Standard No.:	GB/T 1230-2006
English Name:	High Strength Plain Washers for Steel Structures
Chinese Name:	钢结构用高强度垫圈
Chinese Classification:	J13    Fastener
Professional Classification:	GB    National Standard
ICS Classification:	21.060.30 21.060.30    Washers, locking elements 21.060.30
Issued by:	AQSIQ; SAC
Issued on:	2006-03-27
Implemented on:	2006-11-1
Status:	superseded
Superseded by:	GB/T 1231-2024 High strength bolts with large hexagon head assemblies for steel structures
Superseded on:	2025-4-1
Abolished on:	2025-04-01
Superseding:	GB/T 1230-1991 High strength plain washers for steel structures
Language:	English
File Format:	PDF
Word Count:	1000 words
Price(USD):	60.00
Delivery:	via email in 1 business day

This national standard specifies the style and size, technical condition and tagging of the high strength plain whose dimensions are 12mm~30mm.



This national standard is applicable to the contact sets of friction-type high strength bolt hexagon nut and plain washer for steel structures which mating used with GB/T 1228-2006 High Strength Bolts with Large Hexagon Head for Steel Structures.