Reference table for the selection of corrosion-resistant materials for the parts of the transmitter that come into contact with media

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Common Techniques – Reference Table for Selecting Corrosion-Resistant Materials for the Contact Media Parts of Transmitters
Medium Name, Concentration %, Temperature °C: 316 Stainless Steel, Hastelloy C, Monel, Tantalum
Medium Name, Concentration %, Temperature °C: 316 Stainless Steel, Hastelloy, Monel, Tantalum

Sulfuric Acid, 5, Room Temperature, Boiling Point: ☆☆☆☆
Hydrofluoric Acid, 5, 48, Room Temperature, Boiling Point: ××☆× ×○○☆×○○; 10, Room Temperature, Boiling Point: ×☆☆☆
Acetic Acid, 100, Room Temperature, Boiling Point: ☆☆☆☆ ××○☆☆☆☆; 60, Room Temperature, Boiling Point: ×☆☆☆
Formic Acid, 50, Room Temperature, Boiling Point: ×☆○☆ ○○○×☆☆; 80, Room Temperature, Boiling Point: ×☆☆☆
Oxalic Acid, 10, Room Temperature, Boiling Point: ○○○☆ ×× ○×○○○; 95, Room Temperature, Boiling Point: ☆☆×☆
Citric Acid, 50, Room Temperature, Boiling Point: ☆☆○☆ ×× ×☆☆○☆
Salt Acid, 5, Room Temperature, Boiling Point: ×○×☆
Sodium Hydroxide, 20, Room Temperature, Boiling Point: ☆☆☆× ×××☆○×; 10, Room Temperature, Boiling Point: ×○×☆; 40, Room Temperature, Boiling Point: ☆☆☆× ×××☆○×; 20, Room Temperature, Boiling Point: ×○×○
Potassium Hydroxide, 50, Room Temperature: ○○☆☆ ×××○; 35, Room Temperature, Boiling Point: ×○×○
Ferrous Chloride, 30, Room Temperature, Boiling Point: ×○×☆ ×××○×××☆
*ao Acid, 10, Room Temperature, Boiling Point: ☆○×☆
Chloride, 20, Saturated, Room Temperature, Boiling Point: ○☆ ☆ ☆○×☆○☆; 30, Room Temperature, Boiling Point: ☆○×☆
Ammonium Chloride, 25, Room Temperature, Boiling Point: ○☆○☆ ○××☆○☆; 68, Room Temperature, Boiling Point: ☆○ ☆
Calcium Chloride, 25, Room Temperature, Boiling Point: ○☆☆☆ ○× ☆☆☆
MgCl₂, 42, Room Temperature, Boiling Point: ○☆○☆ ○☆○☆
Phosphoric Acid, 30, Room Temperature, Boiling Point: ☆☆×☆
Sulfamic Acid, 20° Saturated, Room Temperature, Boiling Point: ☆☆☆☆ ○☆×☆○○☆; 60, Room Temperature, Boiling Point: ☆☆×☆
Chloride, 10, Room Temperature, Boiling Point: ☆☆☆☆ ○☆×☆○☆☆☆; 70, Room Temperature, Boiling Point: ☆☆×☆
Sodium Sulfate, 50, Room Temperature, Boiling Point: ☆☆☆☆ ×○×☆☆☆○☆; 80, Room Temperature, Boiling Point: ☆☆×☆
*ao Acid, 10, Room Temperature, Boiling Point: ☆☆×☆ ××☆☆☆☆
Sulfuric Acid + *ao Acid, Room Temperature: ☆
Potassium Nitrate, All Room Temperatures, Boiling Point: ○○○☆ ○☆
Chromium Water, 20, Room Temperature, Boiling Point: ☆ ☆
Dry Chlorine Gas, Room Temperature: ☆☆○☆; Wet Chlorine Gas, Room Temperature: ×○ ☆
Aqua Regia, Room Temperature, Boiling Point: ×☆ ☆
Saturated Chlorine Water, Room Temperature: ×○○☆ ××☆
Wet Sulfur Dioxide, Room Temperature, Boiling Point: ☆ ☆ ☆
Wet Hydrogen Sulfide, Room Temperature: ☆ ☆☆
Ammonia Water, <100: 50; 100: ☆☆ ☆ —

Materials with good corrosion resistance: ○
Materials with moderate corrosion resistance: ×
Materials with no corrosion resistance: ×