Sunday, September 26, 2010

Re: [MW:7195] Hardness A B C Scale


Hi All,


Scale Abbreviation Load Indenter Use
A HRA 60 kgf 120° diamond cone Tungsten carbide
B HRB 100 kgf 1⁄16-inch-diameter (1.6 mm) steel sphere
Aluminium, brass, and soft steels
C HRC 150 kgf 120° diamond cone Harder steels
D HRD 100 kgf 120° diamond cone
E HRE 100 kgf 1⁄8-inch-diameter (3.2 mm) steel sphere
F HRF 60 kgf 1⁄16-inch-diameter (1.6 mm) steel sphere
G HRG 150 kgf 1⁄16-inch-diameter (1.6 mm) steel sphere

There is seven type of scales A, B, C ...... different amount of load
applied while checking hardness. Above table will guide you just go
through.


Muthu Barathi p
Sr Manager QA / QC

AFCONS

On Sun, 26 Sep 2010 08:56:24 +0530 wrote
>what is A B C scale in hardness test



--

Regards,

Pushpraj Anand

Tata Power Co Ltd

Contact No: +919234655254



--

To post to this group, send email to materials-welding@googlegroups.com

To unsubscribe from this group, send email to materials-welding-
unsubscribe@googlegroups.com

For more options, visit this group's bolg at http://materials-
welding.blogspot.com/

The views expressed/exchnaged in this group are members personel views
and meant for educational purposes only, Users must take their own
decisions w.r.t. applicable code/standard/contract documents.



Dear Sir,





Thanking You,

Honesty is the best Policy

With Warm Regards,

P Muthu Barathi
Mobile No:09967300544

--
To post to this group, send email to materials-welding@googlegroups.com
To unsubscribe from this group, send email to materials-welding-unsubscribe@googlegroups.com
For more options, visit this group's bolg at http://materials-welding.blogspot.com/
The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.

No comments:

[MW:34820] RE: 34813] Clarification in Rate of heating and cooling.

Hello,   Please see the response below.   Regards.   P. Goswami, P. Eng, IWE.   From: materials-welding@googlegroups.com <materials-weld...