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Quality Schedule 10 Welded Stainless Steel Pipe Beveled Ends Annealed And Pickled factory
Quality Schedule 10 Welded Stainless Steel Pipe Beveled Ends Annealed And Pickled factory

Schedule 10 Welded Stainless Steel Pipe Beveled Ends Annealed And Pickled

Basic Properties
Place of Origin: MADE IN CHAINA
Brand Name: Baosteel，TISCO
Certification: EN 10204 Type 3.1 / 3.2 available
Model Number: 201 / 202 / 301 / 302 / 303 / 304 / 304L / 305 / 309S / 310S / 316 / 316L / 317 / 317L / 321 / 347 / 409L / 410 / 420 / 430 / 440C / 2205 / 2507
Trading Properties
Minimum Order Quantity: 100kg
Price: Negotiable (Request a Quote)
Payment Terms: T/T，D/P，D/A，Western Union，PayPal
Supply Ability: 10000tons
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Molybdenum Alloy Stainless Steel Pipe

Stainless Steel Pipe Chloride Resistance

Schedule 10 Welded Stainless Steel Pipe
Product Summary
The Large Diameter Stainless Steel Welded Pipe is manufactured by roll forming high-quality stainless steel plate or coil into a cylindrical shape and welding the longitudinal seam using advanced TIG, plasma, or submerged arc welding (SAW) technology. Designed for applications requiring high flow ...

Product Details

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Schedule 10 Welded Stainless Steel Pipe

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Welded Stainless Steel Pipe Annealed Pickled
Country Of Origin: MADE IN CHAINA
Brand: Baosteel，TISCO
Certifications: ISO/EN 10204 Type 3.1 / 3.2 Available
Grade: 201 / 202 / 301 / 302 / 303 / 304 / 304L / 305 / 309S / 310S / 316 / 316L / 317 / 317L / 321 / 347 / 409L / 410 / 420 / 430 / 440C / 2205 / 2507 / 630 (17-4PH)
MOQ: 100kg
Price: Negotiable (Request A Quote)
Packaging: Wooden Case / Wooden Pallet / Steel Frame / Carton / Woven Bag
Delivery Time: 15-25days
Payment Terms: T/T，D/P，D/A，Western Union，PayPal
Supply Capacity: 10000tons
Product Description

The Large Diameter Stainless Steel Welded Pipe is manufactured by roll forming high-quality stainless steel plate or coil into a cylindrical shape and welding the longitudinal seam using advanced TIG, plasma, or submerged arc welding (SAW) technology. Designed for applications requiring high flow capacity, structural strength, and corrosion resistance, this pipe is available in diameters exceeding the limits of seamless manufacturing. It offers a cost-effective solution for large-scale fluid transport, structural supports, and industrial process systems where diameter requirements range from 14 inches to 48 inches and beyond.

Product Specifications
Parameter Details
Standards ASTM A312, A358, A409; EN 10217-7; ASME B36.19
Available Grades 304, 304L, 316, 316L, 317L, 321, 347, 310S, Duplex 2205
Outer Diameter 14″ – 48″ (323.9 mm – 1219 mm); larger upon request
Wall Thickness 3.0 mm – 12.7 mm (Schedule 5S, 10S, 40S; or custom)
Length 3m, 6m, or custom lengths up to 12m
Welding Process TIG (GTAW), Plasma, SAW (Submerged Arc Welding)
Weld Seam Single longitudinal seam (straight seam)
Heat Treatment Annealed after welding (standard)
Surface Finish Pickled, passivated, or mill finish
End Finish Plain ends, beveled ends (for field welding)
Chemical Composition (Typical Values, %)
Grade C ≤ Si ≤ Mn ≤ P ≤ S ≤ Cr Ni Mo
304L 0.03 0.75 2.00 0.045 0.030 18.0-20.0 8.0-12.0 –
316L 0.03 0.75 2.00 0.045 0.030 16.0-18.0 10.0-14.0 2.0-3.0
317L 0.03 0.75 2.00 0.045 0.030 18.0-20.0 11.0-15.0 3.0-4.0
Duplex 2205 0.03 1.00 2.00 0.030 0.020 22.0-23.0 4.5-6.5 3.0-3.5

Composition per ASTM A312 / A358.

