Discover unrivaled quality with Sun Mark’s premium stainless steel LSAW tube range. Engineered using advanced double-submerged arc welding; every Sun Mark’s LSAW pipe delivers superior strength, perfect roundness and flawless welds for high-pressure and corrosive environments. Available in 304/304L, 316/316L, 316Ti grades, sizes 168–813mm OD, wall thickness 2.5–25.4mm and lengths up to 6.1m. Fully compliant with ASTM A358/A409/A778, solution-annealed, pickled & passivated. Each tube undergoes 100% radiographic, ultrasonic and hydrostatic testing for zero-defect assurance. Trusted worldwide for oil & gas, marine and structural projects. Fast global delivery and custom solutions available. Strengthen your pipeline integrity—engage with Sun Mark at sunmarkstainless.com.