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Durable 303 Polished Stainless Steel Rod Cold Drawn Excellent Toughness

    Buy cheap Durable 303 Polished Stainless Steel Rod Cold Drawn Excellent Toughness from wholesalers
     
    Buy cheap Durable 303 Polished Stainless Steel Rod Cold Drawn Excellent Toughness from wholesalers
    • Buy cheap Durable 303 Polished Stainless Steel Rod Cold Drawn Excellent Toughness from wholesalers
    • Buy cheap Durable 303 Polished Stainless Steel Rod Cold Drawn Excellent Toughness from wholesalers

    Durable 303 Polished Stainless Steel Rod Cold Drawn Excellent Toughness

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    Brand Name : UST
    Model Number : 300 Series- 303
    Certification : ISO 9001
    Price :
    Payment Terms : L/C, T/T
    Supply Ability : 1000 Metric Tons per Month
    Delivery Time : 5-8 work days
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    Durable 303 Polished Stainless Steel Rod Cold Drawn Excellent Toughness

    303 Stainless Steel- 300 Series Stainless round bar/ flat bar/ coil

    303 Stainless Steel


    Shanghai unite steel inventory includes 303 grade stainless steel (UNS S30300) in plate, round bar, square bar, hex bar, and rolled flat bar.


    General Properties

    Alloy 303 is a non-magnetic, austenitic stainless steel that is not hardenable by heat treatment. It is the free machining modification of the basic 18% chromium / 8% nickel stainless steel. Alloy 303 was specially designed to exhibit improved machinability while maintaining good mechanical and corrosion resistant properties Due to the presence of sulfur in the steel composition, Alloy 303 is the most readily machineable austenitic stainless steel; however, the sulfur addition does lower Alloy 303’s corrosion resistance to below that of Alloy 304. Like other austenitic grades, Alloy 303 demonstrates excellent toughness, although the sulfur does reduce this a little as well.

    Applications

    Alloy 303 is frequently used in applications that require parts to be heavily machined. Some examples include:

    • Nuts and bolts
    • Aircraft fittings
    • Gears
    • Screws
    • Shafts
    • Electrical switchgear components
    • Bushings

    Standards – Alloy 303

    ASTM/ASME ……………. UNS S30300

    EURONORM ……………. FeMi35Cr20Cu4Mo2

    DIN ………………………… 2.4660


    Corrosion Resistance

    • Good resistance to mildly corrosive atmospheres, but significantly less than Alloy 304
    • When additional sulfur is added to improve machinability, it can often slightly reduce corrosion resistance
    • In most dry and mild corrosive environments, Alloy 303 is comparable to other unmodified alloys
    • Should not be exposed to moist, marine environments as it is subject to rapid-pitting corrosion and a rust film will tend to form
    • Like other common austenitic stainless steels, it is subject to corrosion cracking in chloride environments above 60oC

    Heat Resistance

    • Good oxidation resistance at temperatures up to 1700oF (927 oC)
    • Continuous use at temperatures above 1400oF (760oC) is not usually recommended due to carbide precipitation which can lead to irregular scaling
    • Does not have a low carbon content so it is also vulnerable to sensitisation

    Welding Characteristics

    • Not generally recommended, but may be welded with some difficulty
    • May be welded with Alloy 310 electrodes
    • Should be annealed after welding to re-dissolve precipitated carbides

    Machinability

    • High machining rates can be obtained in the annealed condition with hardness in the range of 200 to 240 Brinell
    • Will work harden, therefore, it should be machined at reduced surface feet per minute and heavier feeds to prevent glazing at the tool interface.

    Chemical Properties:

    %CrNiCSiMnPSMoFe
    303min: 17.0
    max:19.0
    min: 8.0
    max: 10.0
    0.15
    max
    1.00
    max
    2.0
    max
    0.20
    max
    0.15
    min
    0.75balance

    Mechanical Properties:

    GradeTensile Strength
    ksi (min.)
    Yield Strength 0.2%
    Offset ksi (min.)
    Elongation -
    % in
    50 mm (min.)
    Hardness
    (Brinell) MAX
    Hardness
    (Rockwell B) MAX
    303753035228

    Physical Properties:

    Denstiy
    lbm/in3
    Coefficient of
    Thermal Expansion (min/in)-°F
    Electrical Resistivity mW-inThermal Conductivity BTU/hr-ft-°FMelting
    Range
    at 68 °Fat 68 – 212°Fat 68 – 932°Fat 68 – 1450°Fat 68°Fat 212°Fat 392°Fat 752°Fat 1112°Fat 1472°Fat 68 – 212°F
    0.299.210.410.928.330.733.839.443.747.6113.22552°F

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    Quality Durable 303 Polished Stainless Steel Rod Cold Drawn Excellent Toughness for sale
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