Industrial Valve Material Selection
How to compare carbon steel, low-temperature steel, stainless steel, duplex and alloy materials for valve RFQs.
Material Selection Starts With the Fluid and Temperature
Body material alone does not define compatibility. Review fluid chemistry, chlorides, H2S/CO2, design temperature, corrosion allowance, trim, seat, packing and bolting together.
Typical Questions
- Is low-temperature impact testing required?
- Does the service require NACE / ISO 15156 compliance?
- Are chlorides high enough to affect stainless-steel selection?
- Is hardfacing or special trim required?
- Are PMI, hardness or ferrite checks required?