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TIANJIN GOLDENSUN I&E CO.,LTD

Black annealed square pipe black pipe

Short Description:

Black back pipe is one of the most common steel pipes.If cold-rolled steel is heated to the annealing temperature, the surface color will turn black due to high temperature contact with air, which is called black stripping. Its surface has not been brightened, so it is black. The physical properties become soft, which is convenient for further welding to make steel pipes.


  • Min.Order Quantity: 5tons
  • Supply Ability: 5000 tons per Month
  • Delivery Time: 20-40 days after received the deposit.
  • Loading Port: Xingang, China
  • Payment Terms: L/C,T/T
  • Grade: Q195
  • Packing: STANDARD PACKING
  • Product Detail

    Product Tags

    black pipe 5

    Specification

    item
    value
    Place of Origin
    China
     
    Hebei
    Brand Name
    Goldensun
    Application
    Structure Pipe
    Alloy Or Not
    Non-Alloy
    Section Shape
    Square
    Standard
    ASTM bs DIN GB JIS
    Grade
    Q195
    Surface Treatment
    Hot Rolled
    Tolerance
    ±5%
    Processing Service
    Punching, Cutting
    Oiled or Non-oiled
    Customers' Requirement
    Delivery Time
    30-40 days
    Product name
    Black annealed square pipe
    Surface
    Black Painted
    Material
    Q195/Q235
    Shape
    Square Rectangular Pipe Tube
    Usage
    Construction Structure
    MOQ
    10 Tons
    Packing
    STANDARD PACKING
    Technology
    Hot Rlloed
    Color
    Black
    Payment terms
    L/C T/T (30%DEPOSIT)

    The difference

    Black back tube: Black annealed tube, which can be bent without cracking.
    Hot rolled tube: A tube made of hot-rolled strip steel, directly formed.

    Application

    The uses of square tubes include construction, machinery manufacturing, steel construction and other projects, shipbuilding, solar power generation brackets, steel structure engineering, power engineering, power plants, agricultural and chemical machinery, glass curtain walls, automobile chassis, airports, boiler construction, highway railings, Housing construction, pressure vessels, petroleum storage tanks, bridges, power station equipment, lifting and transportation machinery and other higher-load welded structural parts, etc.


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