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High Performance Alloys stocks and produces Inconel in this grade in the following forms: Bar, square bar, wire cuts, sheet, plate, tube, pipe, fastener, disk, machined, forged. Request quote on this grade.

Inconel is a ast, with excellent resistance to pitting, crevice and corrosion cracking. Inconel is highly resistant in a wide range of organic and mineral acids. Good high temperature strength. During machining these alloys work harden rapidly, generate high heat during cutting, weld to the cutting tool surface and offer high resistance to metal removal because of their high shear strengths.

The following are key points which should be considered during machining operations:. Change to sharpened tools at regular intervals rather than out of necessity.

Negative rake angle tools can be considered for intermittent cuts and xstm stock removal. Carbide-tipped tools are suggested for most asfm. High speed tools can be used, with lower production rates, and are often recommended for intermittent cuts. If feed slows and the tool dwells in the cut, work hardening occurs, tool life deteriorates and close tolerances are impossible.

Detailed machining parameters are presented Tables 16 and General plasma cutting recommendations are presented in Table A water-base coolant mist may also be effective.

ASTM B444 Inconel 625 Seamless Pipe and Tube

A viscosity at degrees F from 50 to SSU. Dilute with water to make Water-base coolant may cause chipping and rapid failure of carbide tools in interrupted cuts. A viscosity at degree F from 50 to SSU. Characteristics Excellent mechanical properties at both extremely low and extremely high temperatures. Outstanding resistance to pitting, crevice corrosion and intercrystalline corrosion.


Almost complete freedom from chloride induced stress corrosion cracking. High resistance to oxidation at elevated temperatures up to C.

Good resistance to acids, such as nitric, phosphoric, sulfuric and hydrochloric, as well as to alkalis makes possible the construction of thin structural parts of high heat transfer. Applications Components where exposure to sea water and high mechanical stresses are required. Oil and gas production where hydrogen sulfide and elementary sulfur exist at temperature in excess of C.

Components exposed to flue gas or in flue gas desulfurization plants. Flare stacks on offshore oil platforms. Hydrocarbon processing from tar-sand and oil-shale recovery projects. Dry2, oil3, or water-base coolant4.

Normal roughing Turning or Facing C-2 or C-3 grade: Dry, oil, or water-base coolant. Finishing Turning or Facing C-2 or C-3 grade: Dry or water-base coolant. Rough Boring C-2 or C-3 grade: If brazed tool bar, grind 0 degree back rake, 10 degree pos. Dry, oil or water-base coolant. Finish Boring C-2 or C-3 grade: Use standard positive rake tools on insert type bars. Grind brazed tools as for finish turning and facing except back rake may be best at 0 degrees. Use positive axial and radial rake, 45 degree corner angle, 10 degree relief angle.

Oil or waterbase coolants will reduce thermal shock damage of carbide cutter teeth. End Milling Not recommendedbut C-2 grades may be successful on good setups.

ASTM B444 UNS N06625 steel pipe

Same as high speed steel. Oil or water-base coolants will reduce thermal shock damage. Drilling C-2 grade not recommended, but tipped drills may be successful on rigid setup if no ast depth. The web must thinned to reduce thrust.


Use degree included angle on point.

ASTM B Seamless Pipe, ASTM B Seamless Tube, ASTM B Inconel Tubing.

Gun drill can be used. Oil or water-base coolant. Coolant-feed carbide tipped drills may be economical in some setups.

Reaming C-2 or C-3 grade: Tipped reamers recommended, solid carbide reamers require vary good setup. Tool geometry same as high speed steel. Tapping Not recommended, machine threads, or roll-form them. Others may be added and should be equally suitable.

Table 18 Plasma Arc Cutting Our alloys can be cut using any conventional plasma arc cutting system. The best arc quality is achieved using a mixture of argon and hydrogen gases. Nitrogen gas can be substituted for hydrogen gases, but the cut quality will deteriorate b444.

Shop air or any oxygen bearing gases should be avoided when plasma cutting these alloys. Reproduction of this site in whole or part is prohibited without the expressed permission of High Performance Alloys, Inc. Please give us a Review. Turning or Facing C-2 and C-3 grade: Turning or Facing C-2 or C-3 grade: C-2 or C-3 grade: Carbide not generally successful, C- grade may work. Not recommendedbut C-2 grades may be successful on good setups.

C-2 grade not recommended, but tipped drills may be successful on rigid setup if no great depth. Our alloys can be cut using any conventional plasma arc cutting system.