Manual Rockwell Hardness Testing Instruments Hra Hrb HRC

Min.Order: 1

Product origin: Taizhou, Zhejiang, China

Infringement complaint:

Complaint

US$ 200 ~ 2000

Description

Manual Rockwell Hardness Testing Instruments HRA HRB HRC

Features:

1. The dial will display hardness value directly, indicator responses sensitively, show the hardness value accurately, the test value is more accurate than national standard;

2. One-time casted molding shell, stable structure and it is not easy to be out of shape. It can work under harsh environment; the shell coating adopted car paint technology with white color. it has strong scratch resistance capability and still look bright as new after use many years;

Working principle of Rockwell hardness test:
The Rockwell scale is a hardness scale based on indentation hardness of a material. The Rockwell test determines the hardness by measuring the depth of penetration of an indenter under a large load compared to the penetration made by a preload. There are different scales, denoted by a single letter, that use different loads or indenters. The result is a dimensionless number noted as HRA, where A is the scale letter.

Main application:
Hardened steel, quenched and tempered steel, annealing steel, bearing steel, strip steel, hardened steel sheet, hard alloy, etc.;

Technical parameters:

Model	R-150M
Rockwell scale	HRA,HRB,HRC,HRD,HRE,HRF,HRG,HRH, HRK,HRL,HRM,HRR
Conversion scale	Check Conversion table
Preliminary test force	10Kg(98N)
Total test force	60Kg (588N), 100Kg (980N), 150Kg (1471N) Tolerance range:±1.0%
Resolution	0.5HR
Hardness value range	HRA:20~88 HRB:20~100 HRC:20~70
Hardness data read	Dial
Loading method	Manual
Dwell time	Manual
Test space	Maximum height :170mm Maximum throat depth:135mm
Size / weight	Instrument size: 466238630mm(L×W×H)/Net Weight: 65kg
Executive standard	GB/T230.2 , BSEN 6508, ASTM E18 , ISO 6508 , JJG112

Standard Accessory:

Standard accessories

Rockwell hardness tester host: 1 set
Diamond Rockwell indenter:1 pc
1.588mm diameter hard alloy steel ball indenter :1 pc,
Standard hardness block: 3 pcs
Large testing table: 1 pc
Medium testing table: 1 pc
V-shaped testing table: 1 pc,
1.588 mm diameter steel ball :5 pcs
Dust-proof cover: 1 pc, Accessory case :1 pc
Operating instruction :1pc Quality certificate :1 pc
Hardness conversion table:1pc Warranty card :1 pc.

Optional accessories

Block, Indenter

Hardness scale, force, Indenter relation:

Scale	Indenter	Preliminary test force (N)	Total test force (N)	Applications
A	Diamond indenter coning angle 120°0.2mm radius of top sphere	98	588	Horniness alloy, cementite steel
D			980	Thin steel, quenched case
C			1471	Quenched steel, thermal refined steel, cast steel
F	Diameter of steel ball 1.588mm (1/16 inch)		588	Anneal copper alloy, thin soft steel
B			980	Soft steel, aluminum alloy, copper alloy, casting
G			1471	Pearliest iron, copper, nickel, zinc, nickel alloy
H	Diameter of steel ball 3.175mm (1/8 inch)		588
E			980
K			1471