SMB Medical Laboratory is accredited according to ISO/ IEC 17025 and offers a broad range of mechanical and metallurgical testing services on metals. We have over 30 years’ experience in testing titanium, nickel, cobalt and aluminium alloys as well as a wide variety of stainless steels for applications in the medical, transportation, power generation and aerospace sectors.

Services

At SMB Medical Laboratory the following physical and mechanical testing methods for metals are available. All testing services are accredited according to ISO/ IEC 17025.

Mechanical testing – static and quasi-static testing

TENSILE TEST This testing method is used to determine yield strenght, tensile strength, elongation at rupture, reduction of area and the modulus of elasticity of metallic materials at room temperature. Equipment: Walter + Bai tensile testing machine 15SZBDA52 - 150 KN + in-house sample preparation Standards: ISO 6892-1, ASTM E8/E8M
BRINELL & ROCKWELL SURFACE HARDNESS TEST These test methods are used to determine Rockwell and Brinell hardness of metallic materials. Equipment: Ernst hardness tester AT 180 DRT – 20 – 70HRC/ max. 650HBW + in-house sample preparation Standards: VDI/VDE 2616, ISO 6508-1
DYNAMIC TESTING This test method is used to determine the amount of energy absorbed by a material during impact/fracture (fracture toughness) and the ductile/ brittle properties of materials. Equipment: Walter + Bai Impact testing machine PH 130/300 – 300 J Standards: ISO 148-1, ASTM E23



Metallography (Classification of macrostructure)

Metallographic Specimen Preparation The objective of metallographic examination is to reveal the constituents and structure of metals. The preparation of samples includes work processes like sawing/cutting, mounting, grinding, polishing and if necessary etching. Equipment: cutting machines, hot mounting press + cold mounting, automatic grinder & polisher, electrolytic polisher & etcher Standards: ASTM E3, ASTM E407, ASTM E340
Macroetching of Metals Macroetching is used to reveal the heterogeneity and variations in the structure of metals such as flow lines, columnar structures, dendrites, weld structures, inclusions, segregation, porosity and cracks. Equipment: Kaiser shooting table + digital camera Canon EOS Standards: ASTM E381, ASTM A604, ETTC 3, AMS 2380
Determination of the Grain Size These test methods are used to determine the grain size of metallic and nonmetallic materials and include the comparison procedure, intercept procedure and automatic image analysis. Equipment: Light microscope Nikon Optiphot + camera ProgRes Speed XT Core 3 Standards: ISO 643, ASTM E112, ASTM E1181, ASTM E1382

CLASSIFICATION OF MICROSTRUCTURES FOR APLPHA+BETA TITANIUM ALLOYS
The comparison test methods is used for the designation of microstructures of alpha + beta titanium alloys.
Equipment: Light microscope Nikon Optiphot + camera ProgRes Speed XT Core 3
Standards: ISO 20160, ETTC 2, EN 3114
Determination of Delta Ferrite Content and Microscopic Examination of Non-Metallic Inclusions
These test methods are used to determine the percentage of delta ferrite and the non-metallic inclusions in steels and other iron alloys
Equipment: Light microscope Nikon Optiphot + camera ProgRes Speed XT Core 3
Standards: AMS 2315, DIN 50602 (withdrawn), ASTM E45
Microscopic Examination of Coating Thickness and Decarburization
This test method is used for the measurement of the coating thickness of metallic and oxide layers as well as for the determination of the depth of decarburization of unalloyed and alloyed steels.
Equipment: Light microscope Nikon Optiphot + camera ProgRes Speed XT Core 3
Standards: ISO 1463, ISO 3887



Non-destructive Testing

FLUORESCENT PENETRANT TESTING (PT)
These test method is used to detect discontinuities, e.g. cracks, laps, folds, porosity and lack of fusion, which are open to the surface of the material to be tested. It is mainly applied to metallic materials, but can also be performed on other materials, provided that they are inert to the test media and not excessively porous (castings, forgings, welds, ceramics, etc.)
Equipment: Semiautomatic penetrant line with pre- or subsequent ultrasonic cleaning
Standards: ISO 3452-1, ISO 9583, ISO 9712, EN 10228

At  SMB Medical Laboratory the following services are available which are not accredited according to ISO/IEC 17025.

MEASURING DEVICES Equipment: Portable measuring arms with probe & laser, CMM with probe & laser scanner, Contracer
MATERIAL ANALISYS Determination of the chemical composition of metallic and non- metallic materials Equipment: Spectro Test CCD
FAILURE ANALYSIS & CONSULTING

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SMB Medical strives to be your partner as a leading contract manufacturer in the orthopaedic market. With nearly 30 years’ experience in the precision forging, machining and finishing of medical implants and instruments, we focus on providing our customers with tailor-made solutions, applying our core competences in metallurgy, engineering, manufacturing, logistics and services.