SS 904L

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17-4 PH ROUND BAR & PLATES

Industry Names: 17-4PH17-4 Stainless630

Material: Stainless Steel

Specifications: ASME SA693 ASME TYPE 630 ASTM TYPE 630 UNS 517400

Applications: Fasteners Gears Pump Shafts

Features: Corrosion Resistant High Tensile and Hardness up to 600° F

Shapes Available: Flat Bar, Hex Bar, Plate, Round Bar, Sheet, Square Bar

Industries: Aerospace, Manufacturing, Nuclear, Wind Power

17-4 Stainless Steel is a highly versatile and widely used precipitation-hardening alloy used in a number of aerospace, nuclear energy and chemical processing applications. One of the original “PH” (precipitation hardening) grades, 17-4 delivers a combination of oxidation and corrosion resistance along with a high strength, toughness and capability of achieving numerous quality mechanical properties through heat treating at various temperature ranges. 17-4 can be machined in the annealed condition and in the heat treated state. Maximum toughness is achieved by aging at 1150°F, while maximum strength is attained through aging at 900°F.


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Property Value
Electrical Resistivity 463 Ohms (circ mil./ft.)
Melting Range 2560-2625 °F
Poisson's Ratio 0.272
Density 0.282 lb/inch³

 

Element Min Max
C - .07
Cb+Ta 5xC .45
Cr 15.0 17.5
Cu 3.0 4.0
Fe - Bal
Mn - 1.0
Mo - .05
Ni 3.0 5.0
P - .07
S - .03
Si - 1.0