate pressure in corrosive or non corrosive service between -265°C and 450°C. 4 410  Hard F6H 410 (13Cr)  (200-275 HBN) F6 (13Cr)  (200-275 HBN) F6 (13Cr)  (275 HBN min) 13Cr-0.75Ni-1Mn Seats 275 BHN min. As trim 1 but for medium pressure &  more corrosive service. 5 410  Full Hard faced F6HF 410 (13Cr)  (200-275 HBN) F6+St Gr6  (CoCr Alloy)  (350 HBN min) 410+St Gr6  (CoCr Alloy)  (350 HBN min) 13Cr-0.5Ni-1Mn/Co-Cr-A High pressure slightly erosive and corrosive service between -265°C and 650°C and higher pressure.   Premium trim service to 650°C. Excellent for high pressure water & steam service. 5a 410 Full Hard faced F6HF 410 (13Cr)  (200-275 HBN) F6+Hardf. NiCr Alloy  (350 HBN min) 410+Hardf. NiCr Alloy  (350 HBN min) 13Cr-0.5Ni-1Mn/Co-Cr-A As trim 5 where Co is not allowed. 6 410 and Ni-Cu F6HFS 410 (13Cr)  (200-275 HBN) Monel 400®(NiCu Alloy) (250 HBN min) Monel 400®(NiCu Alloy) (175 HBN min) 13Cr-0.5Ni-1Mn/Ni-Cu As trim 1 and more corrosive service. 7 410  Very Hard F6HF+ 410 (13Cr)  (200-275 HBN) F6 (13Cr)  (250 HBN min) F6 (13Cr) (750 HB) 13Cr-0.5Ni-1M0/13Cr-0.5Ni-1Mo Seats 750 BHN min. As trim 1 but for higher pressure & more corrosive/erosive service. 8 410  Hard faced F6HFS 410 (13Cr)  (200-275 HBN) 410 (13Cr)  (250 HBN min) 410+St Gr6 (CoCr Alloy)  (350 HBN min) 13Cr-0.75Ni-1Mn/1/2Co-Cr-A Universal trim for general service requiring long service life up to 593°C. As trim 5 for moderate pressure and more corrosive service. Steam, gas & general service to 540°C. Standard trim for gate valves. 8a 410  Hard faced F6HFS 410 (13Cr)  (200-275 HBN) F6 (13Cr)  (250 HBN min) 410+Hardf. NiCr Alloy  (350 HBN min) 13Cr-0.75Ni-1Mn/1/2Co-Cr-A As trim 5a for moderate pressure & more corrosive service 9 Monel Monel Monel®  (NiCu Alloy) Monel 400®  (NiCu Alloy) Monel 400®  (NiCu Alloy) 70Ni-30Cu For corrosive service to 450°C such as acids, alkalies, salt solutions, etc. Very corrosive fluids. Erosive-corrosive service between -240°C and 480°C. Resistant to sea water, acids, alkalies. Has excellent corrosion resistance in chlorine and alkylation service. 10 316 316 316  (18Cr-Ni-Mo) 316  (18Cr-Ni-Mo) 316  (18Cr-Ni-Mo) 18Cr-12Ni-2.5Mo-2Mn For superior resistance to corrosion for liquids & gases which are corrosive to 410 stainless steel up to 455°C.   As trim 2 but a higher level of corrosive service. Provides excellent resistance to corrosive media at high temperatures & toughness for service at low temperatures. Low temperature service standard for 316SS valves. 11 Monel  Hard faced MonelHFS Monel®  (NiCu Alloy) Monel 400®  (NiCu Alloy) Monel 400®+St Gr6  (350HBN min) 70Ni-30Cu/1/2Co-Cr-A As trim 9 but for medium pressure & more corrosive service. 11a Monel  Hard faced MonelHFS Monel®  (NiCu Alloy) Monel 400®  (NiCu Alloy) Monel 400®+HF NiCr Alloy (350 HBN min) 70Ni-30Cu/1/2Co-Cr-A As trim 9 but for medium pressure & more corrosive service. 