We use cookies to provide you with a better experience. By continuing to browse the site you are agreeing to our use of cookies in accordance with our Cookie Policy.
  • ::COVID-19 COVERAGE::
  • INDUSTRY PRESS ROOM
  • SUBMISSIONS
  • MEDIA FILE
  • Create Account
  • Sign In
  • Sign Out
  • My Account
Free Newsletters
  • MAGAZINE
    • Current Issue
    • Archives
    • Digital Edition
    • Subscribe
    • Newsletters
  • STRATEGY
  • GLOBAL
  • LOGISTICS
  • MANUFACTURING
  • PROCUREMENT
  • VIDEO
    • News & Exclusives
    • Viewer Contributed
    • Upload your video
  • PODCAST ETC
    • Podcast
    • White Papers
    • Webcasts
    • Events
    • Blogs
      • Reflections
      • SCQ Forum
    • Mobile Apps
  • MAGAZINE
    • Current Issue
    • Archives
    • Digital Edition
    • Subscribe
    • Newsletters
  • STRATEGY
  • GLOBAL
  • LOGISTICS
  • MANUFACTURING
  • PROCUREMENT
  • VIDEO
    • News & Exclusives
    • Viewer Contributed
    • Upload your video
  • PODCAST ETC
    • Podcast
    • White Papers
    • Webcasts
    • Events
    • Blogs
      • Reflections
      • SCQ Forum
    • Mobile Apps
Home » Inspection standard of seamless steel pipe
Press releases are provided by companies as is and have not been edited or checked for accuracy. Any queries should be directed to the company issuing the release.

Upload your press release

Inspection standard of seamless steel pipe

Inspection standard of seamless steel pipe
October 29, 2020
No Comments

Steel pipe geometry and shape inspection:
① Inspection of steel pipe wall thickness: micrometer, ultrasonic thickness gauge, no less than 8 points at both ends and record.
②Examination of steel pipe outer diameter and ovality: caliper, vernier caliper, ring gauge, measure the maximum and minimum points.
③ Steel pipe length inspection: steel tape measure, manual and automatic length measurement.
④ Inspection of steel pipe curvature: straightedge, level (1m), feeler gauge, thin wire to measure curvature per meter and full length curvature.
⑤ Inspection of bevel angle and blunt edge of steel pipe end face:

Square, card board. Steel pipe surface quality inspection: 100%
① Manual visual inspection: lighting conditions, standards, experience, signs, steel pipe rotation.
②Non-destructive inspection:
a. Ultrasonic flaw detection UT: It is more sensitive to the surface and internal crack defects of various materials with uniform materials.
   Standard: GB/T 5777-1996 Level: C5
b. Eddy current flaw detection ET: (electromagnetic induction) is mainly sensitive to point-shaped (hole-shaped) defects.
   Standard: GB/T 7735-2004 Level: Level B
c. Magnetic powder MT and magnetic flux leakage inspection: magnetic inspection, suitable for the detection of surface and near surface defects of ferromagnetic materials. Standard: GB/T 12606-1999 Level: C4
d. Electromagnetic ultrasonic flaw detection: No coupling medium is required, and it can be applied to high temperature, high speed, rough surface flaw detection of steel pipes.
e. Penetration inspection: fluorescence, coloring, and detection of surface defects of steel pipes.

Steel management performance inspection:
①Tensile test: measure the stress and deformation, determine the strength (YS, TS) and plasticity index (A, Z) of the material, longitudinal and transverse sample tube sections, arc, round sample (¢10, ¢12.5) small diameter , Thin-walled large-diameter, thick-walled calibration distance. Note: The elongation of the sample after breaking is related to the size of the sample GB/T 1760
②Impact test: CVN, notch C type, V type, work J value J/cm2 standard sample 10×10×55(mm) non-standard sample 5×10×55(mm) ③Hardness test: Brinell hardness HB , Rockwell hardness HRC, Vickers hardness HV, etc. ④Hydraulic test: test pressure, voltage stabilization time, p=2Sδ/D

Steel pipe process performance inspection: ① Flattening test: round specimen C-shaped specimen (S/D>0.15) H=(1+2)S/(∝+S/D)L=40~100mm deformation coefficient per unit length =0.07~0.08 ②Ring test: L=15mm, no cracks are qualified ③Flaring and crimping test: the top center taper is 30°, 40°, 60° ④Bending test: Can replace flattening test

Tips:
ASTM A500 is a carbon steel cold-formed round section and special-shaped section welded square pipe and seamless square pipe for structural use.

https://www.nan-steel.com/news/astm-a500.html
Submit your logistics, material handling, or supply chain related company news in Supply Chain Quarterly's's Industry Press Room section or New Products section
KEYWORDS Nansteel Manufacturing Co.,Ltd
  • Related Articles

    Quality Inspection Standard of Spiral Steel Pipe before Delivery

    Method for analyzing chemical composition of seamless steel pipe with carbon and sulfur analyzer

    How to distinguish the authenticity of 16mn seamless steel pipe?

You must login or register in order to post a comment.

Report Abusive Comment

Most Popular Articles

  • Logistics pros warn of business impact from Russia-Ukraine war

  • Container prices continue to drop

  • How to resolve your inventory dilemma

  • Warehouse vacancy rates sink to 27-year low

  • Empty shipping containers stack up at U.S. port depots

Featured Video

Cccb7d13 710a 4473 8132 da8b6cc286f1

The Sportsman's Guide Case study: Increasing Accuracy & Productivity

Viewer Contributed
Thanks to the Lucas Warehouse Optimization Suite, The Sportsman's Guide has increased productivity, reduced training time, and experienced a boost in accuracy for both full-time staff and seasonal employees. Want to learn how Lucas can help your DC be more efficient, accurate, and safe while reducing labor costs?...

FEATURED WHITE PAPERS

  • Omnitracs One – Last Mile Solutions

  • The enterprise shipper's guide to building a smarter truckload RFP

  • Fixed vs. Flexible Automation: Which Option is Better for 3PLs?

  • Enhancing Relationships in Logistics through Data & Collaboration

View More

Subscribe to Supply Chain Quarterly

Get Your Subscription
  • SUBSCRIBE
  • E-NEWSLETTERS
  • ADVERTISING
  • CUSTOMER CARE
  • CONTACT
  • ABOUT
  • STAFF
  • PRIVACY POLICY

Copyright ©2022. All Rights ReservedDesign, CMS, Hosting & Web Development :: ePublishing