AISI304 stainless steel sheet no.4 finish decorative material Specifications

304 Stainless Steel Sheet
1.Stockist manufacture Mnaufacture
2.Can product as request
3.Lowest price

304 stainless steel sheet

1.304 Stainless steel sheet Detailed introduction :

Description	steel sheet,hot rolled steel sheet,cold rolled steel sheet, steel sheet,sheet,steel plate
Material	201,202,304,304L,309S,310S,316,316L,316Ti,317L,321,347H,409,409L,410,410S,420,430,etc.
Thickness	From 0.3mm to 100mm
Width	1000mm,1219mm,1250mm,1500mm,1800mm,2200mm or be cut as your requirement
Length	2000mm,2438mm,2500mm,6000mm,6096mm or be cut as your requirement
Standard	ASME, ASTM, EN ,BS,GB,DIN, JIS etc
Application	Steel sheet applies to construction field, ships building industry, petroleum & chemical industries, war and electricity industries, food processing and medical industry, boiler heat exchanger, machinery and hardware fields.
Packaging	Standard export sea-worthy packing
Delivery time	5-10 days
Quality	No.1
Productivity	500 tons/month
Note	Our company has cooperative relation between the domestic agents. Stainless steel sheet can be made accordingto the customers requirements. Fasten delivery. Quality assured.
Contacts	If you have any question,please feel free contact me.

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

2. 304 Stainless steel sheet Chemical Composition and Physical Properties :

Chemical Composition of Stainless Steel 304

Table 1. Typical chemical composition for 304 stainless steel alloys % 304 304L 304H C 0-0.07 0-0.03 0.04-1 Mn 0-2.0 0-2.0 0-2.0 Si 0-1 0-1 0-1 P 0-0.05 0-0.05 0-0.05 S 0-0.02 0-0.02 0-0.02 Cr 17.5-19.5 17.5-19.5 17.5-19.5 Ni 8-10.5 8-10.5 8-10.5 Fe Balance Balance Balance

Properties of Stainless Steel 304

Mechanical Properties of Stainless Steel 304 Table 2. Typical mechanical properties for 304 stainless steel alloys Grade 304 304L 304H Tensile Strength (MPa) 520-720 500-6070 520-720 Compression Strength (MPa) 210 - - Proof Stress 0.2% (MPa) 210 200 210 Elongation A5 (%) 45 Min 45 Min 40 Min Hardness Rockwell B 92 - - Physical Properties of Stainless Steel 304 Table 3. Typical physical properties for 304 stainless steel alloys Property Value Density 8.00 g/cm3 Melting Point 1450°C Modulus of Elasticity 193 GPa Electrical Resistivity 0.072x10-6 Ù.m Thermal Conductivity 16.2 W/m.K Thermal Expansion 17.2x10-6 /K

Corrosion Resistance of StainlessSteel 304

Stainless steel 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.

Heat Resistance of Stainless Steel 304

Stainless steel 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 of Stainless Steel 304

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 of Stainless Steel 304

Stainless steel 304 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 and optimise corrosion resistance.

Hot Working of Stainless Steel 304

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 of Stainless Steel 304

Stainless steel 304 cannot be hardened by heat treatment.

Solution treatment or annealing can be done by rapid cooling after heating to 1010-1120°C.

Machinability

Stainless steel 304 has good machinability. Machining can be enhanced by 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 of Stainless Steel 304

Fusion welding performance for Stainless steel 304 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.

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