Seamless Steel Pipe

High-performance 34CrMo4 seamless alloy steel tubes designed for CNG cylinder applications. Features 900 MPa tensile strength, 650 MPa yield strength, and compliance with EN 10297-1 and GB/T 8162 standards. Available in 356mm outer diameter with 7.4mm wall thickness and 12m standard length. Certified with EN 10204/3.1 documentation and comprehensive quality testing.

High-strength SAE 4130 chromoly seamless steel pipe with 155mm outer diameter and 110mm inner diameter. Features excellent weldability, 560 MPa tensile strength, and corrosion resistance up to 315°C. Ideal for aircraft, automotive racing, and industrial applications requiring lightweight durability.

JIS G3462 certified high pressure boiler seamless alloy steel pipes in STBA12, STBA13, STBA20, and STBA22 grades. Features 5.8m to 12m customizable lengths, multiple surface treatments, and comprehensive quality testing. Ideal for fluid, oil, gas, and structural applications with 10+ years manufacturing expertise and flexible payment options.

High-temperature seamless ferritic alloy-steel pipe designed for demanding industrial applications. Features excellent mechanical properties with tensile strength up to 620 MPa, suitable for bending, flanging, and welding operations. Manufactured to strict ASTM standards with comprehensive testing including hydrostatic and mechanical property verification.

Manufacturer-direct SIRM approved seamless carbon steel pipes with outer diameters from 15mm to 1626mm and wall thicknesses from 2mm to 30mm. Available in multiple material grades including 20#, 45#, Q345, and API 5L specifications. Features multiple seam types, surface treatments, and end configurations for industrial applications in petroleum, chemical, and construction sectors.

High-performance API 5L X65 steel pipes with 3PE corrosion protection coating. Large diameter seamless construction ideal for oil and gas pipelines. Available in multiple material grades including 20#, Q345B, and alloy options. Features standard export packaging with galvanizing, cutting, and threading services available. Certified to international standards including ASTM, BS, and CSA specifications.

Precision cold drawn seamless steel tubes compliant with DIN 2391 and ASTM standards. Available in 6-89mm outer diameter and 2-20mm wall thickness ranges. Features excellent pressure resistance, no oxidation layers, and multiple delivery conditions. Ideal for heat exchangers, boilers, and hydraulic systems with maximum 25m lengths.

High-quality 4-inch galvanized ERW steel pipe compliant with EN10217.1, ASTM A135, and A795 standards. Features hot-dipped galvanization for superior corrosion resistance, available in multiple grades including A106, Q195, Q235, and Q345. Ideal for building industry construction applications with comprehensive customer support and quality guarantee.

High-performance carbon seamless steel pipes compliant with ASTM API 5L X42-X80 standards. Available in 20-30 inch diameters with wall thickness 1-80mm. ISO9001:2008 certified with 20,000 tons monthly production capacity. Ideal for oil, gas, and industrial pipeline systems with international certification support.

Hot-rolled carbon steel seamless pipes with 57-159mm outer diameter and 8-25mm wall thickness. Certified to ASTM A1045, A53, and ISO9001:2008 standards. Ideal for mechanical structures, oil industry, and construction applications. Available in random 5-12m lengths or custom sizes with 60,000 tons monthly supply capacity.

High-strength ERW steel pipe in 200x200x8mm hollow section. Meets ASTM A500, SS400, S235JR standards. Durable, weldable, and ideal for structural applications. Custom sizes, coatings, and third-party inspection available. API 5L and ISO certified.

Cold drawn seamless steel tube for boilers, superheaters, and condensers. Meets ASME SA179, SA192, A213, and EN10216-5 standards. Withstands up to 9.8MPa and 650°C. Custom surface, threading, and packaging available for export.

High-strength S355 square steel pipes for structural applications. Available in sizes 30x30mm to 800x800mm with wall thickness 2-30mm. CE, ISO9001 certified. Custom lengths and surface finishes offered.

ASTM A106 Grade C seamless carbon steel pipe, 273mm OD x 14mm wall, designed for high-temperature boiler and refinery service. Offers 70,000 psi tensile strength, excellent weldability, and compliance with ASME standards. Custom lengths and schedules available.

ASTM A179 seamless cold drawn low carbon steel tube, 25mm OD. Ideal for heat exchangers and condensers. Features high durability, precise dimensions, and optional third-party inspection (SGS, BV). Custom sizes available.

High-strength seamless carbon steel pipe, ASTM A106 Gr B and API 5L Sch40 certified. OD 20-610mm, wall 0.8-30mm. Superior corrosion resistance, ideal for pipelines. Custom lengths, OEM, and free samples available.

High-quality cold drawn seamless steel pipe per ASME SA179. 100% hydrostatic tested, with marking. OD 6-114mm, WT 0.5-15mm. Ideal for heat exchangers, condensers, and high-pressure applications. Custom lengths and coatings available.

High-quality 6-inch seamless carbon steel pipe, ASTM SA106 Grade B, Schedule 10-160. Suitable for high-pressure and high-temperature applications. Durable, reliable, and available in custom lengths. Ideal for industrial piping systems.

High-performance Inconel 792 seamless pipes available in Schedule 10s and 80s configurations. Features excellent corrosion resistance, mechanical properties, and bright smooth surface finish. ISO certified with thickness range 0.2-150mm and comprehensive alloy options. Ideal for escalators, medical devices, automotive components, and industrial applications requiring superior durability.

Premium Inconel 713 and 908 seamless steel pipes with OD range 1-1500mm and wall thickness 0.1-80mm. Cold drawn manufacturing meets JIS, GB, ASTM, DIN, EN standards. Ideal for structural piping, boiler tubes, petroleum cracking, and oil/gas transmission with exceptional corrosion resistance and high-temperature performance.