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DESCRIPTION

.17-7 Steel Coil, Foil, Wire, AMS 5528 (CONDA), AMS 5529 (COND C), ASTM A693, MIL-S25043

APPLICATIONS：Springs，Washers，Clips，Surgical parts, Blades, Bellows, Honeycomb

DESCRIPTION

Type 17-7PH® Precipitation Hardening Alloy is a semi-austenitic stainless steel which is austenitic in the annealed condition, but martensitic in the hardened condition.   

Type 17-7PH® provides high strength and hardness, excellent fatigue properties, good corrosion resistance and minimum distortion upon heat treatment.  

It is easily formed in the annealed condition, then hardened to high strength levels by simple heat treatments to Conditions RH 950 and TH 1050.   

The exceptionally high strength of Condition CH 900 offers many advantages where limited ductility and workability are permissible.   In its heat treated condition, this alloy provides exceptional mechanical properties at temperatures up to 900 °F (482 °C).

CHEMISTRY TYPICAL

Carbon: 0.090 maxManganese: 1.00 max

Silicon: 1.00 max

Chromium: 16.00- 18.00

Nickel: 6.50- 7.75

Aluminum: 0.75-1.50

Phosphorus: 0.040 max

Sulfur: 0.030 maxIron: Balance

PHYSICAL PROPERTIES

Density: (Cond.   A): 0.282 lbs/in3 7.80 g/cm3Electrical Resistivity: (microhm-cm) (all conditions): 60 °F (20 °C): 80Thermal 

Conductivity: BTU/hr/ft2/ft/°F (W/m•K)At 300 °F (149 °C): 9.5 (16.5)

Mean Coefficient of Thermal Expansion: in/inl°F (µm/m•K): (Cond.   A):70 -200 °F (21 -93 °C): 8.5 x 10-5 (15.3)70 -400 °F (21 -204 °C): 9.0 x 10-5 (16.2)70 -600 °F (21 -315 °C): 9.5 x 10-5 (17.1)70 -800 °F (21 -427 °C): 9.6 x 1 o-6 (16.0)Modulus of Elasticity: ksi (MPa)29 x 103 (200 x 103) in tensionMagnetic Permeability:Annealed: Weakly ferromagneticHeat treated: Strongly ferromagneticFORMSStrip Coil17-7PH Stainless Steel Strip17-7PH Stainless Steel Foil17-7PH Stainless Steel RibbonWire Products17-7PH Stainless Steel Shaped Wire & Profile Wire17-7PH Stainless Steel Round Wire17-7PH Stainless Steel Flat Wire17-7PH Stainless Steel Square WireMECHANICAL PROPERTIES AT ROOM TEMPERATUREPROPERTIES OF 17-7PH IN THE ANNEALED CONDITIONGauge Range:<.  010 inchesUltimate Tensile Strength: 150 KSI max (1035 MPa max)Yield Strength (0.2% offset): 65 KSI max (450 MPa max)Elongation: Consult Ulbrich Technical ServicesGauge Range: >   .010 inchesUltimate Tensile Strength: 150 KSI max (1035 MPa max)Yield Strength (0.2% offset): 55 KSI max (380 MPa max)Elongation: 20% minHardness: Rb 92 maxTypical Condition CUltimate Tensile Strength: 200 KSI min (1380 MPa min)Yield Strength (0.2% offset): 175 KSI min (1205 MPa min)Elongation: 1 % minHardness: Re 41 min (aim)ADDITIONAL ROLLED TEMPERS:Consult Ulbrich Technical Services if tempers other than Condition C are required.HEAT TREATMENT OF 17-7PH STAINLESS STEELTH 1050 TypicalUltimate Tensile Strength: 180 KSI min (1240 MPa min)Yield Strength: (0.2% Offset) 150 KSI min (1034 MPa min)Elongation: Consult Ulbrich Technical ServicesHardness: Re 38 minRH950 TypicalUltimate Tensile Strength: 210 KSI min (1450 MPa min)Yield Strength: (0.2 Offset) 190 KSI min (1310 MPa min)Elongation: Consult Ulbrich Technical ServicesHardness: Re 44 minCH900 TypicalUltimate Tensile Strength: 240 KSI min (1655 MPa min)Yield Strength: (0.2% Offset) 230 KSI min (1586 MPa min)Elongation: 1 % minHardness: Re 46 min (aim)ADDITIONAL PROPERTIESCORROSION RESISTANCE OF 17-7PH STAINLESS STEELRefer to NACE (National Association of Corrosion Engineers) for recommendations.

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