Buy Large Diameter Steel Pipes

Industrial pipe sizes can reach significant diameters depending on manufacturing capabilities and project demands. In our available product offering, sizes are supplied up to 72" nominal diameter. These components accommodate wall thicknesses ranging from SCH 10 through XXH, providing the structural integrity and flow capacity needed for critical fluid, gas, or process transport.

The largest diameter pipe available in our standard offering reaches up to 72" in size. These large diameter steel pipes are offered in carbon steel, stainless steel, and alloy steel, manufactured from seamless or welded pipe and plate to meet recognized ASME B16 series, MSS-SP, and ASTM industrial design standards.

Pricing for a steel pipe is not specified as a fixed flat rate because total cost depends on diameter, wall thickness schedule, material grade—such as A234 WPB carbon steel or A403 WP304/316 stainless steel—and manufacturing method. Exact pricing is available upon request by submitting your required dimensions and material specifications to our sales team.

You can purchase large diameter steel pipes directly through industrial suppliers like Twinco Industrial. We provide purchasing options for industrial pipes and fittings up to 72" in size, manufactured to ASME, MSS-SP, and ASTM standards, supporting pipeline construction, facility upkeep, and heavy infrastructure projects across our service areas including the USA, Canada, and Mexico.

The largest size steel pipe available in our catalog is 72" nominal diameter. These pipes are available across multiple wall thicknesses, from SCH 10 up to XXH, in materials such as A234 WPB carbon steel, A403 WP304/316 stainless steel, and alloy steels engineered for high-pressure and high-flow operational conditions.

Our industrial pipes and fittings are manufactured to meet ASME B16.9, ASME B16.28, and MSS-SP-75 standards, alongside broader ASTM specifications. Available materials include A234 WPB carbon steel, A403 WP304/316 stainless steel, and alloy steels, ensuring dimensional compliance, long-term operational strength, and process reliability across critical industrial installations.