Gb T 16270 Pdf [new] Here

In some cases, standards might be available for free or open access, but this is less common for national standards like GB/T 16270. Open access might be through national library services or certain academic databases.

High-stress structural joints and tie beams.

| Source | Method | |--------|--------| | | Official paid download via openstd.samr.gov.cn (Chinese interface) | | China Standard Bookstore | English & Chinese versions; purchase PDF | | ANSI Webstore / IHS Markit | International resellers; fee applies | | University/Institution library | Some have access to Chinese standards databases (e.g., Wanfang, CNKI) |

Significantly higher than standard structural steels, providing safety margins against catastrophic failure.

Heavy-duty miners, hydraulic roof supports, and conveyor systems. gb t 16270 pdf

: Ultrasonic testing (per GB/T 2970) may be required by contract for internal flaw detection. International Equivalents

While the official text is often in Chinese, English versions and detailed catalogs are available through specialized providers like Chinese Standard or technical document platforms like Scribd .

| Grade | Yield Strength (MPa) Min | Tensile Strength (MPa) | Elongation (%) Min | | :--- | :--- | :--- | :--- | | | 460 | 550 - 720 | 17 | | Q500 | 500 | 590 - 770 | 17 | | Q550 | 550 | 670 - 830 | 16 | | Q620 | 620 | 710 - 880 | 15 | | Q690 | 690 | 770 - 940 | 14 |

Steel is typically smelted using oxygen converter or electric furnace methods. It usually undergoes secondary metallurgy (vacuum degassing) to reduce impurities like sulfur and phosphorus, which are detrimental to weldability and toughness. In some cases, standards might be available for

: Hydraulic roof supports, heavy dump truck beds, and mineral crushers.

. It covers plates used in heavy machinery, mining equipment (e.g., excavators, loaders, bulldozers), and structural parts of cranes. Delivery Condition : Steel must be supplied in a quenched and tempered condition (often referred to as slack quenching). Steel Grades : Common grades include Q460, Q500, Q550, Q620, Q690, Q800, Q890, and Q960 Quality Designations

specifies the technical requirements for high strength structural steel plates .

The 2009 update introduced several significant changes to reflect advancements in metallurgy: Extended Thickness | Source | Method | |--------|--------| | |

Official GB standards are primarily published in Chinese. If you are operating internationally, look for authorized English translation versions of the PDF (often designated as GB/T 16270 English Translation ).

The defining characteristic of GB/T 16270 is the process.

If you are sourcing this material for a project, let me know: Which (e.g., Q690D, Q460E) you need? The required plate thickness for your design? Whether you need to find a direct Western equivalent ?

This document is for with a maximum thickness of 150 mm. It’s important to note that "quenching and tempering" is a specific heat treatment process.