Representative Alloys: CA15, CA6NM.

Applications: For good wear & corrosion.

Limitations: CA15 is prone to cracking in heavy sections; special procedures improve stress corrosion cracking resistance.

Typical Uses: Aerospace, gas turbines, marine, petro-chemical, pulp and paper, food processing.

Machinability: Fair to good, based on grade & conditions.

Weldability: Requires post-weld stress relief.

Corrosion Resistance: Good in mildly corrosive environments; good erosion resistance, some grades have very good resistance to cavitations.

Representative Alloys: CF8, CF8M, CN7M.

Applications: Most widely used corrosion resistant Alloys; useful at temperatures from cryogenic to 1000 F (500 C), depending on the grade.

Limitations: Special grades available for applications requiring higher strength, low magnetic permeability, etc.

Typical Uses: Chemical processing, marine, power plant, pulp and paper, fertilizer, food and dairy.

Machinability: Fair.

Weldability: Generally very good; fully austenitic grades may require special procedures.

Corrosion Resistance: Though some grades are used as-cast, heat treatment maximizes corrosion resistance

Representative Alloys: CB7Cu-1 and CB7Cu-2.

Applications: For high-strength requirements (to 175 KSI); a superior combination of strength, toughness and weldability with moderately good corrosion resistance.

Limitations: Should be used in an aged condition.

Typical Uses: Structural parts requiring at least moderate corrosion resistance.

Machinability: Good when in condition A (solutioned).

Weldability: Should be welded in soft condition, then re-solutioned and re-aged.

Corrosion Resistance: Moderate to good.

Representative Alloys: ILLIUM® P, ILLIUM® PD, CD4MCu, CD3MN (2205)

Applications: Where higher strength is advantageous; resisting erosion and corrosion.

Limitations: Some grades difficult to produce in heavy sections.

Typical Uses: Pump parts, mixers.

Machinability: Good.

Weldability: Good to fair. Post-weld heat treatment required.

Corrosion Resistance: Subject to stress corrosion cracking in some media.

Representative Alloys: HK40, HT.

Applications: For high strength and corrosion resistance at temperatures above 1200 F.

Limitations: Exposure to service conditions may degrade room temperature ductility and weldability; cannot be hardened.

Typical Uses: Petrochemical refining, heat treatment furnaces.

Machinability: Fair. Slow feeds and deep cuts recommended.

Weldability: Shielded metal arc welding (SMAW) produces good results.

Corrosion Resistance: Superior resistance to air, combustion gases, flue gases (reducing and oxidizing) and steam.

Representative Alloys: 8620, 4130, WCB, LC3, C5.

Applications: Machine parts, structural components.

Limitations: Low corrosion resistance.

Typical Uses: Knives, cutter blades, die casting dies.

Machinability: Fair to good, depending on grade and condition.

Weldability: Fair to excellent, depending on grade and condition.

Corrosion Resistance: Low.