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Name Plate
Standard ASTM A693 (Grade 630), AMS 5604
Material Stainless Steel 17–4 PH
Size Inch 1/4″–3 1/2″
Applications Mechanical parts for the aviation and aerospace industries. Jet engine parts. Fasteners. Cog-wheels. Equipment for the paper industry.
Characteristics Good corrosion resistance. High mechanical strength. Good mechanical quality up to 316°C. Suitable for hot processing. Suitable for chip processing. Weldable.
Similar Materials 1.4542
Thermal State Condition A
Chemical Compound 0.07% Carbon maximum. 0.03% Sulfur maximum. 0.04% Phosphorus maximum. 15–17.5% Chrome. 1% Manganese maximum. 3–5% Copper maximum. 3–5% Nickel maximum. 0.15–0.45% Columbium (Niobium). 1% Silicon maximum. Rest is Iron.

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