Sahand Laboratory Complex

OES (METAL ANALYSIS)

This departman of the laboratory is a main pillar in the path of identifying metal materials using OES technology and relying on experienced experts, which provides the possibility of determining the chemical composition of metals and their compliance with standards.
Multiple standard samples for permanent equipment calibration
Using specialized and experienced experts to track and identify metal materials

In general, the metal materials tested in this laboratory are as follows :

Simple carbon steel and low alloy steels

Alloy steels, stainless and fireproof steels Tools steels

Hotfield steels

Gray, malleable, ductile and white cast irons

Alloy cast irons , Ni hard and Ni resist cast irons

Aluminum base alloys

Copper base alloys – analysis of brass – analysis of bronze – analysis of tin copper alloy

Zinc base alloys

Analysis of welding electrodes and fillermetals

Analysis of welding spot

Mechanical properties of materials

This department performs general tests of mechanical properties, including tension, pressure, impact, bending and hardness testing, and specific tests that are defined based on different standards.

Services that can be provided in the mechanical properties laboratory :

Tensile test and determination of yield point and ultimate strength and elongation of metal materials

Bending test according to the standard ASME SEC IX, ASTM E 291 , ASTM E 191

tensile and proof load and wedge test of bolts and nuts Based on various standards including ISO R 898

Spring constant test

Mechanical pressure test

Hydrostatic and leakage test of tanks and gas capsules

Charpy impact test based on ASTM E23

Hardness Testing

Hardness measurement is a fast method for determining the mechanical properties of parts due to the quickness of the test and the need for light preparation. Also, the hardness value can be used to determine the macrostructure and microstructure of the parts. This test method can be done without destroying the sample. Hardness measurement is used for wide categories of metals and non-metals due to the variety of scales and applied forces. Also, hardness measurement is a reference method for determining the accuracy of heat treatment applied on parts.

Brinell scale with different applied forces

Rockwell scale in different categories

Vickers and micro Vickers scale

Hardness penetration depth profile ( heat treatment and carbonized and decarbonized and nitratized penetration depth)

Metallography

metallography microstructure and analysis

metallography grain size determination

Determining the depth of the decarbonized layer(carbonized, nitratized , carbonitrided , boronized , anodized , …)

Determining the depth of the hardened layer

The percentage of metallographic phases

Determination of sphericity, number of nodules and percentage of phases in cast iron

Degree of bonding

Weld Macrography Profile ( macro etching )

Determination of the heat treatment cycle and the production process of metal parts

Coating thickness

Ferrite number and percentage

NON Destructive Test

FLAW DETECTION of industrial parts and welded structures (internal and surface defects) in the laboratory or on site

VISUALY INSPECTION OF WELDED OR OTHER PART

Ultrasonic inspection and detection of internal defects of welded or cast or forged and rolled parts, etc. Thickness measurement by ultrasonic method

Inspection of metal surface defects by magnetic particle test using two UV fluorescent and white contact methods

Inspection of metal surface defects with penetrant liquid test

Radiography and interpretation of radiographic films

Inspection of coating ( thickness & quality ) and sandblasting and paint adhesion test ( cross cut )

Determining the type of coating and its thickness, including galvanized, chromize, phosphorize, anodize, etc

Holiday test or coating and insulation pore detector

Torque meter and pre-tightening force of bolts and nuts

Inspection and testing of all stages of construction of piping and pressure vessels (fit-up and assembly, welding, etc.)

Weld Engineering

WELDING PROCEDURE SPECIFICATION - WPS
PROCEDURE QUALIFICATION REPORT – PQR
WELDER QUALIFICATION TESTING – WQT

Macro etching of the welding profile and hardness profile of the weld metal section

Face & Root & Side bending test ( destructive test on coupons ).

Weld nick break test

Non-destructive welding tests including ultrasonic and magnetic particles and penetration liquids.

Welding visual and dimentional inspection

Inspection of paint and insulation and sandblasting and paint adhesion test and Measurement of coating thickness

Torque test and pre-tightening force of bolts and nuts.

Destructive and non-destructive tests and inspection of pipelines and pressure vessels

Corrosion and Insulation

Salt Spray examinations

Hydrogen Induced Cracking (HIC) Testing

sulfide stress corrosion cracking (sscc) testing

Intergranular Corrosion of Austenitic Stainless Steel testing

Study of hydrogen embrittlement and effects of hydrogen sulfide at ambient temperature

NACE TM 0177

Laboratory Testing of Metals for Resistance to Sulfide Stress Cracking and Stress Corrosion Cracking in H2S Environments

NACE MR 0103

Metallic materials resistant to sulfide stresscracking in corrosive petroleum refining environments

NACE TM 0284

Evaluation of Pipeline and Pressure Vessel Steels for Resistance to Hydrogen-Induced Cracking

NACE MR 0175

Materials for use in H2S-containing environments in oil and gas production

ASTM A 262

Standard Practices for Detecting Susceptibility to Intergranular Attack in Austenitic Stainless Steels

Portable Testing

Steels alloys analysis ( portable OES )

Portable hardness tester on metals ( BRINELL , ROCKWELL , VICKERS )

PORTABLE MACROETCH AND METALLUGRAPHY

Torque meter and pre-tightening force of bolts and nuts

Rebar, bolt and stud nailing test

Measurement of coating and insulation thickness

Holiday test or paint and insulation pore detector

Ultrasonic flaw detection on metals and Thickness measurement

Penetrant liquid & magnetic particles testing on welds and metal parts

Determining the roughness of metal surfaces

Head Injury Criteria Testing ( Determination Of Critical Fall Height – DIN EN 1177)

Head Injury Criteria

head injury criteria testing ( Determination of critical fall height – DIN EN 1177)

Sampeling Preparation

Preparation of tensile test sample with flat and round cross section

Preparation of welding tensile test samples on the relevant coupons

Preparation of samples with high hardness

Preparation of controlled bending test sample

Charpy impact specimen preparation ( V & U notch )

Controlled flattening sample preparation for pipes and tubes

Preparation of nick break samples on welding coupons

Preparation of the macrography of the weld section

3D Scan

3D scanning of industrial and non-industrial parts and all parts that need redesign and 3D modeling, from small to large parts, is done with high accuracy and excellent quality. The output format of the 3D model is STL,STEP,… which most modeling software supports.

3D scanner and shape surface CAD

3D scanning and preparation of cloud point file and 3D SKETCH of industrial and artistic parts

Dimensional design and modeling of all kinds of parts

On-site measurement services for industries

Dimensional comparison of manufactured parts with the original model

3D Print

3D printing technology is developing day by day. 3D printing is the process of making a 3D model of an object, which can be used to see its actual size and shape.

You’ve probably heard of 3D printers. Printers that print in three dimensions instead of two dimensions. Instead of printing ink on paper, 3D printers print a layer of plastic filament.
When these slices are placed directly on top of each other, incredibly complex designs can be made. From complex industrial parts to artistic models and…

We are able to reverse engineer many parts by using 3D printing along with 3D scanning technology.

3D printing is an effective step in reducing the cost and time of making a prototype

Production of all kinds of industrial parts, architectural models, molding and casting prototypes, fantasy and artistic designs, etc. in different designs and colors.