Plat Stainless Steel 304

 pl2421992-201_304_316_310s_430_904_4_x_8_bahan_stainless_steel

Bisalloy400 is a through hardened, abrasion resistant steel plate , offering long life expectancy in high impact abrasion applications.

Chemical Composition (%)

Thickness C P Mn Si S Cr Mo B CE

(IIW)*

CET*
5 – 0.18 0.025 1.5 0.25 0.008 0.25 0.25 0.002 0.40 0.29
>= 16 – 80 Maximum 0.20 0.025 1.5 0.25 0.008 0.30 0.25 0.002 0.50 0.35
> 80 – 100 Maximum 0.18 0.025 1.5 0.25 0.008 1.20 0.25 0.002 0.58 0.34

Fabrication

Bisalloy400 is high hardness, abra sion resistant steel offering very good impact toughness properties.

Bisalloy400 provides an optimum combination of abrasion resistant, toughness and weldability. Due to its low alloy content, Bisalloy400 can be readily welded using conventional welding processes and low hydrogen consumables.

Cold forming of Bisalloy400 is achievable on all thicknesses although an allowance for the higher strength should be taken into account. Bending machine capabilities should also be taken into consideration prior to any forming operation. Heating above 250ºC should be avoided, otherwise mechanical properties may be affected.

Mechanical Properties

Properties Specification Typical
0,2% Proof Stress 1070 MPa
Tensile Strength 1320 MPa
Elongation in 50mm G.L 14%
Charpy Impact (longitudinal) +20ºC (10mm x 10mm) 55 J
Hardness 370 – 430 HB 400 HB

Application

Bisalloy400 offers excellent wear and abrasion resistant and impact toughness in applications which include:

• Dump Truck Wear Liners

• Screw Conveyors

• Chutes

• Storage Bins

• Earth Moving Buckets

• Cyclones

• Deflector Plates

• Ground Engaging Tools

• Cutting Edges

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.These precautions 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
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