|
Parameter |
Specification Details |
|
Outer Diameter (OD) |
6 mm up to 630 mm (0.24 inches to 24.8 inches) |
|
Wall Thickness |
0.5 mm up to 50 mm (0.02 inches to 1.97 inches) |
|
Length Options |
Standard random lengths, single fixed lengths, double random lengths, or custom precision cutting up to 12 meters |
|
Profile Shapes |
Round, Square, Rectangular, and custom specialized geometrical profiles |
|
Surface Finishes |
Annealed & Pickled (AP), Bright Annealed (BA), 180G to 600G Mechanical Polish, Hairline finish |
|
Manufacturing Standards |
ASTM A554, ASTM A249, ASTM A312, EN 10217-7, DIN 17457, JIS G3448, GB/T 12770 |
Why Choose Us
Strict Quality Assurance & Testing
Every production batch undergoes comprehensive evaluation, including destructive and non-destructive testing (NDT), dimensional verification, hydrostatic testing, and chemical composition analysis.
Flexible Customization Capabilities
We accommodate complex project requirements through non-standard dimensional rolling, specialized alloy grades, custom surface profiling, OEM production runs, and export-grade protective packaging.
Global Logistics and Export Expertise
Our experienced international logistics team ensures secure documentation handling, fumigation-free wooden crate packaging, reliable container loading, and timely shipments to ports worldwide.
Key Performance Benefits
High Dimensional Precision: Automated forming and multi-stage sizing mills guarantee tight outer diameter and wall thickness tolerances, ensuring seamless assembly.
Superior Weld Integrity: High-frequency solid-state welding combined with online Eddy Current Testing (ET) ensures zero defects along the weld seam.
Excellent Corrosion Resistance: Premium raw material inputs paired with continuous bright annealing restore the chromium-oxide passive layer for optimal lifespan in corrosive environments.
Cost-Effective Efficiency: Streamlined automated manufacturing reduces production overhead, delivering high-performance piping solutions at competitive global market prices.
Oil and Gas Industry
Used for non-critical fluid lines, platform structural supports, and auxiliary processing infrastructure.
Chemical and Petrochemical Processing
Deployed in chemical transport systems, corrosive fluid handling, and plant piping networks.
Food, Beverage, and Dairy Equipment
Hygienic tubing solutions applied in processing lines, CIP systems, and sanitary equipment fabrication.
Pharmaceutical and Biotech Facilities
High-purity polished pipes utilized in cleanrooms, purified water loops, and sterile transfer systems.
Water Treatment and Desalination
Corrosion-resistant piping for municipal water supply, wastewater treatment, and filtration plants.
Construction and Architectural Engineering
Structural frameworks, handrails, facades, and interior architectural decorative installations.
Automotive Manufacturing
Exhaust components, structural chassis parts, and fluid transport lines.
Mechanical Engineering and Equipment
Hydraulic cylinder tubes, conveyor rollers, and heavy machinery components.
Heat Exchanger Systems
Tubing engineered for condensers, industrial coolers, and thermal recovery units.
Raw Material Inspection
High-grade stainless steel strips (slits) are thoroughly checked for chemical composition and thickness uniformity.
Forming & Rolling
Precision strip is progressively shaped into a cylindrical or profile form through multi-roll automated forming mills.
High-Frequency Welding (ERW)
Solid-state high-frequency induction currents heat the edges to the welding point, pressing them together without filler metal for a seamless homogeneous weld seam.
Weld Bead Treatment
Internal and external weld beads are trimmed, cleaned, and normalized to ensure smooth inner and outer surfaces.
Solution Annealing & Cooling
Pipes pass through a continuous bright annealing furnace to relieve internal stresses and restore optimal corrosion resistance.
Sizing & Straightening
Multi-stage sizing mills and straightening machines ensure exact outer diameter and straightness tolerances.
Non-Destructive Testing (NDT)
Eddy current testing or hydrostatic testing is performed to verify weld integrity.
Cutting & Finishing
Precision cut-to-length, surface polishing, final inspection, and tagging.
Eddy Current Testing (ET): 100% online electromagnetic testing applied along the entire weld seam to detect micro-defects or anomalies.
Mechanical Property Testing: Regular tensile strength, yield strength, elongation, and flattening/flaring tests per batch requirements.
Dimensional Inspection: Laser micrometers and digital calipers monitor outer diameter, wall thickness, and ovality continuously during production.
Chemical Analysis: Spectrometric analysis ensures raw materials strictly comply with ASTM, EN, or JIS material grade requirements.
As one of the most professional erw stainless steel pipe manufacturers and suppliers in China, we're featured by quality products and good price. Please rest assured to wholesale erw stainless steel pipe in stock here from our factory. Contact us for customized service and OEM service.
304L Hot rolled Straight Welded Pipe, schedule 40 galvanized steel pipe, schedule 40 stainless steel pipe dimensions(0/10)
