281-363-9997 info@epimtg.com

Laboratory Testing Services

At EPI MTG, we provide a broad range of testing services, from metallurgical and mechanical testing to chemical analyses, all on state-of-the art industry-leading instrumentation. Our standards are set high and our quality of work is incontestable. Our team of highly trained scientists and technicians work effectively and continuously to provide our clients with quality results. Please feel free to call and discuss any technical or analytical projects you may have, and we will customize a solution to meet your testing needs. We also offer witnessed testing and inspection hosting at our full analytical facility, located in the Spring, North Houston area.

Metallurgical Testing

EPI MTG is dedicated to providing high quality laboratory testing and metallurgical services to our clients. We utilize and maintain state-of-the-art equipment that meets industry standards. The Lab has variable load hardness testing machines, as well as a variety of metallographic microscopes and stereoscopes to allow for in-depth microstructure analysis and qualification by our expert engineers and technicians. EPI MTG offers witnessed and third-party inspection testing capabilities, as well as rush/expedited services for your immediate testing needs. EPI MTG also supports field replica testing for metallurgical microstructure evaluation on large or over-sized equipment that must be evaluated in-situ. We also perform standard and custom metallurgical testing and qualification, including ASME Section VIII, ASME Section IX, NACE MR0103, NACE MR0175, ISO-15156, and other client-specific testing qualification criteria. Reference Specifications include ASTM E3, ASTM E1920, ASTM E407, ASTM E340, ASTM E883, ASTM E112, ASTM E45, ASTM E1077, ASTM E1268, ASTM A247, ASTM E562, ASTM B487 ASTM E2109, and ASTM E562. Feel free to speak with one of our experts and request a detailed work estimate for your upcoming metallurgical testing needs.

Hardness Testing

EPI MTG can provide variable load hardness testing as low as 10gram Vickers and Knoop (micro-hardness testing), in addition to Rockwell B/C and related scales (macro-hardness testing), and large part/in-situ Pin Brinell hardness testing (macro-hardness). We can also perform Durometer (Shore A & D) hardness testing for various polymers. EPI MTG can provide our hardness testing capabilities in the field or onsite for our clients. We can custom design a hardness testing survey on a variety of sample surfaces, and with multiple techniques to comply with any industry or client required qualification/specification program. Reference Specifications include ASTM E18, ASTM E92, ASTM E384, ASTM B578, and ASTM D2240.


EPI MTG offers state-of-the-art technology to our clients to aide in all microscopic examinations. We have both Metallographs and Stereoscopes that will capture microscopic images that are needed for your materials analysis. EPI MTG employs a Hitachi SU3500 Premium Variable Pressure SEM (Scanning Electron Microscopy) to examine numerous types of samples with clarity and high magnification. The SU3500 features innovative electron optics and signal detection systems with new proprietary Hex Bias electron gun circuitry, affording unparalleled imaging and analytical performance, as well as 3D image rendering, for unsurpassed image clarity even in a low voltage/low vacuum environment. EPI MTG offers high-resolution imaging and elemental EDS analyses that are utilized in our witnessed testing and multi-party inspections. EPI MTG offers multiple view windows and large screen display for imaging and analysis on the SEM in a group setting that allows everyone to be part of the action.

Analytical Chemistry

EPI MTG offers a suite of analytical chemical analyses, including Optical Emission Spectroscopy on the gold-standard of the industry Thermo/ARL 3460 for quantitative elemental analysis of Iron (Fe), Copper (Cu), and Nickel (Ni) based metallic materials. Powder X-ray Diffractometry (XRD) is also offered for clients of EPI MTG on the world’s most recognized diffractometer, the Rigaku MiniFlex, for detailed identification of crystallographic phases and determination for quantitative whole pattern fitting. Fourier Transform Infrared Spectroscopy (FTIR) is another powerful technique offered at EPI MTG that allows for phase and compound identification of hydrocarbon based materials, aided by the intelligent ATR crystal optics on the Thermo Nicloet iS5 for ultimate resolution of overlapping signals. Elemental analysis by Energy Dispersive X-ray Spectroscopy is yet another technique that EPI MTG can offer, aided by the Hitachi SU3500 SEM (Scanning Electron Microscope)and the highly sensitive and accurate EDAX Octane Pro detector. EPI MTG can also offer a variety of other chemical analysis services, that can be quoted upon request. Reference Specifications include ASTM E415, ASTM E1086, ASTM E1999, ASTM E2209, ASTM E2047, ASTM E1508, ASTM E168, and ASTM E1252.

