Factory Price Hollow Tubes Carbon Steel Tubes Seamless Steel Pipe Alloy Steel Carbon

Product Brief

This product is a solid seamless hollow steel pipe made of high-grade carbon steel and alloy steel. Manufactured by hot rolling and cold drawing processes, the pipe features smooth inner and outer walls, no welding joints, high pressure resistance and excellent mechanical stability. Supplied directly from the factory, it covers diversified industrial specifications to meet global engineering and mechanical processing demands.

Product Specifications

Material Grade

Carbon Steel: 20#, 45#, Q235B, Q345B; Alloy Steel: 15CrMo, 35CrMo, 42CrMo

Outer Diameter

10mm - 610mm (Custom OEM Sizes)

Wall Thickness

1.5mm - 80mm

Standard Length

6m / 12m, Custom Fixed Length

Product Shape

Round Hollow Pipe, Square & Rectangular Optional

Execution Standard

ASTM A53/A106, API 5L, GB/T 8163, EN 10216

Surface Finishing

Black Oxide, Anti-rust Oil, Galvanized, Varnish Coating

Product Advantages

Factory Direct Supply: No intermediate distributors, stable stock and favorable ex-factory price.

Seamless One-piece Structure: Zero weld seam, good pressure resistance and deformation resistance for long-term service.

Superior Raw Material: Uniform steel texture, high hardness, tensile strength and abrasion resistance.

Flexible Customization: Support personalized customization of size, surface treatment and packaging.

Rigorous Quality Inspection: 100% pressure test, ultrasonic detection and component analysis before delivery.

Application Scope

Petrochemical Industry: Transportation pipelines for crude oil, natural gas and chemical medium under high pressure.

Construction Engineering: Steel structure brackets, building supporting pipes and hollow structural parts.

Mechanical Fabrication: Automobile parts, hydraulic pipelines, cylinder and mechanical accessories.

Power & Energy: Industrial boiler tubes, heat exchange tubes and power station piping systems.

Other Industries: Metallurgy, mining, pressure vessels and general pipeline projects.

Packaging & Delivery

Pipes are bundled with steel strips and coated with anti-rust oil for seaworthy packaging to prevent corrosion and damage during long-distance transportation. Container loading and bulk cargo shipment are available to meet different logistics demands.