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ASTM A519 Seamless Carbon Steel Pipe for Mechanical and Structural Applications

ASTM A519 seamless pipe is a cold-drawn carbon/alloy steel tube designed for mechanical, hydraulic, and automotive applications. It offers high strength, precise dimensions, and excellent machinability for pressure-containing and structural components.

    Product details

    ASTM A519 seamless pipe is manufactured from cold-drawn carbon and alloy steel, mainly used for mechanical applications, hydraulic systems, automotive components, machining parts and general engineering services. It features uniform wall thickness, high dimensional accuracy and good mechanical properties, suitable for parts requiring high strength and stability.



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    Details

    Process

    Hot Rolled / Cold Drawn / Cold Rolled / Honed

    Steel Grade

    20#, 45#, Q235B
    ASTM A106 Gr.B, API 5L Gr.B, ST37, ST52, S355
    42CrMo, 16Mn, ASTM A335 P11/P22/P91

    Stander

    GB/T 8163, GB/T 5310
    ASTM A106, ASTM A519, API 5L
    EN 10210, EN 10216

    Heat Treatment

    Normalized / Annealed / Q&T (Quenched and Tempered)

    Surface

    Black / Varnished / Galvanized


    Normal sizes

    Outside Diameter Thickness
    SCH10 SCH40 XS SCH80 SCH160 XXS
    DN15 1/2" 21.3mm 2.11mm 2.77mm 3.73mm 3.73mm 4.78mm 7.47mm
    DN20 3/4" 26.7mm 2.1lmm 2.87mm 3.91mm 3.91mm 5.56mm 7.82mm
    DN25 I" 33.4mm 2.77mm 3.38mm 4.55mm 4.55mm 6.35mm 9.09mm
    DN32 1-1/4" 42.2mm 2.77mm 3.56mm 4.85mm 4.85mm 6.35mm 9.7mm
    DN40 1-1/2" 48.3mm 2.77mm 3.68mm 5.08mm 5.08mm 7.14mm 10.15mm
    DN50 2" 60.3mm 2.77mm 3.91mm 5.54mm 5.54mm 8.74mm 11.07mm
    DN65 2-1/2" 73mm 76mm 3.05mm 5.16mm 7.01mm 7.01mm 9.53mm 14.02mm
    DN80 3" 88.9mm 3.05mm 5.49mm 7.62mm 7.62mmmm 11.13mm 15.25mm
    DN90 3-1/2" 101.6mm 3.05mm 5.74mm 8.08mm 8.08mm
    DN100 4" 114.3mm 3.05mm 6.02mm 8.56mm 8.56mm 13.49mm 17.12mm
    DN125 5" 141.3mm 3.4mm 6.55mm 9.53mm 9.53mm 15.88mm 19.05mm
    DN150 6" 168.3mm 165mm 3.4mm 7.1lmm 10.97mm 10..97mm 18.26mm 21.95mm
    DN200 8" 219.1mm 3.76mm 8.18mm 12.7mm 12.7mm 23.01mm 22.23mm
    DN250 10" 273.1mm 4.19mm 9.27mm 12.7mm 15.09mm 28.58mm 25.4mm

    Characteristics

    Material & Standards
    Standard: ASTM A519
    Material: Carbon steel & Alloy steel
    Process: Cold drawn seamless
    Section shape: Round, square, rectangular (customizable)
    Key Features
    Cold drawn process ensures tight tolerances and smooth surface
    High tensile strength and good machinability
    Excellent formability and pressure resistance
    Stable performance under mechanical stress
    Available in various sizes and material grades
    Typical Applications
    Mechanical parts and structural components
    Hydraulic cylinders and pressure systems
    Automotive transmission and chassis parts
    Machining shafts, sleeves and fasteners
    General industrial engineering equipment
    Size Range (Customizable)
    Outer diameter: According to customer requirements
    Wall thickness: According to customer requirements
    Length: Fixed length or random length as requested
    Quality Control
    Full dimensional inspection
    Chemical composition analysis
    Mechanical property testing (tensile, yield, elongation)
    Non-destructive testing available upon request

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    Packaging and Shipping

    Standard export packing. The modes of transportation include containerized sea freight, bulk sea freight, air freight, land transportation, and multi-modal transportation.

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    Q: How do you guarantee product quality?

    A: We issue factory test reports for every batch, and we support third-party inspection (like SGS, TUV) as required.

    Q: What makes your company stand out?

    A: We have a professional technical team, competitive pricing for carbon/alloy steel pipes, and reliable after-sales support.

    Q: Which regions do you mainly export to?

    A: Our products are sold to over 50 countries, including Middle East, Southeast Asia, South America, and East Asia markets.

    Q: What quality certifications do you hold?

    A: We are certified with ISO, CE, SGS, TUV, and other international standards to ensure compliance with global requirements.

    Q: Is it possible to get a sample before ordering?

    A: Free small samples are available from stock; customized samples usually take 5–7 working days to produce.

    Q: What payment methods do you accept?

    A: We accept T/T, and other terms (like L/C, Western Union) can be discussed based on order details.

    Q: How long is your typical delivery time?

    A: For stock items, we can ship within 7–15 days; for customized orders, it takes 20–35 days depending on specifications.

    Q: Can you accept OEM or custom size orders?

    A: Yes, we support OEM services and can produce pipes according to your required sizes, standards, and surface treatments.

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