sus 304 plat

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SUS 304 Plat dan AsPosted on January 14, 2012 by admin

GradesStainless steel grade 304 is the most versatile and widely used stainless steel. It is still sometimes referred to by its old name 18/8which is derived from the nominal composition of type 304 being 18% chromium and 8% nickel. Stainless steel types 1.4301 and1.4307 are also known as grades 304 and 304L respectively.

SUS 304 stainless steel is an austenitic grade that can be severely deep drawn. This property has resulted in 304 being the dominantgrade used in applications like sinks and saucepans.

SUS 304L is the low carbon version of 304. It is used in heavy gauge components for improved weldability. Some products such asplate and pipe may be available as “dual certified” material that meets the criteria for both 304 and 304L. 304H, a high carboncontent variant, is also available for use at high temperatures.

Property data given in this document is typical for flat rolled products covered by ASTM A240/A240M. ASTM, EN or other standardsmay cover products sold. It is reasonable to expect specifications in these standards to be similar but not necessarily identical tothose given in this datasheet.

EquivalentsDINX5CrNi1810, AISI 304, EN X4CrNi18-10, BS304S31, ISO – 11

AvailabilityStainless steel SUS 304 is available in Sheet, Bar, Wire, Rod, Strip, tube, pipe, and Channel.

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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 PropertiesTensile Strength (0.2%) : >= 53 Kgf/MM2Yield Strength : >= 21 Kgf/MM2Elongation : >= 40%Hardness (HB) : <= 187 HB

Corrosion Resistance304 has excellent corrosion resistance in a wide variety of environments and when in contact with different corrosive media. Pittingand crevice corrosion can occur in environments containing chlorides. Stress corrosion cracking can occur at temperatures over60°C.



304 has good resistance to oxidation in intermittent service up to 870°C and in continuous service to 925°C. However, continuoususe at 425-860°C is not recommended if corrosion resistance in water is required. In this instance 304L is recommended due to itsresistance to carbide precipitation.Where high strength is required at temperatures above 500°C and up to 800°C, grade 304H isrecommended. This material will retain aqueous corrosion resistance.

FabricationFabrication of all stainless steels should be done only with tools dedicated to stainless steel materials. Tooling and work surfacesmust be thoroughly cleaned before use.These precautions are necessary to avoid cross contamination of stainless steel by easilycorroded metals that may discolour the surface of the fabricated product.

Cold Working304 stainless steel readily work hardens. Fabrication methods involving cold working may require an intermediate annealing stage toalleviate work hardening and avoid tearing or cracking. At the completion of fabrication a full annealing operation should beemployed to reduce internal stresses

Hot WorkingFabrication methods, like forging, that involve hot working should occur after uniform heating to 1149-1260°C. The fabricatedcomponents should then be rapidly cooled to ensure maximum corrosion resistance.

Heat Treatment304 stainless steel cannot be hardened by heat treatment. Solution treatment or annealing can be done by rapid cooling after heatingto 1010-1120°C.

Machinability304 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 workLow thermal conductivity of austenitic alloys results in heat concentrating at the cutting edges. This means coolants andlubricants are necessary and must be used in large quantities.

WeldingFusion welding performance for type 304 stainless steel is excellent both with and without fillers. Recommended filler rods andelectrodes for stainless steel 304 is grade 308 stainless steel. For 304L the recommended filler is 308L. Heavy welded sections mayrequire post-weld annealing. This step is not required for 304L. Grade 321 may be used if post-weld heat treatment is not possible.



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Applications304 stainless steel is typically used in:

Sinks and splashbacksSaucepansCutlery and flatwareArchitectural panellingSanitaryware and troughsTubingBrewery, dairy, food and pharmaceutical production equipmentSprings, nuts, bolts and screwsMedical implants



sus 304 plat

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