22 Ga 304 #4 Finish Stainless Steel Sheet 12" x 24"
This is the #4 brushed
finish.
1 piece, but we have many
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304/304L dual certified stainless sheet is a very low carbon
"18-8" austenitic chromium-nickel steel with good corrosion
resistance and superior resistance to intergranular corrosion following welding
or stress relieving. It is a flat rolled product produced by continuous mill
rolling. The low carbon content limits the formation of harmful carbides to
such an extent that this grade may be safely used for most operations of welded
construction, and where the service temperature is limited to 800° F. It is
non-magnetic in the annealed condition and not hardenable by heat treatment.
Both hardness and tensile strength can be increased by cold working, which may
cause slight magnetism. The dual certified 304/304L sheet meets specifications
for both 304 and 304L stainless steel, and may be interchanged and used safely
for either grades application. 304/304L stainless sheet is available in the
common 2B finish (cold rolled on polished rolls, annealed, pickled, and skin
passed on polished rolls), and #4 finish (polished with fine abrasive finish,
giving a "brushed" look), and is sheared to size for rectangular and
square shapes, or can be supplied in rounds, rings, or shapes on our Speedy
Metals high definition plasma cutter.
ANALYSIS
Carbon (C)
Manganese (Mn)
Silicon (Si)
Chromium (Cr)
Nickel (Ni)
Copper (Cu)
Max
Molybdenum (Mo)
Max
Phosphorus (P)
Sulfur (S)
0.03
2
1
18-20
8-12
0.75
0.75
0.04
0.03
304/304L stainless sheet generally
conforms to ASTM A167, ASTM A240, AMS 5513, MIL-S-5059
MECHANICAL PROPERTIES
Tensile Strength
(PSI)
Yield Strength
(PSI)
Reduction of Area
Elongation in
2"
Brinell Hardness
100,000
40,000
70
40
142-165
The above values are average and
may be considered as representative of 304/304L stainless sheet
APPLICATIONS
304/304L is used almost exclusively
for parts requiring machining, welding, grinding, or polishing where good
corrosion resistance is also required. It is a good general all-purpose
stainless grade. Good in corrosive environments as in paper and chemical
industries and cryogenic services. Used where corrosion resistance and good
mechanical properties are primary requirements. 304/304L is widely accepted in
such industries as dairy, beverage, and other food industries where the highest
degree of sanitation and cleanliness is of prime importance. Parts for handling
acetic, nitric, and citric acids, organic and inorganic chemicals, dyestuffs,
crude and refined oils, etc., are fabricated from this material. Because of its
lack of magnetism it is highly desirable for instruments. It is also widely
used for architectural trim. 304 sheets are used in applications where
corrosion resistance is required, but elevated temperatures are not involved.
304/304L finds particular use in applications requiring welding. 304/304L has
good drawing, forming, and stamping properties.
MACHINEABILITY AND WELDABILITY
Machinability is rated at 45% of
B1112. Average cutting speed 75 ft/min. Easily welded by all commercial
processes except forge or hammer welding. The resultant weld has good toughness
and ductility. Annealing is recommended after forging to maintain maximum
corrosion resistance. 304/304L can be forged between 2100°-2350° F. Do not
forge below 1700° F.
HEAT TREATING
304/304L is not hardenable by heat
treatment. Cold working increases tensile strength and hardness. Annealing
range is between 1850° and 2050°F. Cool rapidly. Water should be used for
heavier sections; air for lighter sections. The stress relieving range is
between 400° and 750°F.