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Product video
Certifications ISO 9001 · CE

ASTM A36 Q235 Mild Carbon Steel Square Pipe 250x250mm ERW Welded Black Hollow Section

Available for enquiry 0.0 · 0 reviews
USD

$ 720.00 720.0 USD $ 720.00

Not Available For Sale

Minimum order quantity: 10 Units

Key attributes

View all
Application
Other, Fluid Pipe, Boiler Pipe, Gas Pipe, Chemical Fertilizer Pipe, Structure Pipe
Grade
carbon steel
Standard
ASTM
Section Shape
Square
Length
12 m(39.37ft), 6 m(19.69ft), 6.4 m(21ft)
Certificate
CE
Product description

Highlights at a glance

  • Wide Size Range Customization Available Full sizes of square hollow section SHS from 20 20mm up to 600 600mm, wall thickness 15mm 25mm. Custom length, size, thickness and non-standard pipes are accepted according to your drawings and requirements.
  • High Strength Sturdy Structure Made of high quality Q235 Q355 A36 A500 carbon steel, our square steel pipe offers excellent yield strength, tensile strength and durability, ideal for structural construction, steel buildings, support frames and heavy duty engineering projects.
  • Smooth Welding Good Form ability Produced by ERW cold formed hot rolled technology, with uniform wall thickness, stable performance, easy to cut, drill, weld and process, widely used in fence posts, greenhouse frames, machinery parts, scaffolding and fabrication.
    • Certifications & compliance
    CE
    Complies with EU standards
    Frequently asked questions

    Our square hollow sections (SHS RHS) are made of premium Q195 Q235 Q355 mild carbon steel, also available per ASTM A500 Grade B/C, EN10210, BS1387 standard grades to meet different regional project requirements.

    We provide regular and custom sizes: Square pipe: 20 20mm 600*600mm Rectangular pipe: 20*30mm 400*600mm Wall thickness: 0.8mm 20mm Length: Fixed 6m/9m/12m or cut to length as requested.

    Trial order MOQ is 20ft container or 5 10 tons (depends on exact size). Full container orders enjoy better bulk price. Mixed container with other steel products is also acceptable.

    Yes. We supply black steel pipe, pre galvanized (pre galv) and hot dip galvanized (HDG) square/rectangular pipe with customized zinc coating thickness for anti-corrosion demands.

    Absolutely. We provide value added services including cut to length, punching, drilling, miter cutting, bending, welding and surface painting/oiling according to your drawings and technical requirements.

    Standard black pipe adopts hot rolled black oiled surface to prevent rust during transportation. We also support anti rust varnish, epoxy coating or powder coating as custom surface treatment.

    Standard size orders: 7 working days after deposit receipt. Custom size/processing orders: 15 working days, depending on order quantity and processing complexity.

    Standard export packaging: steel strips bundling, woven cloth wrapping, wooden pallet or containerized loose loading with fumigation free pallets available to meet import customs requirements.
    Description images
    Product detail
    Product detail
    Product detail
    Product detail
    CE
    Packaging and fulfilment
    • Step 1

      Payment and order readiness

      Minimum order: 10 Units

      Payment terms, specifications, and order details are confirmed before preparation begins.

    • Step 2

      Preparation

      5 days

    • Step 3

      Packaging and dispatch

      Packaging details are available on request.

      Final packing, freight, and delivery dates are confirmed before dispatch.

    Technical specifications
    Other details 28 fields
    Application
    Other, Fluid Pipe, Boiler Pipe, Gas Pipe, Chemical Fertilizer Pipe, Structure Pipe
    Grade
    carbon steel
    Standard
    ASTM
    Section Shape
    Square
    Length
    12 m(39.37ft), 6 m(19.69ft), 6.4 m(21ft)
    Certificate
    CE
    Surface Treatment
    Hot Rolled
    Tolerance
    ±1%, standard
    Alloy Or Not
    Non-Alloy
    Oiled or Non-oiled
    Non-oiled
    Processing Service
    Cutting, Bending, Welding
    Invoicing
    By Actual Weight
    Delivery Time
    5-7
    Place of origin
    China, Shandong
    Model number (Specification)
    20-200mm
    Thickness (Specification)
    0.5-5mm(0.02-0.20in)
    Shape
    Sqaure Steel Bar
    Type
    Hot Rolled Cold Rolled
    Keyword
    Square Solid Steel Bar
    Material
    Q235/Q345/SS400/ST37-2/ST52/Q420/Q460/S235JR/S275JR/S355JR
    MOQ
    1 Ton
    Technology
    Hot Rolled Cold Draw Forge
    Certification
    ISO 9001
    TRADE TERM
    FOB CIF CFR CNF EXWORK
    Selling Units
    Single item
    Single volume
    0 cm3
    Single gross weight
    0.0 kg
    Certifications & Compliance
    CE
    Lead time
    5 days
    Minimum order
    10 Units

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