Tribology Testing (UMT)

EPI MTG has the capability to perform many tribology tests aided by the UMT (Universal Mechanical Tester), including both dry and lubricated testing types, and even at elevated temperatures. We can perform block-on-ring (BOR), rotating tests (Pin-On-Disk, Pin-On-Side-On-Disk, Ball-On-Disk), reciprocating rotating tests, linear reciprocating tests (Pin, Pin-On-Side, Ball), taber testing, scratch testing, and many other varied types. We can also test a variety of dry and lubricated sample materials, such as metal, organic coatings, polymers, inorganic coatings, metallic coatings, or any other type sample that can be machined to fit testing fixtures for Coefficient of Friction testing, wear, erosion, abrasion, galling, or other surface interaction testing. EPI MTG boasts a special focus and attention to tribology and wear testing in the huge growth sector of industrial purpose applied coatings and overlays. EPI MTG maintains membership in the ASTM G02 committee, and has perfected years of innovation and experience in tribology testing on a variety of coupon specimen types. Standard testing like ASTM G65, G105, B611,  G98, G99, G133, G195, G171, and C1624 are all routine services for coupons up to 250grams, both wet and dry conditions.

Mechanical Testing

EPI MTG offers a variety of industry standard and required mechanical testing options to suit testing specifications and qualification guidelines. EPI MTG’s in-house sectioning ability allows for a fluid transition from initial sample analysis to final mechanical and metallurgical testing in one easy flow particularly for Fitness For Service (FFS) testing, ASME Section VIII Pressure Vessel testing, and ASME  Section IX Weld Qualification testing. Reference Specifications include ASTM E8, ASTM A370, ASTM C633, ASTM B571, ASTM E190, ASTM E290, ASTM G98, ASTM B311, API 5CT, API 5L, and API 6A.

Advanced Sample Sectioning & Metallurgical Preparation

EPI MTG has a full metallurgical specimen cutting, mounting, and polishing preparation lab to assist in creating the perfect testing sample for every need. With multiple wet and dry cutting, grinding and polishing methods available, EPI MTG can ensure that from small to oversized specimens, the preparation for testing can be done with high precision and accuracy. Our Sodick A325 Wire EDM and both horizontal and vertical bandsaws allows us to provide precision cross-sectioning. Multiple variable pressure- automated polisher/grinder units enable repeatable metallurgical finish on every specimen with great time efficiency. We are proficient in preparing a wide variety of materials for metallurgical polishing and cross-section analysis, from 1.25″ diameter samples to specialty samples up to 8″ across. We at EPI MTG have polished many metallic materials for our clients, including; HVOF and Thermal Spray Coatings, Cast Iron, Steel, Nickel, Super Alloys, Nickel Coatings, Nitride Coatings, Copper and Copper Alloys, Aluminum, Titanium, Carbides (many types/forms), Chrome and Chrome Coatings, and Tungsten. EPI MTG has also polished many non-metallic materials, including; Plastics, Polymers, Carbon Fiber, and even Nylon Rope. Our facility is also capable of performing cross-sectional grinding and lapping on diamond (PCD/PDC) inserts designed for downhole bits. Reference Specifications include ASTM E3 and ASTM E1920.

Custom Corrosion Testing

EPI MTG provides support for industry and litigation clients with a wide variety of corrosion testing methods.  We perform standardized (ASTM, NACE, ISO) as well as custom testing to look at a wide variety of material properties and environment compatibility.  We perform testing to qualify materials for sour service in the Oil and Gas industry such as Hydrogen Induced Cracking (HIC, NACE TM0284) and Sulfide Stress Cracking (SSC, NACE TM0177).  We perform testing to determine materials’ susceptibility to attack (ASTM B117 Salt Fog, ASTM G31, ASTM G48, ASTM A262, and ASTM A923).  We also perform proprietary client-developed corrosion testing techniques on a regular basis. With our combined experience in performing corrosion testing and chemical analysis, we are uniquely equipped to perform corrosion analysis for our clients.  We routinely examine many types of corrosion damage including:  Pitting, generalized corrosion, erosion corrosion, galvanic corrosion, MIC – microbially induced corrosion, aqueous sulfide (H2S) corrosion, corrosion fatigue, Hydrogen Induced Cracking (HIC), Sulfide Stress Cracking (SSC), Stress Corrosion Cracking (SCC),  and Crevice Corrosion.

Non-Destructive Testing (NDT)

EPI MTG can also perform Non-Destructive Testing (NDT) on samples either as individual tests or to support opur material qualification and/or destructive testing protocols. Our facility offers Visual Examination, Liquid Dye Penetrant (LDP) testing, both Wet and Dry Magnetic Particle Inspection (MPI), and Ultrasonic Testing (UT) services, as well as Surface Finish/Roughness testing. EPI MTG also performs Magnetic Permeablility (MP) testing via the Severn Gauge technique for testing alterations to non-magnetic stainless welds. Reference Specifications include ASTM E2109, ASTM E433, ASTM E165, ASTM E1219, ASTM E1417, ASTM E1220, ASTM E1418, ASTM E024, ASTM E125, ASTM E709, ASTM E1444, ASTM A275, ASTM E2297, ASTM A802, ASTM A342, and ASME Section IX.

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