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  • ASTM A822 Cold-Drawn Carbon Steel Tubes
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    ASTM A822 Seamless Cold-Drawn Carbon Steel Tubes
     
     
     
    Standard Specification for Seamless Cold-Drawn Carbon Steel Tubing for Hydraulic System Service
     
     
     
    ASTM A822 Steel Tubes covers nominal wall thickness, seamless. cold-drawn carbon steel tubing intended for use in hydraulic systems and in other similar applications where forming operations require tight radius bending and flaring.
     
     
    ASTM A822 Seamless Cold-Drawn Carbon Steel Tubes sizes and thicknesses usually furnished to this specification are 1/8in to 3 1/2 in. [3.2 to 88.9 mm] in outside diameter and 0.035 to 0.134 in.[0.9 to 3.4 mm] inclusive, in nominal wall thickness
     

     
     
    ASTM A822 Seamless Cold-Drawn Carbon Steel Tubes Quick Details
    Company Name: Beite steel pipe
    Country/Region: China
    Product Name:ASTM A822 Cold-Drawn Carbon Steel Tubes
    Manufacture:cold-drawn,seamless process.
    Outside Diameter:3.2mm——88.9mm
    Wall thickness:0.9mm——3.4mm
    Length:6000mm、12000m or specified length as require
     
     
    Port of Shipment:Tianjin,China
    Payment:L/C or T/T
    Delivery: 7-15 days after payment
    Package: Bundles (hexagonal),Wooden Boxes,Crates (steel/wooden)
     
     
     
    Manufacture
    ASTM A822 Steel Tubes shall be made by the seamless process and shall be cold drawn to size.

     
     
    Heat Treatment
    ASTM A822 Steel Tubes shall be heated after the final cold working operation to a temperature of at least 1200°F [650°C|.
     

     
    Chemical Composition
     
    Element Composition. %
    Carbon 0.18 max
    Manganese 0.27 to 0.63
    Phosphorus 0.048 max
    Sulfur 0.058 max
     

     
    Mechanical Properties
     
    Tensile strength, min., ksi [MPa] 45 [310]
    Yield strength. min., ksi [MPa] 25 [170]
    Elongation, in 2 in. [or 50 mm], min., % 35
    Hardness 65 HRB
     
     
    NOTE:Mechanical property requirements do not apply lo tuhing smaller than 1/8 in. [3.2 nim] in inside diameter or 0.015 in. [0.4 mm] in thickness.
     
     
     
     
     
    Permissible Variations in Dimensions
    Permissible variations in tiie outside diameter of the tubing shall not exceed the values given in Table 3.10.2 Permissible variations in thc wall thickness of the tuhing shall not exceed ± 10 % for tubing having 0.50 in. [12.7 mm ] or larger nominal outside diameter or more than ± 15% for tubing having a smaller nominal oulsidc diameter.
     
     
    Nominal Tubing Outside Diameter,A in. (mm) Outside Diameter Tolerance,in. [mm]
    Up to 1 [25] ± 0.004 (0.10)
    1 to 1½ [25 to 38] ± 0.006 (0.15)
    Over 1½ to 2 [38 to 50], ± 0.008 (0.20)
    Over 2 to 3½ [50 to 90]. ± 0.010 (0.25)
     


    Tests
    Tension test,
    flaring test,
    flattening test. 
    Hardness test 
    Hydrostatic Proof Test
     
     
     
     
    Packaging
    Package: Bundles (hexagonal),Wooden Boxes,Crates (steel/wooden)
    ASTM A822 Cold-Drawn Carbon Steel Tubes ARE packaged or bundled in such a manner as to prevent damage in ordinary handling and iransportaiion.
     
     
     
    Ordering Information
    Orders for material include the following, as required, to describe the desired material adequately:
     
    1.1 Quantity (feet, metres, or number of lengths)
    1.2 Name of material (seamless tubing).
    1.3 Manufucture (cold-drawn),
    1.4 Tube size (outside diameter and nominal wall thickness).
    1.5 Length (specific or random).
    1.6 Test report required
    1.7 Specification designation, and
    1.8 End use of material.




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