Tabel Ukuran dan Berat Plat Stainless Steel
304
|
Stainless Steel
|
Thickness
|
Size
|
Berat (Kg)
|
|
|
Plate 304
|
1 mm
|
x
|
4′ x 8′
|
23.6
|
|
Plate 304
|
2 mm
|
x
|
4′ x 8′
|
47.2
|
|
Plate 304
|
3 mm
|
x
|
4′ x 8′
|
70.8
|
|
Plate 304
|
4 mm
|
x
|
4′ x 8′
|
94.4
|
|
Plate 304
|
5 mm
|
x
|
4′ x 8′
|
118
|
|
Plate 304
|
6 mm
|
x
|
4′ x 8′
|
141.6
|
|
Plate 304
|
8 mm
|
x
|
4′ x 8′
|
188.8
|
|
Plate 304
|
10 mm
|
x
|
4′ x 8′
|
236
|
|
Plate 304
|
12mm
|
x
|
4′ x 8′
|
283.2
|
SPESIFIKASI
Chemical Composition
|
C
|
Si
|
Mn
|
P
|
S
|
Ni
|
Cr
|
||
|
0.08 Max
|
1.00 Max
|
2.00 Max
|
0.045 Max
|
0.03 Max
|
8 – 10.5
|
18.00-20.00
|
Mechanical Properties
Tensile Strength (0.2%) : >= 53 Kgf/MM2
Yield Strength : >= 21 Kgf/MM2
Elongation : >= 40%
Hardness (HB) : <= 187 HB
Corrosion Resistance
304 has excellent corrosion resistance in a wide variety of
environments and when in contact with different corrosive media. Pitting and
crevice corrosion can occur in environments containing chlorides. Stress
corrosion cracking can occur at temperatures over 60°C.
304 has good resistance to oxidation in intermittent service up
to 870°C and in continuous service to 925°C. However, continuous use at
425-860°C is not recommended if corrosion resistance in water is required. In
this instance 304L is recommended due to its resistance to carbide precipitation.Where high strength is required at
temperatures above 500°C and up to 800°C, grade 304H is recommended. This
material will retain aqueous corrosion resistance.
Fabrication
Fabrication of all stainless steels should be done only with
tools dedicated to stainless steel materials. Tooling and work surfaces must be
thoroughly cleaned before use.Theseprecautions are
necessary to avoid cross contamination of stainless steel by easily corroded
metals that may discolour the surface of the fabricated product.
Cold Working
304 stainless steel readily work hardens. Fabrication methods
involving cold working may require an intermediate annealing stage to alleviate
work hardening and avoid tearing or cracking. At the completion of fabrication
a full annealing operation should be employed to reduce internal stresses
Hot Working
Fabrication methods, like forging, that involve hot working
should occur after uniform heating to 1149-1260°C. The fabricated components
should then be rapidly cooled to ensure maximum corrosion resistance.
Heat Treatment
304 stainless steel cannot be hardened by heat treatment.
Solution treatment or annealing can be done by rapid cooling after heating to
1010-1120°C.
Machinability
304 stainless steel has good machinability. Machining can be
enhanced using the following rules:
§ Cutting
edges must be kept sharp. Dull edges cause excess work hardening.
§ Cuts
should be light but deep enough to prevent work hardening by riding on the
surface of the material.
§ Chip
breakers should be employed to assist in ensuring swarf remains clear of the
work
§ Low
thermal conductivity of austenitic alloys results in heat concentrating at the
cutting edges. This means coolants and lubricants are necessary and must be
used in large quantities.
Welding
Fusion welding performance for type 304 stainless steel is
excellent both with and without fillers. Recommended filler rods and electrodes
for stainless steel 304 is grade 308 stainless steel. For 304L the recommended
filler is 308L. Heavy welded sections may require post-weld annealing. This
step is not required for 304L. Grade 321 may be used if post-weld heat
treatment is not possible.
Applications
304 stainless steel is typically used in:
§ Sinks
and splashbacks
§ Saucepans
§ Cutlery
and flatware
§ Architectural
panelling
§ Sanitaryware
and troughs
§ Tubing
§ Brewery,
dairy, food and pharmaceutical production equipment
§ Springs,
nuts, bolts and screws
§ Medical
implants
