Discover top-quality ASME SA213 seamless steel tubes ideal for heat exchangers. Available in a range of sizes from OD 19 to 114.3mm and thicknesses from 2 to 10mm. Customizable lengths from 3 to 22 meters ensure a perfect fit for your project. Made from ASTM A213 grade materials including T11, T22, T5, T23, T9, T91, and 15CrMoG, guaranteeing durability and reliability.