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Square Rectangular Seamless Steel Pipe Material Grade ASTM A 500 Grade A Of Size 40x40x3mm

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    Buy cheap Square Rectangular Seamless Steel Pipe Material Grade ASTM A 500 Grade A Of Size 40x40x3mm from wholesalers
     
    Buy cheap Square Rectangular Seamless Steel Pipe Material Grade ASTM A 500 Grade A Of Size 40x40x3mm from wholesalers
    • Buy cheap Square Rectangular Seamless Steel Pipe Material Grade ASTM A 500 Grade A Of Size 40x40x3mm from wholesalers
    • Buy cheap Square Rectangular Seamless Steel Pipe Material Grade ASTM A 500 Grade A Of Size 40x40x3mm from wholesalers
    • Buy cheap Square Rectangular Seamless Steel Pipe Material Grade ASTM A 500 Grade A Of Size 40x40x3mm from wholesalers
    • Buy cheap Square Rectangular Seamless Steel Pipe Material Grade ASTM A 500 Grade A Of Size 40x40x3mm from wholesalers
    • Buy cheap Square Rectangular Seamless Steel Pipe Material Grade ASTM A 500 Grade A Of Size 40x40x3mm from wholesalers

    Square Rectangular Seamless Steel Pipe Material Grade ASTM A 500 Grade A Of Size 40x40x3mm

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    Brand Name : Mittel
    Model Number : ASTM A 500
    Certification : SGS ISO
    Price : 750 USD/Ton
    Payment Terms : L/C, T/T
    Supply Ability : 500 Tons
    Delivery Time : 7 Days
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    Square Rectangular Seamless Steel Pipe Material Grade ASTM A 500 Grade A Of Size 40x40x3mm

    A500 Carbon Steel Structural Tubing

    Mittel offers A500 structural steel tubing in a range of sizes and shapes. The ASTM A500 specification covers cold-formed welded and seamless carbon steel tubing in round, square, rectangular, and “special” shapes for welded, riveted, or bolted construction applications, as well as for general structural purposes.

    The aspects of the ASTM A500 specification that are most important for our purposes include:

    Manufacture

    ASTM A500 spec states that welded tubing shall be made from flat-rolled steel using electric-resistance welding. Longitudinal butt joints of welded tubing shall be welded across its thickness in such a manner as to assure the structural design strength of the tubing section. Welded structural steel tubing is normally furnished without the removal of inside flash.

    Chemical Requirements

    Composition, %
    ElementGrades A, B and DGrace C
    Heat
    Analysis
    Product
    Analysis
    Heat
    Analysis
    Product
    Analysis
    Carbon, max0.260.300.230.27
    Manganese, max......1.351.40
    Phosphorus, max0.0350.0450.0350.045
    Sulfur, max0.0350.0450.0350.045
    Copper, when copper steel
    is specified, min
    0.200.180.200.18

    Tensile Requirements

    Round Structural Tubing
    Grade AGrade BGrade CGrade D
    Tensile strength, mn, ps (MPa)45 000
    (310)
    58 000
    (400)
    62 00
    (427)
    58 000
    (400)
    Yield strength, mn, psi (MPa)33 000
    (228)
    42 000
    (290)
    46 000
    (317)
    36 000
    (250)
    Elongation in 2 in. (50.8 mm), min, %A25B23C21D23C
    Shaped Structural Tubing
    Grade AGrade BGrade CGrade D
    Tensile strength, mn, ps (MPa)45 000
    (310)
    58 000
    (400)
    62 00
    (427)
    58 000
    (400)
    Yield strength, mn, psi (MPa)39 000
    (269)
    46 000
    (317)
    50 000
    (345)
    36 000
    (250)
    Elongation in 2 in. (50.8 mm), min, %A25B23C21D23C

    Permissible Dimensional Variations

    OUTSIDE DIMENSIONS

    Outside diameter measurements must be made at positions at least 2” (50.8mm) from either end of the tubing.

    For round structural tubing with nominal OD of 1.900” (48.26mm) and smaller, the outside diameter may not vary more than ±0.5%, rounded to the nearest 0.005” (0.13mm), of the specified size. For nominal ODs of 2” (50.8mm) and larger, outside diameter may not vary more than ±0.75%, rounded to the nearest 0.005”.

    Square structural tubing and rectangular structural tubing must be measured across the flats and include an allowance for convexity or concavity. Specified dimensions shall not exceed the plus/minus allowances shown in the table below.

    Outside Dimension Tolerances For Square and Rectangular Structural Tubing

    Outside Large Flat Dimension, in. (mm)Large Flat Dimension Tolerance, A plus and minus, in. (mm)
    2½ (63.5) or under0.020 (0.51)
    Over 2½ to 3½ (63.5 to 88.9), incl0.025 (0.64)
    Over 3½ to 5½, inc0.030 (0.76)
    Over 5½ (139.7)0.01 times large flat dimension

    WALL THICKNESS

    Minimum wall thickness at any point of measurement shall not be less than 90% of specified nominal wall thickness. Maximum wall thickness, excluding weld seams, shall not be more than 110% of specified nominal wall thickness. Wall thickness of square structural tubing and rectangular structural tubing must be measured at the center of the flat.

    STRAIGHTNESS

    Permissible variation in straightness for structural tubing is 1/8” times the total length in feet (or 10.4mm times the number of meters) divided by five.

    SIDE SQUARENESS

    For square structural tubing and rectangular structural tubing, adjacent sides may deviate from 90° by no more than ±2°.

    CORNER RADII

    For square structural tubing and rectangular structural tubing, the radius of any one outside corner may not exceed three times (3x) the specified wall thickness.

    TWIST

    For square structural tubing and rectangular structural tubing, the tolerances for twist (variation with respect to axial alignment) are shown in the table below.

    Twist Tolerances for Square and Rectangular Structural Tubing

    Specified Dimension of Longest Side, in. (mm)Maximum Twist in the First 3 ft (1 m) and in each additional 3 ft
    in.mm
    1½ (38.1) and under0.0501.39
    Over 1½ to 2½ (38.1 to 63.5),incl0.0621.72
    Over 2½ to 4 (63.5 to 101.6), incl0.0752.09
    Over 4 to 6 (101.6 to 152.4), incl0.0872.42
    Over 6 to 8 (152.4 to 203.2), incl0.1002.78
    Over 8 (203)0.1123.11

    Twist is measured in one of two ways: 1) By holding down one end of a square/rectangular tube on a flat surface, with the bottom side of the tube parallel to the surface plate of the two corners at the opposite end of the bottom side of the tube; or, 2) By measuring this difference on the heavier sections by a suitable measuring device. Difference in the height of the corners must not exceed the values in the table above.

    Square Rectangular Seamless Steel Pipe Material Grade ASTM A 500 Grade A Of Size 40x40x3mmSquare Rectangular Seamless Steel Pipe Material Grade ASTM A 500 Grade A Of Size 40x40x3mm

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