AISI Type 17-7 Stainless Steel
AISI Type 17-7 is a precipitation hardening stainless steel that
provides high strength and hardness, excellent fatigue properties,
good corrosion resistance, good formability, and mini- mum
distortion upon heat treatment. The alloy provides valuable
property combinations particularly well suited for aerospace
This special alloy also provides benefits for other applications
requiring high strength and good corrosion resistance, as well as
excellent properties for flat springs at temperatures up to 600°F
AISI type 303 stainless steel wire is the most readily machinable of all the austenitic grades of
stainless steel. The machinable nature is due to the presence of
sulphur in the steels composition.
The sulphur improves machining, though it also causes a decrease in
the corrosion resistance and a
slight lowering of the toughness. The corrosion resistance of 303
is lower than that of 304.
Type 303 is most commonly used in nuts, bolts, screws, gears,
aircraft fittings, and bushings.
AISI Type 410 stainless steel is a martensitic (high-strength iron/chromium).
Type 410 is wear-resistant, but less corrosion-resistant than many
AISI Type 416 stainless steel wire is easily machinable due to additional sulfur.
Type 416 stainless is an electric furnace processed, magnetic,
free-machining grade of the martensitic stainless steels. It is a
modification of Type 410 with approximately .30% sulfur added for
excellent machinability. Like Type 410, it has an exceptionally
wide range of mechanical properties obtainable through heat
treating, This grade of stainless steel has the highest
machinability of all grades now developed, and can often be used in
the "as machined" condition without heat treatment.
Because of its excellent machinability, corrosion resistance, and
Type 416 is normally used for applications requiring extensive or
high speed machining such as:
nuts and bolts; pump parts; screw machine parts; and etc.
This grade has very good overall corrosion resistance to normal
atmospheric conditions, mildly corrosive chemicals, and acidic or
alkaline water. Hardening and polishing increases its corrosion to
its maximal level. Resists scaling at temperatures up to
approximately 1300° F.
AISI type 420 stainless steel wire has fair-to-good corrosion resistance and good material strength.
Type 420 resists corrosion from alcohol, ammonia, food
environments, fresh water, many petroleum products and organic
materials and some mild acid environments. They are found in
bearings, valves, lighters and writing instruments.
AISI type 430 stainless steel wire provides fair to-good corrosion resistance.
Type 430 resists corrosion from fresh water, steam, food
environments, dairy products, nitric acid and
many petroleum products and organic material. Applications include
balls in cosmetics agitators such as nail polish and eyeliners, as
dispenser pump balls and valve balls.
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