Refining​‍​‌‍​‍‌ and power plants that are newly built need piping systems made of materials that are capable of withstanding pressure, temperature, and corrosion for a long time. Steel Pipe Suppliers in Saudi Arabia who support projects in Saudi Arabia thus as part of regional sourcing strategies generally supply carbon steel pipes to the local market such as ASTM A106 Grade B, API 5L X52 to X65, and stainless pipes like ASTM A312 TP304 and TP316 in a wide range of dimensions from ½ inch to 48 inches. These are both seamless and ERW pipes whose production methods, ASME B36.10, and B36.19, standards are strictly ​‍​‌‍​‍‌followed.

Hydrocarbon, water injection, and utility process lines usually require wall thickness schedules from SCH 10 to SCH XXS. They undergo ultrasonic testing, hydrostatic testing, and positive material identification. Material selection is a compromise between yield strength, elongation, and impact values, especially in cases of low-temperature services or cyclic loading in gas compression and offshore tie-in operations.

In addition to piping, mechanical joints are dependent on fasteners whose manufacture involves stringent dimensional and metallurgical controls. Bolting for flanged joints is commonly made to ASTM A193 and A194 standards, with the diameter ranging from M12 to M72 or ½ inch to 3 inches, which is determined by the flange class ratings, for example, ASME Class 150 through 2500. Quality documents generally consist of mill test certificates, EN 10204 3.1 certification, heat numbers, and traceability records for services of high importance.

In corrosive environments laden with chlorides or absence of protective barrier, the duplex bolts are delivered to UAE projects and their specification grades are UNS S31803 or S32205. These types have higher proof load, better resistance to pitting, and a controlled ferrite-austenite balance which on the whole, makes them suitable for use in offshore platforms, desalination plants, and high integrity pipeline assemblies.