Mechanical Properties (at Room Temperature)
Grade Tensile Strength (MPa) min Yield Strength (MPa) min Elongation (%) min Hardness (HB) max
304L 485 170 35 201
316L 485 170 35 217
317L 515 205 35 217
Duplex 2205 620 450 25 290

Tested in accordance with ASTM E8 / E8M.

Key Features
  • Large Diameter – Up to 48″ (1219 mm) and beyond
  • High Flow Capacity – Ideal for bulk fluid transport
  • Cost-Effective – Lower cost than seamless pipe at large diameters
  • Long Lengths – Up to 12 meters, reducing field joints
  • Annealed After Welding – Restores corrosion resistance
  • 100% Hydrostatic Tested – Verified pressure integrity
  • Beveled Ends Available – Ready for field welding
  • Wide Grade Selection – 304L, 316L, Duplex, and more
Large Diameter vs. Standard Diameter
Property Large Diameter (14″-48″) Standard Diameter (1/8″-12″)
Manufacturing Plate-formed, welded Coil-formed, welded or seamless
Wall thickness 3.0 mm – 12.7 mm 0.5 mm – 12.7 mm
Typical length 6m 6m
Welding process TIG / Plasma / SAW TIG / Laser / ERW
Primary applications Bulk fluid, structural, utilities Process piping, instrumentation
Dimensional Tolerances (ASTM A312 / A358)
Parameter Tolerance
Outer diameter ±0.8% (max ±6.4 mm)
Wall thickness ±10%
Length (fixed) +0 / -3 mm
Straightness 0.2% of total length
Ovality Within OD tolerance
Schedule Wall Thickness – Large Diameter (ASME B36.19)
NPS (inch) OD (mm) Schedule 5S (mm) Schedule 10S (mm) Schedule 40S (mm)
14″ 355.6 3.96 4.78 9.53
16″ 406.4 4.19 4.78 9.53
18″ 457.2 4.19 4.78 9.53
20″ 508.0 4.78 5.54 9.53
24″ 609.6 5.54 6.35 9.53
30″ 762.0 6.35 7.92 9.53
36″ 914.4 6.35 7.92 9.53
42″ 1066.8 6.35 7.92 9.53
48″ 1219.2 6.35 7.92 9.53
Applications
Water & Wastewater
  • Raw water intake lines
  • Potable water transmission mains
  • Effluent discharge lines
  • Desalination plant feed lines
Oil & Gas
  • Low-pressure gathering lines
  • Fire water mains
  • Cooling water supply and return
  • Utility water distribution
Chemical & Petrochemical
  • Bulk chemical transfer lines
  • Cooling water circuits
  • Process water systems
  • Tank farm piping
Power Generation
  • Cooling water intake and discharge
  • Circulating water systems
  • Condenser water lines
Marine & Offshore
  • Seawater cooling lines
  • Ballast water systems
  • Offshore platform utility piping
Structural
  • Pile casings
  • Caisson pipes
  • Support columns
Mining
  • Slurry lines (mild abrasive)
  • Process water distribution
Welding Processes for Large Diameter Pipe
Process Description Typical Use
TIG (GTAW) Root pass for high-quality welds Sanitary, high-purity
Plasma Deep penetration, smooth bead General industrial
SAW (Submerged Arc) High deposition rate Heavy wall, structural
Combination (TIG + SAW) TIG root + SAW fill/cap High-quality + efficient
Weld Quality Assurance
Inspection Method Standard Practice
Hydrostatic Test 100% of production
Radiographic Test (RT) Upon request (typically 10-100%)
Ultrasonic Test (UT) Upon request
Dye Penetrant Test (PT) Upon request for weld surface
Visual Inspection 100% of weld seam
Large Diameter Welded vs. Seamless
Property Large Diameter Welded Seamless (if available)
Max diameter 48″+ 24″ (610 mm)
Cost Lower (not available seamless) N/A – seamless not available
Availability Stocked or short lead time Not available above 24″
Weld seam Present – NDT verified None
Wall consistency Good N/A

Contact Us

For inquiries, technical datasheets, or custom sizes, please contact our sales team.

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