Selection Wizard
Body, Trim & Seat Materials
Materials derived from your service type, temperature and pressure class per ASME B16.34 and API 615. Each field is locked to the engineering recommendation — click ‘Override recommendation’ to change it.
Body
Body material
RecommendedCarbon steel WCB is the standard, cost-effective body material for general hydrocarbon and utility service within the temperature range -29 °C to 425 °C and applicable pressure class.
Body material specification
RecommendedASTM grade aligned with body material and service (NACE / sour / low-temp variants where applicable).
Trim
Seat material
RecommendedPTFE (or glass-reinforced PTFE / RPTFE) seats are standard for ball valves in general service below 200 °C. PTFE provides low friction, chemical resistance, and reliable sealing. Electroless Nickel Plating (ENP) on the SS 316 ball improves hardness and corrosion resistance.
Disc / Ball material
RecommendedTrim hardness/coating selected for erosion, throttling and corrosion resistance.
Stem material
RecommendedStem grade chosen for strength, galling and corrosion resistance vs. body/packing.
Sealing
Gasket
RecommendedGasket type matched to flange facing, pressure class and service (RTJ for high-pressure, spiral-wound elsewhere).
Packing
RecommendedPacking chosen for fugitive-emissions class and temperature; live-loaded graphite for low-emission service.
Body: Carbon steel WCB is the standard, cost-effective body material for general hydrocarbon and utility service within the temperature range -29 °C to 425 °C and applicable pressure class.
Learning moment
Body material is set by fluid + temperature: WCB carbon steel covers most hydrocarbons from −29 °C to 425 °C; LCC/LCB for low-temp service; CF8M (316SS) for corrosives and cryogenic; chrome-moly (WC6/WC9) above 425 °C. Sour service adds NACE MR0175/ISO 15156 hardness limits.
Trim: PTFE (or glass-reinforced PTFE / RPTFE) seats are standard for ball valves in general service below 200 °C. PTFE provides low friction, chemical resistance, and reliable sealing. Electroless Nickel Plating (ENP) on the SS 316 ball improves hardness and corrosion resistance.
Rating basis
Group 1.1 - Carbon Steel selected from the body material and ASTM grade. B16.5 pressure class is screened against ASME B16.5 Table 2-1.1; valve body material suitability is screened against ASME B16.34 Table A-1 / material group cross-reference.
ASME B16.34 body check: ASTM A216 WCB maps to Group 1.1 - Carbon Steel; 120 deg C is within the screening range (-29 deg C to 425 deg C). Verify final body rating against ASME B16.34 Table A-1 / material group cross-reference.
ASTM A216 WCB
ASTM A216 WCB
ASME B16.34 Table A1
ASME B16.34 Table A1
API 615
API 615 §7.1
API 6D
API 6D §6.3
Body, Trim & Seat Materials
Materials derived from your service type, temperature and pressure class per ASME B16.34 and API 615. Each field is locked to the engineering recommendation — click ‘Override recommendation’ to change it.
Body: Carbon steel WCB is the standard, cost-effective body material for general hydrocarbon and utility service within the temperature range -29 °C to 425 °C and applicable pressure class.
Learning moment
Body material is set by fluid + temperature: WCB carbon steel covers most hydrocarbons from −29 °C to 425 °C; LCC/LCB for low-temp service; CF8M (316SS) for corrosives and cryogenic; chrome-moly (WC6/WC9) above 425 °C. Sour service adds NACE MR0175/ISO 15156 hardness limits.
Trim: PTFE (or glass-reinforced PTFE / RPTFE) seats are standard for ball valves in general service below 200 °C. PTFE provides low friction, chemical resistance, and reliable sealing. Electroless Nickel Plating (ENP) on the SS 316 ball improves hardness and corrosion resistance.
Rating basis
Group 1.1 - Carbon Steel selected from the body material and ASTM grade. B16.5 pressure class is screened against ASME B16.5 Table 2-1.1; valve body material suitability is screened against ASME B16.34 Table A-1 / material group cross-reference.
ASME B16.34 body check: ASTM A216 WCB maps to Group 1.1 - Carbon Steel; 120 deg C is within the screening range (-29 deg C to 425 deg C). Verify final body rating against ASME B16.34 Table A-1 / material group cross-reference.
ASTM A216 WCB
ASTM A216 WCB
ASME B16.34 Table A1
ASME B16.34 Table A1
API 615
API 615 §7.1
API 6D
API 6D §6.3
Engineering Decision Support Tool - Screening / Internal Review Use unless independently validated.
Outputs are generated for engineering screening and decision support only. Final responsibility for standards compliance, engineering judgment, specification verification, and approved project use remains with the user organization and qualified reviewing engineer.