12 316  Hard faced 316HFS 316  (Cr-Ni-Mo) 316 (18Cr-8Ni-Mo) 316+St Gr6  (350 HBN min) 18Cr-12Ni-2.5Mo-2Mn1/2Co-Cr-A As trim 10 but for medium pressure & more corrosive service. 12a 316  Hard faced 316HFS 316  (Cr-Ni-Mo) 316  (18Cr-8Ni-Mo) 316 Hardf. NiCr Alloy  (350 HBN min) 18Cr-12Ni-2.5Mo-2Mn1/2Co-Cr-A As trim 10 but for medium pressure & more corrosive service. 13 Alloy 20 Alloy 20 Alloy 20  (19Cr-29Ni) Alloy 20  (19Cr-29Ni) Alloy 20  (19Cr-29Ni) 29Ni-19Cr-2.5Mo-0.07C Very corrosive service. For moderate pressure between -45°C and 320°C. 14 Alloy 20  Hard faced Alloy 20HFS Alloy 20  (19Cr-29Ni) Alloy 20  (19Cr-29Ni) Alloy 20 St Gr6  (350 HBN min) 29Ni-19Cr-2.5Mo- 0.07C/1/2Co-Cr-A As trim 13 but for medium pressure & more corrosive service. 14a Alloy 20  Hard faced Alloy 20HFS Alloy 20  (19Cr-29Ni) Alloy 20  (19Cr-29Ni) Alloy 20 Hardf. NiCr Alloy (350 HBN min) 29Ni-19Cr-2.5Mo- 0.07C/1/2Co-Cr-A As trim 13 but for medium pressure & more corrosive service. 15 304 Full Hard faced 304-HF 304  (18Cr-8Ni-Mo) 304St Gr6 304+St Gr6  (350 HBN min) 19Cr-9.5Ni-2Mn-0.08C/1/2Co-Cr-A As trim 2 but more erosive service & higher pressure. 16 316 Full Hard faced 316-HF 316 HF  (18Cr-8Ni-Mo) 316+St Gr6  (320 HBN min) 316+St Gr6  (350 HBN min) 18Cr-12Ni-2.5Mo-2Mn/ Co-Cr-Mo As trim 10 but more erosive service & higher pressure. 17 347 Full Hard faced 347-HF 347 HF  (18Cr-10Ni-Cb) 347+St Gr6  (350 HBN min) 347+St Gr6  (350 HBN min) 18Cr-10Ni-Cb/Co-Cr-A As trim 13 but more corrosive service & higher pressure.  Combines good corrosion resistance with high temperature resistance up to 800°C. 18 Alloy 20 Full Hard faced Alloy 20 HF Alloy 20  (19Cr-29Ni) Alloy 20+St Gr6  (350 HBN min) Alloy 20+St Gr6  (350 HBN min) 19Cr-29Ni/Co-Cr-A As trim 13 but more corrosive service & higher pressure.  Water, gas or low pressure steam to 230°C. Special Bronze Bronze 410  (CR13) Bronze Bronze Water, oil, gas, or low pressure steam to 232°C. Special Alloy 625 Alloy 625 Alloy 625 Alloy 625 Alloy 625 NACE Specially treated 316 or 410 trim combined optionally with B7M bolts and 2HM nuts to meet NACE MR-01-75 requirements. Full Stellite Full Hardfaced trim, suitable for abrasive & severe services up to 1200°F (650°C). Important Note: Data provided in this chart is for informational purposes only. Always consult current API publications to verify information and trim data. Australian Pipeline Valve (APV) recommends that   customer’s engineers analyse service requirements and specify the materials they consider optimum for their service conditions. Temperatures shown will vary depending on service applications, pressure and media type. For API trim 19 to 21 and hardness requirements of all trims, see the technical section of the APV website.