GB/T 30026-2021
Round steel short link chains for lifting purposes—Fine tolerance hoist chains for hand operated chain hoists—Grade TH
- Standard No.
- GB/T 30026-2021
- Language
- Chinese
- Release Date
- 2021
- Published By
- 國(guó)家市場(chǎng)監(jiān)督管理總局、中國(guó)國(guó)家標(biāo)準(zhǔn)化管理委員會(huì)
- Lastest
- GB/T 30026-2021
- Replace
- GB/T 30026-2013
- Scope
- This document specifies the technical requirements for TH grade high-precision hoist chains (hereinafter referred to as hoist chains) for manual chain hoists. The chain is a round steel short link chain that has undergone welding, heat treatment and testing, and complies with the general acceptance rules stipulated in ISO1834. Note 1: The letter "T" indicates the grade, which conforms to ISO1834. Note 2: The letter "H" indicates that this type of hoist chain is only suitable for manual hoist. Note 3: ISO4063 specifies the definition of resistance welding and flash butt welding. This document applies to high-precision hoist chains with a nominal size of 3 mm to 13 mm and an ambient temperature of -10 °C to 200 °C.
GB/T 30026-2021 Referenced Document
- ISO 14556 Metallic materials — Charpy V-notch pendulum impact test — Instrumented test method*， 2023-05-01 Update
- ISO 1481 Slotted pan head tapping screws
- ISO 1834 Short link chain for lifting purposes - General conditions of acceptance
- ISO 497 Guide to the choice of series of preferred numbers and of series containing more rounded values of preferred numbers
- ISO 643
- ISO 6507-1 Metallic materials - Vickers hardness test - Part 1: Test method
- ISO 7500-1 Metallic materials - Calibration and verification of static uniaxial testing machines - Part 1: Tension/compression testing machines - Calibration and verification of the force-measuring system
GB/T 30026-2021 history
- 2021 GB/T 30026-2021 Round steel short link chains for lifting purposes—Fine tolerance hoist chains for hand operated chain hoists—Grade TH
- 2013 GB/T 30026-2013 Short link chains for lifting purposes.Grand TH, fine tolerance for manually operated chain hoists