HT-50 Leeb hardness testerDetailed product description：

The HT-50 Leeb hardness tester, based on the Leeb hardness measurement principle, can perform high-precision testing on various metal materials. Can store up to 600 sets of hardness measurement data (impact times 32-1). The HT-50 Leeb hardness tester adopts a fully sealed metal shell, which is compact, portable, and highly reliable, suitable for harsh operating environments, and resistant to vibration, impact, and electromagnetic interference.

Detailed introduction of Leeb hardness tester

Supporting "Steel" materials, when testing "Steel" specimens with D/DC type impact devices, the HB value can be directly read without the need for manual table lookup.
Convenient switching to all hardness standards (HL, HB, HRB, HRC, HRA, HV, HS), parallel conversion of various hardness measurement values.
Adopting a large screen 128 × 64 dot matrix LCD display, the information is rich and intuitive.
Full Chinese display, menu style operation, simple and convenient operation.
There is a high brightness backlight display, which is convenient for use in dimly lit environments.
The RS232 communication interface allows for convenient and fast data exchange and parameter setting with a PC.
A host can be equipped with 7 different types of impact devices for automatic identification of impact device types. No need to recalibrate when replacing.
The power supply adopts 2 AA (No. 5) ordinary alkaline batteries, which can work continuously for no less than 100 hours and have energy-saving functions such as automatic sleep and automatic shutdown.
There is a remaining battery indicator icon on the LCD screen, reminding users to replace the battery in a timely manner.
Equipped with software calibration function for indication.
It can be equipped with powerful microcomputer software, which has rich functions such as transmitting measurement results, storing and managing measurement values, statistical analysis of measurement values, printing measurement reports, etc., to meet the higher requirements of quality assurance activities and management.
Design basis standard: Technical Conditions for Leeb Hardness Tester JB/T 9378-2001.

Technical parameters of HT-50 Leeb hardness tester:

material	Hardness system	Impact device
		D/DC	D+15	C	G	E	DL
Steel and cast steel Steel and cast steel	HRC	17.9～68.5	19.3～67.9	20.0～69.5		22.4～70.7	20.6～68.2
	HRB	59.6～99.6			47.7～99.9		37.0～99.9
	HRA	59.1～85.8				61.7～88.0
	HB	127~651	80~638	80~683	90~646	83~663	81~646
	HV	83~976	80~937	80~996		84~1042	80~950
	HS	30.1～110.1	33.3～99.3	31.8～102.1		35.8～102.6	30.6～96.8
Steel forged steel	HB	143~650
CWT、ST Alloy tool steel	HRC	20.4～67.1	19.8～68.2	20.7～68.2		22.6～70.2
	HV	80~898	80~935	100~941		82~1009
Stainless steel stainless steel	HRB	46.5～101.7
	HB	85~655
	HV	85~802
GC. IRON gray cast iron	HRC
	HB	93~334			92~326
	HV
NC、IRON ductile cast iron	HRC
	HB	131~387			127~364
	HV
C．ALUM Cast aluminum alloy	HB	19~164		23~210	32~168
	HRB	23.8～84.6		22.7～85.0	23.8～85.5
BRASS Copper-zinc alloy (Brass)	HB	40~173
	HRB	13.5～95.3
BRONZE copper-tin alloy (Bronze)	HB	60~290
COPPER pure copper	HB	45~315

serial number	material	Leeb hardness HLD	Strength σ b (MPa)
one	C low carbon steel	350~522	374~780
two	C high carbon steel	500~710	737~1670
three	Cr chromium steel	500~730	707~1829
four	CrV chromium vanadium steel	500~750	704~1980
five	CrNi chromium nickel steel	500~750	763~2007
six	CrMo chromium molybdenum steel	500~738	721~1875
seven	CrNiMo chromium nickel molybdenum steel	540~738	844~1933
eight	CrMnSi chromium manganese silicon steel	500~750	755~1993
nine	SSST ultra-high strength steel	630~800	1180~2652
ten	SST stainless steel	500~710	703~1676