Pipe End Beveling
Beveling the ends of the steel pipes and buttwelding fittings to facilitate welding and connections, improving weld quality. ASME B16.25 standard specifies the acceptable bevel angles, typically ranging from 30° to 37.5°.
Pipe End Threading
Threading on the pipe ends as per NPT (ASME B1.20.1), LP (API Spec 5B for LINE PIPE), BSP, and API Threads for OCTG enables connection with other components, enhancing sealing.
Cut-to-length
Performing cut-to-length according to customer specifications to ensure the pipe length meets usage requirements.
Anti-corrosion Coatings
A corrosion-resistant coating, such as 3LPE, 3LPP, FBE, or 3M/AkzoNobel/Hempel/Jotun International Paints, is applied to the surface of the steel pipe to extend its service life and prevent corrosion.
CNC Machining
Performing precision machining through turning, milling, drilling, etc., on the steel pipe.
Cold & Hot Bending
Bending the pipe according to design drawings using cold or hot bending techniques ensures the pipeline conforms to specific shapes and angles.
Thermal Induction Expansion
Thermal induction heating technology expands the pipe diameter to achieve large-diameter seamless steel pipes for special needs.
Welding
Employing various welding techniques (such as arc welding and TIG welding) to connect steel pipes, pipe fittings, flanges. etc forming complex structures.
Surface Treatment
Including processes like sandblasting and polishing to improve surface smoothness and adhesion, enhancing corrosion resistance.
Heat Treatment
Improving the physical and mechanical properties of the steel pipe (such as hardness and toughness) through Annealing, Normalizing, Quenching, and Tempering processes.
Marking and Coding
Marking and coding the steel pipe for tracking and management purposes.
Lining Treatment
Applying anti-corrosion materials inside the steel pipe to enhance its corrosion resistance is suitable for transporting chemical media.
Stamping and Forming
Stamping equipment was utilized to form the steel pipe into specific shapes and components.
Bending Test
Bending testing is a mechanical test used to evaluate materials’ flexural strength and ductility, particularly metals and composites. This test involves applying a load to a specimen until it deforms or fractures, allowing for the assessment of its ability to withstand bending forces.
Ultrasonic Test
Ultrasonic testing technology is used to inspect for internal defects in the steel pipes, pipe fittings, flanges, forgings, etc ensuring its quality.
Chemical Analysis
Chemical analysis is a fundamental procedure used to determine the composition and properties of materials, particularly metals and alloys. This analysis is crucial for ensuring that materials meet specified standards and regulatory requirements.
Tensile Test
Tensile testing is a fundamental mechanical test used to determine the strength and ductility of materials, particularly metals. This test involves applying a uniaxial load to a specimen until it fractures, allowing for the assessment of various material properties, including Ultimate Tensile Strength (UTS), Yield Strength, Elongation, and Reduction of Area.
Hydrostatic Test
Conducting hydrostatic tests on the steel pipes to check for sealing and pressure-bearing capabilities. Formula: P = 2St/D, where P is pressure, S is pipe wall stress as a percentage of yield strength, t is wall thickness, and D is diameter.
HIC & SSC Tests
Hydrogen Induced Cracking (HIC) and Stress Corrosion Cracking (SSC) Testing are essential for evaluating the crack resistance of steel pipes in specific environments, particularly in the oil and gas industry. HIC testing is primarily conducted to detect cracks induced by hydrogen, while SSC testing assesses the brittleness of materials under stress in corrosive environments.
Impact Test
Impact testing is a critical evaluation method used to determine the toughness and ductility of materials, particularly metals, under sudden loading conditions. This test helps assess a material’s ability to absorb energy and resist fracture when subjected to impact forces. Standard impact tests include the Charpy and Izod tests, which measure the energy absorbed by a material during fracture.
Hardness Test
Hardness testing is a critical evaluation method used to determine the resistance of a material to deformation, indentation, or scratching. It is an essential property for assessing the suitability of materials for various applications, particularly in manufacturing and engineering, including HB (BHN), HRB, HRC, and HV.
Flattening Test
The flattening test is a mechanical test used to assess the ductility and integrity of materials, particularly in welded joints and pipe sections. This test involves applying a compressive load to a specimen to determine its ability to withstand deformation without cracking.
Flaring Test
The flaring test is a mechanical test used to evaluate the ductility and integrity of pipe materials, particularly in welded joints. This test assesses a material’s ability to withstand deformation when subjected to bending or expansion, simulating conditions encountered in service.
Flanging Test
Flanging test is a mechanical test as per ISO 8494, DIN 50139, ASTM A370, which the end of a tube is bent by 90°. The test determines, through plastic deformation, whether tubes are suitable for flange formation. This test assesses a material’s ability to deform under stress without cracking, ensuring the reliability of flanged connections in various applications.
