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STRUCTURAL PIPE STRUCTURAL SEAMLESS PIPE SEAMLESS STRUCTURAL PIPE

Short Description:

Keywords(pipe type):Structural Pipe, Structural Seamless Pipe, Seamless Structural Pipe

Size:OD: 1/8” ~ 26” (10.3 ~ 660mm),WT: SCH 10 ~ 160, SCH STD, SCH XS, SCH XXS LENGTH: Fixed Length (5.8/6/11.8/12mtr), SRL, DRL

Standard&Grade:ASTM A53/A252/A500/A501, JIS G3444, EN 10210/10219

Ends:Square Ends/Plain Ends (straight cut, saw cut, torch cut), Beveled/Threaded Ends

Delivery:Within 30 days and Depends on your order quantity.

Payment:TT, LC , OA , D/P

Packing:Bundled/In Bulk, Plastic Caps Plugged, Waterproof Paper Wrapped

Usage:1. Liquid transportation: water supply and drainage;

             2.Gas transportation: gas, steam, liquefied petroleum gas;

             3. Construction: piling pipes, bridges engineering, roads, building structures etc


Product Detail

Product Tags

Description

The structure steel pipe has hot - rolled seamless steel tube and welded steel tube.The seamless steel tube for structure is divided into two types according to the provisions of "seamless steel tube for structure" (GB/ t8162-2008) : hot rolling (extrusion, expansion) and cold drawing (rolling).The outer diameter of hot-rolled steel pipe is 32-630mm and the wall thickness is 2.5-75mm. The outer diameter of cold-drawn steel pipe is 5-200mm and the wall thickness is 2.5-12mm. Welded steel pipe is made of steel plate or steel strip after crimping and forming, which can be divided into straight welded steel pipe and spiral welded steel pipe.The outer diameter and wall thickness of the direct-welded steel pipe are 5-508mm and 0.5-12.7mm respectively, which shall comply with the provisions of GB/ t3793-2008.The welded steel pipe for low-pressure fluid transportation is also called common welded pipe, commonly known as clark pipe. The specification is expressed in mm of nominal diameter, which should comply with the provisions of GB/ t3091-2008 for low-pressure fluid transportation.

Manufacturing Process

photobank (1)

Specification

CARBON Specification

Chemical Composition

Grade C Mn P S Si Cr Mo
1010 0.08-0.13 0.30-0.60 ≤0.04 ≤0.05 - - -
1020 0.08-0.23 0.30-0.60 ≤0.04 ≤0.05 - - -
1045 0.43-0.50 0.60-0.90 ≤0.04 ≤0.05 - - -
4130 0.28-0.33 0.40-0.60 ≤0.04 ≤0.05 0.15-0.35 0.80-1.10 0.15-0.25
4140 0.38-0.43 0.75-1.00 ≤0.04 ≤0.05 0.15-0.35 0.80-1.10 0.15-0.25

Mechanical Properties

Grade Condition Tensile strength Mpa(min) Yield stength Mpa(min) Elongation %(min)
1020 CW 414 483 5
  SR 345 448 10
  A 193 331 30
  N 234 379 22
1025 CW 448 517 5
  SR 379 483 8
  A 207 365 25
  N 248 379 22
4130 SR 586 724 10
  A 379 517 30
  N 414 621 20
4140 SR 689 855 10
  A 414 552 25
  N 621 855 20

Standard

图片1
Structural Seamless Pipe Standard2
Structural Seamless Pipe Standard3

Painting&Coating

Annealed, Normalized, Stress relieved, Cold finished,  Quenched and Tempered

Packing&Loading

Bundled package

On bundle of steel tube shall be the same in batch number.steel grade and specification.the rest of tubing less than one bundle should be tied into small bundles

The weight of each bundle should be less than 50kg.The max weight cannot exceed 80kg of the bundle If there are special requirements.

When the length of the steel tube is greater than or equal to 6m.with at least 8 strapping bands for each bundle, divided into 3 groups and 3-2-3

When the length of the steel tube is less than 6mand each bundle is tied at least 5 knots and divided into 3 groups which are 2-1-2

When the length of the tube is greater than or equal to 3m, and each bundle is tied with at least 3 bands.divided into 3 groups, 1-1-1 showed below.

Structural Seamless Pipe Packing&Loading1

Wooden box package

The wooden box is suitable for cold rolling or cold drawing seamless steel tube, polished hot rolled stainless steel tube. When the outer diameter of steel pipe is greater than or equal 10mm, the maximum weight of the container should be 50kg. When the outer diameter of steel pipe is less than or equal 10mm,the maximum weight of the container should be 30kg.

Structural Seamless Pipe Packing&Loading2
Structural Seamless Pipe Packing&Loading3

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