OEM Manufacturer Ultrasonic Portable Hardness Tester - The Impact Device of Hardness Tester – TMTeck

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Our company puts emphasis on the management, the introduction of talented personnel, and the construction of staff building, trying hard to improve the quality and liability consciousness of staff members. Our company successfully attained IS9001 Certification and European CE Certification of Waterproof Ultrasonic Transducer, Pocket Thickness Gauge, Ultrasonic Transducer Manufacturers, We sincerely welcome domestic and foreign merchants who calls, letters asking, or to plants to negotiate, we will offer you quality products and the most enthusiastic service,We look forward to your visit and your cooperation.

OEM Manufacturer Ultrasonic Portable Hardness Tester - The Impact Device of Hardness Tester – TMTeck Detail:

The Impact Device of Hardness Tester

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Different Types of Impact Device

Material	Hardness method	Impact device
Material	Hardness method	D/DC	D+15	C	G	E	DL
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	32.2～99.5	33.3～99.3	31.8～102.1		35.8～102.6	30.6～96.8
Hammered steel	HB	143~650
Cold work tool steel	HRC	20.4～67.1	19.8～68.2	20.7～68.2		22.6～70.2
Cold work tool steel	HV	80～898	80～935	100～941		82～1009
Stainless steel	HRB	46.5～101.7
	HB	85～655
	HV	85～802
Gray cast iron	HRC
	HB	93～334			92～326
	HV
Nodular cast iron	HRC
	HB	131～387			127～364
	HV
Cast aluminum alloys	HB	19～164		23～210	32～168
Cast aluminum alloys	HRB	23.8～84.6		22.7～85.0	23.8～85.5
Brass(copper-zinc alloys)	HB	40～173
Brass(copper-zinc alloys)	HRB	13.5～95.3
Bronze (copper-aluminum/copper-tin alloys)	HB	60～290
Wrought copper alloys	HB	45～315

Non conventional impact devices		DC(D)/DL	D+15	C	G	E
Impacting energy Mass of impact body		11Mj 5.5g/7.2g	11mJ 7.8g	2.7mJ 3.0g	90mJ 20.0g	11mJ 5.5g
Test tip Hardness Diameter of test tip Material of test tip		1600HV 3mm Tungsten carbide	1600HV 3mm Tungsten carbide	1600HV 3mm Tungsten carbide	1600HV 5mm Tungsten carbide	5000HV 3mm synthetic diamond
Impact device Diameter Impact device Length Impact device Weight		20mm 86(147)/ 75mm 50g	20mm 162mm 80g	20mm 141mm 75g	30mm 254mm 250g	20mm 155mm 80g
Max. hardness of workpiece		940HV	940HV	1000HV	650HB	1200HV
Mean roughness of workpiece surface of the Ra		1.6μm	1.6μm	0.4μm	6.3μm	1.6μm
Min. weight of sample Measure directly Need support firmly Need coupling tightly		>5kg 2～5kg 0.05～2kg	>5kg 2～5kg 0.05～2kg	>1.5kg 0.5～1.5kg 0.02～0.5kg	>15kg 5～15kg 0.5～5kg	>5kg 2～5kg 0.05～2kg
Min. thickness of sample coupling tightly Min.layer thickness for surface harden		5mm ≥0.8mm	5mm ≥0.8mm	1mm ≥0.2mm	10mm ≥1.2mm	5mm ≥0.8mm
Size of tip indentation
Hardness 300HV	Indentation diameter	0.54mm	0.54mm	0.38mm	1.03mm	0.54mm
Hardness 300HV	Indentation depth	24μm	24μm	12μm	53μm	24μm
Hardness 600HV	Indentation diameter	0.54mm	0.54mm	0.32mm	0.90mm	0.54mm
Hardness 600HV	Indentation depth	17μm	17μm	8μm	41μm	17μm
Hardness 800HV	Indentation diameter	0.35mm	0.35mm	0.35mm	–	0.35mm
Hardness 800HV	Indentation depth	10μm	10μm	7μm	–	10μm
Available type of impact device		D: General test DC: Hole or hollow-cylindrical test DL: Slender narrow groove or hole test	D+15: groove or reentrant surface	C: small, light, thin parts or surface of hardend layer	G: large, thick, heavy or rough surface steel	E: super high hardness material

Type of Impact Device	Distance of center of the two indentations	Distance of center of the indentation to sample edge
Type of Impact Device	Not less than (mm)	Not less than (mm)
D、DC	3	5
DL	3	5
D+15	3	5
G	4	8
E	3	5
C	2	4

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With our leading technology also as our spirit of innovation,mutual cooperation, benefits and development, we are going to build a prosperous future jointly with your esteemed company for OEM Manufacturer Ultrasonic Portable Hardness Tester - The Impact Device of Hardness Tester – TMTeck , The product will supply to all over the world, such as: Kuwait, Lebanon, India, We believe in establishing healthy customer relationships and positive interaction for business. Close cooperation with our customers has helped us to create strong supply chains and reap benefits. Our products have gained us widespread acceptance and the satisfaction of our worldwide valued clients.

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Company director has very rich management experience and strict attitude, sales staff are warm and cheerful, technical staff are professional and responsible,so we have no worry about product,a nice manufacturer.