Sigma Test and Research Centre : Laboratory Testing,Quality Control,Testing Services
Specific Test Performed

Test Method Specification against which tests are performed

Tensile test,


Yield Strength,

ASTM E 8 M-09

Tensile Strength

ASTM A 370 –09ae1

Elongation %, &


%Reduction of area.

IS:3600(Pt-3)-1984 RA2003

Hardness by Vickers


ASTM E 92-82(2003)e2

Hardness by Brinell


ASTM E 10-08

Hardness by Rockwell

IS:1586-2000 RA 2006

ASTM E 18-08b



ASTM E384 – 09

Izod Impact tests (Room Temp.)

IS:1598-1977 RA-2003

Charpy Impact Test (V-Notch & U-Notch) (Room Temp. & upto -50°C)

IS:1757 –1988 RA-2003

IS:1499-1977 RA 2003

IS:3600(Pt-2)-1985 RA 2003

Bend Test

IS:1599-1985 RA-2006

IS: 2329-2005/ISO 8491:1998


IS: 3600(Pt-5):1983/

IS: 3600-6:1983/

Measurement of Coating Thickness on Al-base & Iron base)

IS:1868-1996 RA-2006

IS:6012-1992 RA-2006

IS:5523-1983 RA-2006

IS:3203-1982 RA-2006

Flattening test


Cupping test

IS:10175-(Pt 1) –1993 /


Shear Strength of Metal



IS:1239(Pt-1 )-2004


IS:1239 (Pt-2)-1992 RA 2003


IS:3589-2001 RA-2006


IS:1161-1998 RA-2003






IS:1786-2008 Clause 5.2


IS:778-1984 RA-2005


IS:14846-2000 RA 2005


IS:781-1984 RA – 2005


IS:8329-2000 RA 2005


IS:1978-1982 RA 2003


IS 4246-2002 RA-2008


& IS 5116-1996 RA-2007


IS:13983-1994 RA 2004


IS:10325-2000 RA 2005


IS:10339-2000 RA 2005


IS:1239(Pt 1)-2004


IS: 1161-1998 RA-2003


IS: 1786-2008




IS:4923-1997 RA 2003


IS:3589-2001 RA 2006


IS:1825-1983 RA 2006


IS: 1536 –2001 RA 2006


IS: 1537 – 1976 RA 2005


IS:1538-1993 RA 2004


IS:3989-1984 RA 2007


IS:1729-2002 RA 2007


IS:7138-1973 RA 2003


IS:7452-1990 RA 2003


Weighing balance & measuring tape & other relevant standards.

Grain size:

A material's grain size is important as it affects its mechanical properties. In most materials, a refined grain structure gives enhanced toughness properties and alloying elements are deliberately added during the steel-making process to assist in grain refinement.
Test Method:

Effective case depth:

This test helps in determining the depth to which the micro indentation hardness of the exterior portion of a part has been increased over that of the interior of the part.
Test Method:

Non-metallic inclusion content:

Non-metallic inclusions in steel are foreign substances. They disrupt the homogeneity of structure, so their influence on the mechanical and other properties can be considerable. During deformation, which occurs from flatting, forging and "Stamping (metalworking) stamping , non-metallic inclusions can cause cracks and fatigue failure in steel.
Test Method:

Segregation of carbides:

Carbide segregation to the prior boundaries of particles used in powder metallurgy to generate an article is eliminated through the use of a nickel-base alloy powder which coordinates carbon with the amount of Mo and W which can form detrimental amounts of undesirable carbides and with Cb, Ta, Hf and Zr which are strong formers of desirable MC-type carbide.
Test Method:

Porosity content.

This test is important for materials science, research and development, catalyst evaluation, exploration and production and many other applications.
Test Method: