Standard No.:	GB/T 18449.1-2009
English Name:	Metallic materials—Knoop hardness test—Part 1:Test method
Chinese Name:	金属材料 努氏硬度试验 第1部分：试验方法
Chinese Classification:	H22    Metal mechanical property test method
Professional Classification:	GB    National Standard
ICS Classification:	77.040.10 77.040.10    Mechanical testing of metals 77.040.10
Issued by:	AQSIQ;SAC
Issued on:	2009-6-25
Implemented on:	2010-4-1
Status:	superseded
Superseded by:	GB/T 18449.1-2024
Superseded on:	2024-12-1
Superseding:	GB/T 18449.1-2001 Metallic knoop hardness test--Part 1:Test method
Language:	English
File Format:	PDF
Word Count:	7000 words
Price(USD):	210.00
Delivery:	via email in 1~3 business day

GB/T18449的本部分规定了金属材料努氏硬度试验的原理、符号及说明、硬度计、试样、试验方法、结果的不确定度及试验报告。
本部分规定的试验力值范围为0.09807N 到19.614N。
本方法只适用于压痕对角线长度≥0.02mm。