SHANGHAI YIEH UNITED CORPORATION

SHANGHAI YIEH UNITED CORPORATION
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303 Stainless Steel Sheet/Plate

303 Stainless Steel Sheet/Plate

1. Thickness:0.1mm - 80mm
Width:800mm - 2,000mm
Length:300mm - 12,000mm

2. Surface:2B/HL/NO.4/8K
perforated,colored,checkered

3. Grades: Type 303 Stainless Steel

4. PVC film: Novacel(laser cutting)
Nitto(deep drawing)

5.Standards: ASTM A895

  • Alloy 303 (UNS S30300) is an austenitic stainless steel developed for applications requiring extensive machining operations. The alloy has a sulfur addition which assists in breaking up turning while reducing drag on the cutting tool when compared to the machining characteristics of the conventional 18-8 stainless steels.

    STANDARD CHEMICAL COMPOSITION

    % Cr Ni C Si Mn P S Mo Fe
    303 min: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    		 0.75 balance


    NOMINAL MECHANICAL PROPERTIES

    Grade Tensile Strength ksi(min.) Yield Strength 0.2% offset ksi (min.) Elongation - % in 50 mm (min.) Hardness (Brinell) MAX Hardness (Rockwell B) MAX
    303 75 30 35 228 -


    NOMINAL PHYSICAL PROPERTIES

    Density
    lb m/in3    		 Coefficient of Thermal Expansion (min/in)-ºF Electrical Resistivity mW-in Thermal Conductivity
    BTU/hr-ft-ºF    		 Melting Range
    at 68ºF at 68- 212ºF at 68-932ºF at 68- 1450ºF at 68ºF at 212ºF at 392ºF at 752ºF at 1112ºF at 1472ºF at 68-212ºF
    0.29 9.2 10.4 10.9 28.3 30.7 33.8 39.4 43.7 47.6 113.2 2552ºF


    APPLICATION OF 303 STAINLESS STEEL SHEET/PLATE:

    • Fittings
    • Pump and Valve Components
    • Screw Machine Products
    • Aerospace Parts

    303 stainless steel for machining

  • ADDITIONAL PROPERTIES OF 303 STAINLESS STEEL SHEET/PLATE

    • Heat Treatment
      Annealing - Heat to a minimum temperature of 1900ºF (1038ºC) and water quench or rapid cool by other means.
      Hardening - Alloy 303 cannot be hardened by thermal treatment, it can only be hardened by cold working.
    • Cold Forming
      The cold formability of alloy 303 is adversely impacted by the high sulfur content. The alloy may be bent with a generous bend radius, however, when cold forming is required, 304 should be utilized.
    • Hot Forming
      The high sulfur content of alloy 303 also has a detrimental impact on hot workability. If hot forming is required, once again, 304 should be considered as an alternate selection.
    • Machining
      Alloy 303 was developed specifically for ease of machining. The sulfur addition assists in breaking up turnings which reduces drag on the cutting tool. It produces small brittle chips and may be machined at high speeds with deep cuts and heavy feed.

      MACHINABILITY High Speed Tooling Carbide Tooling Depth. Width or Diameter of Tool
      Speed (sfm) Feed (in./rev) Speed (sfm) Feed (in./rev) (in.)
      (dia./in/)
      Turning 115
      135      		 0.0150
      0.0050      		 375
      600      		 0.025
      0.007      		 0.005-0.200
      Cut-off 90
      100      		 0.0015
      0.0025      		 275
      325      		 0.002
      0.004      		 1/16
      1/4
      Forming 100
      100      		 0.0020
      0.0015      		 375
      350      		 0.003
      0.002      		 1
      2
      Drilling 70
      85
      100      		 0.0060
      0.0100
      0.0200      		 -
      700
      800      		 -
      0.005
      0.007      		 1/4
      1/2
      1-2
      Reaming 90
      90      		 0.0050
      0.0150      		 -
      -      		 -
      -      		 1/4
      1-2
      End Milling 130
      130      		 0.0030
      0.0060      		 300
      350      		 0.004
      0.009      		 1/2
      1-2
      Tapping and Threading 10
      40      		 -
      -      		 -
      -      		 -
      -      		 7 threads/in.
      25 threads/in.
    • Welding
      Alloy 303 is not recommended for applications requiring welding. If it is necessary to weld the alloy, AWS E312 fillter metal may be considered.

