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Which material is best for heat exchangers?
Quick answer
Fresh cooling water: SS 304L Stainless Steel or SS 316L Stainless Steel. Chloride / brackish water: Duplex 2205 Stainless Steel or Super Duplex 2507 Stainless Steel. Seawater: Titanium Grade 2 or Cupro-Nickel 90/10 or SS 254 SMO Stainless Steel. Acids and sour process fluids: Incoloy 825 or Hastelloy C276.
| Service condition | Recommended materials |
|---|---|
| Fresh cooling water | SS 304L Stainless Steel, SS 316L Stainless Steel |
| Chloride / brackish water | Duplex 2205 Stainless Steel, Super Duplex 2507 Stainless Steel |
| Seawater | Titanium Grade 2, Cupro-Nickel 90/10, SS 254 SMO Stainless Steel |
| Acids and sour process fluids | Incoloy 825, Hastelloy C276 |
Products
Buying tips
- Specify straight length or U-bend radius
- State tube OD, wall (BWG/mm) and length
- Request eddy-current testing
- Check tube-to-tubesheet material compatibility
Industries
Frequently asked questions
What is the best material for heat exchangers?
It depends on the service condition. Fresh cooling water: SS 304L or SS 316L; Chloride / brackish water: Duplex 2205 or Super Duplex 2507; Seawater: Titanium Grade 2 or Cupro-Nickel 90/10 or SS 254 SMO; Acids and sour process fluids: Incoloy 825 or Hastelloy C276.
Which product forms are used for heat exchangers?
Tubes, Plates, Flanges.
How should I specify materials for this application?
Specify straight length or U-bend radius. State tube OD, wall (BWG/mm) and length. Request eddy-current testing. Check tube-to-tubesheet material compatibility.