Testing Services Include:
/ PQR / WPQ:
Welding Procedure Specification is a written qualified welding
procedure prepared to provide direction for making production welds to
code requirements and may be used to provide direction to the welder or
welding operator to assure compliance with code requirements.
Procedure Qualification Record is a record of variables recorded during
the welding of the test coupons and also contains the test results of
the tested specimens.
Welder Performance Qualification. The performance qualification tests
are intended to determine the ability of welders and welding operators
to make sound welds.
Materials Testing, LLC has the capability to test welders at our
facility in Lafayette, LA. We have six test booths. Our test booths are
equipped to test SMAW, GTAW, GMAW, and FCAW processes.
ultimate tensile, yield, elongation, reduction of area, load versus
strain, stress versus strain, etc.
Machine: 160,000 lbs
Olsen Machine: 120,000 lbs
Machine: 60,000 lbs
Olsen Machine: 10,000 lbs
tensile testing machines are equipped with a digital data acquisition
system which can produce digital graphs and raw data.
Impact Testing (Notch Toughness):
Measurables: absorbed energy, percent shear fracture, lateral expansion
specimen temperature: -100°F (-73°C)
Absorbed energy: 264 ft-lbs
The guided bend tests on welds are used to determine the degree of
soundness and ductility of groove-welded joints. The tension (convex)
side of the specimen is visually inspected for open discontinuities in
the weld and heat-affected zone.
This test is performed to reveal internal imperfections such as slag
inclusion, lack of fusion, incomplete penetration, porosity, etc in a
Vickers 10g to 50kg
“A”, “B”, and “C” scales
Portable Rockwell “B” and “C” Hardness Testing Performed at Customer’s
Rockwell hardness values are expressed as a combination of a hardness
number and a scale symbol representing the indenter and the minor and
major loads. The hardness number is expressed by the symbol HR and the
Rockwell testing, the Vickers test applies only a single test force.
The resultant impression or un-recovered area is then measured using a
high powered microscope in combination with a filar measuring eyepiece.
The Vickers diamond produces a square based pyramidal shape with a
depth of indentation of about 1/7th of the diagonal length. The Vickers
test has two distinct force ranges, micro (10 -1000 g) and macro (1
-100 kg), to cover all testing requirements. The indenter is the same
for both ranges, therefore Vickers hardness values are continuous over
the total range of hardness for metals.
laboratory includes state-of-the-art imaging equipment and experienced
technicians capable of producing textbook-quality photomicrographs.
Our SpectroMaxx unit is a reliable and precise laboratory spectrometer
for the qualitative and
element analysis of metallic samples. The instrument is designed for
stationary use as a bench top unit. The instrument is based on Optical
Emission Spectroscopy (OES), the analyzing method favored by most metal
producing and processing companies.
SpectroTest unit is a portable Optical Emission Spectroscopy (OES) unit
designed for field chemical analysis.
Material Testing, LLC has the in-house capability to perform chemical
analysis on most iron or nickel based alloys. Typical applications
include: material verification, material identification, welding
consumable testing, and more. A relatively small (roughly the size of a
penny) sample is required for measurement.
CTOD (Crack Tip Opening Displacement) machining and experience per API
1104 / BS7448
Machine Shop – Specimen Preparation:
SRC Materials Testing, LLC has a full in-house machine shop which
provides quick, accurate and traceable sample preparation.
Vertical Milling Machines
Horizontal Milling Machine
Stress Relief Ovens And Chart Recorders For Weld Samples