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PH15-7Mo

PH15-7Mo, Type 632, UNS S15700, 1.4532, 15Cr-7Ni, 07Cr15Ni7Mo2Al

PH15-7Mois a chromium-nickel-molybdenum-aluminum semi-austenitic precipitation-hardening stainless steel that provides high strength and hardness, good corrosion resistance and minimum distortion upon heat treatment. It is easily formed in the soft austenitic annealed condition and develops an effective balance of properties by simple heat treatments. 

PH15-7Mois similar to 17-7PH.Itis designed with substitution of approximately 2.0 percent molybdenum for 2.0 percent chromium in the S17700 alloy. This results in somewhat higher room and elevated temperature strength for thePH15-7Mo.

PH15-7Mois particularly beneficial for applications requiring high strength at elevated temperatures. 

For applications requiring exceptionally high strength，cold-reduced PH15-7MoStainless Steel in Condition CH900 is particularly useful for applications permitting only limited ductility and workability. 

The corrosion resistance ofPH15-7Moisnot quite as good asthat of Type 304 stainless steel in most media. In general, the corrosion resistance of 17-7PHis superior to that of the hardenable 400 series stainless steels.

Solution heat treated condition

Tensile Strength: 150 KSI min (1035 MPa min)

Yield Strength(0.2% Offset): 55 KSI min(379 MPa min)

Elongation: 20% min

Hardness: HRB92 max.

Afterausteniteconditioning andprecipitationheattreated

Ultimate Tensile Strength: 200 KSI min (1380 MPa min)

Yield Strength: 175 KSl min (1205 MPa min)

Elongation: 1%min

Hardness: HRC41 min.

Solution Heat Treatment

Tubing shall be solution heat treated by heating to 1950±25°F (1066℃±14℃), holding at heat for a time commensurate with wall thickness and heating equipment and procedure used, and cooling in air or quenching in water.

Afterausteniteconditioning andprecipitationheattreating, tubing shall have the properties shown inaboveafter being austenite conditioned by heating to 1400±25°F (760±14°C), holding at heat for 90±5 minutes, cooling to 55±5°F (13±3℃) within one hour, holding at that temperature for not less than 30 minutes, and precipitation heat treated by heating to 1050±10°F (566±6℃), holding at heat for 90±5minutes, and cooling to room temperature.

(1)Hot formed, solution treated, descaled

(2)Cold worked and bright annealed

Chemical composition

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Positive Material Identification