ASTM A106 Grade B Seamless Carbon Steel Pipe for high-temperature service. Manufactured to ASTM A106/A53 standards, our carbon steel pipes are widely used in oil and gas, petrochemical, power generation, and construction industries. Available in schedules SCH20 through SCH160, sizes from 1/2 to 48 inches. Each pipe undergoes rigorous hydrostatic testing, nondestructive electric inspection, and mechanical property testing to ensure compliance with international standards.