OMK tested pipes for complex fields United Metallurgical Company confirmed the compliance of pipes for the oil and gas industry at the highest level of CAL IV requirements according to the GOST ISO 13679-2023 standard. The tests were performed on 177.8 mm diameter casing pipes with OMK Polar threaded connection intended for work in complex projects on land and on land. The samples withstood repeated assembly and disassembly, stretching, compression, bending, changes in internal and external pressure, as well as heating up to 180°C without loss of impermeability. The tests used a clean space, dry lubricant coating developed by OMK, which combines protective and anti-seize properties and can replace standard thread sealing lubricants. read more