  • SURFACE FINISH OF 303 STAINLESS STEEL SHEET/PLATE :

    *Not all finishes are available in all alloys - (contact Yieh United Sales for more information)

    #1 Finish Hot rolled, annealed and pickled.
    #2D Finish A uniform, dull silver gray mill finish that is applied to thinner stainless steel coils,the thickness of which has been reduced by cold rolling.
    #2B Finish A semi polished surface achieved by finishing with the equivalent of a 80 to 120 grit abrasive. This finish has a pronounced grit line.
    #3 Finish A semi polished surface achieved by finishing with the equivalent of a 80 to 120 grit abrasive. This finish has a pronounced grit line.
    #4 Finish Also called brushed, directional or satin finish. A is characterized by fine polishing grit lines that are uniform and directional in appearance. The final abrasive used in the process is 150 to 220 grit.
    #4 Satin Brush Finish 150 to 180 grit finish A fine directional polish, typically used in the washroom accessories industry. Most 3.5″ floppy diskette cover plates have this finish.
    #6 Finish Polished finish achieved with the equivalent of a 240 grit abrasive. Finer grit lines and higher reflectivity than a No. 4 finish.
    #7 Finish Highly reflective surface obtained with the equivalent of a 320 grit abrasive. Minimal grit lines.
    No. 8 or True #8 mirror This is the most reflective mirror finish on the market. All of the polishing, or “grit,” lines from the preliminary polishing operations are removed. The look is that of a glass mirror. Sometimes referred to as a non directional mirror finish, Super 8, No. 9, Perfect No. 10, and even No. 12 mirror.
    CMP Super #8 mirror Chemical Mechanical Polished Super #8 mirror finished sheets are guaranteed to be free from any manufacturing defects. This product represents the ultimate in mirror polished stainless steel. It is available as a single-sided or double-sided mirror polished sheet.
    Hairline finish 80 – 140 grit finish A well defined directional polish. Starting base substrate is a No. 4 finish sheet; these sheets are polished to provide a “continuous long grain” hairline look. A finish which is popular with architects for its aesthetic, it is equally popular with fabricators due to it’s ease of fabrication and finish matching properties after welding operations.

  • INNOVATIVE TECHNOLOGY of 303 STAINLESS STEEL SHEET/PLATE

    At Yieh United Corporation, we never stop improving and developing our technologies to go beyond our customer’s expectations. We strive towards these goals to produce reliable products and ensure they can be fully utilized throughout their lifetime.

    stainless-steel-innovative-technology

  • PACKING FOR 303 STAINLESS STEEL SHEET/PLATE

    Our 303 stainless steel products are packed and labeled according to the regulations and customers’ requests.

    stainless-steel-sheet-standardpackageNote: This is Yieh United Corporation’s standard seaworthy packing for 303 stainless steel sheet sheet/plate.

    stainless-steel-sheet-special-packageNote: This is Yieh United Corporation’s special packing for 303 stainless steel sheet/plate (Extra fee is needed).

  • FAQ

    1. What is the minimum order quantity (MOQ)?
    - Normally, the MOQ for our stainless steel sheet is 200 Kg. If we have any excess inventory of stainless steel sheet, there’s no MOQ requirement. You can ask us to check when you are interested in purchasing them.

    2.What is the payment method?
    
- For new customers: 30%T/T deposit 70%T/T Before shipment.
– For partners and distributors, 30%T/T deposit 70% T/T Against B/L Copy.

    3.What is the acceptable currency?
    - We accept USD, EUR and RMB.

    4.What is the delivery time?
    
- 5 days in advance.

    5.Where is the loading port?
    - Normally, our loading ports are Shanghai, Tianjin, and Shenzhen. You can choose anyone of them, or you can select the other ports.

    6.What is the delivery term?
    - FOB, CIF, CFR, EXW

    7.Do you offer free samples?
    
- Yes, based on our stock status, we will send our customer free samples. The express fee is to be paid by our customers.

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