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Quality Large Diameter Stainless Steel Welded Pipe Schedule 10S 40S Cut To Length factory
Quality Large Diameter Stainless Steel Welded Pipe Schedule 10S 40S Cut To Length factory

Large Diameter Stainless Steel Welded Pipe Schedule 10S 40S Cut To Length

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

Stainless Steel Welded Pipe Schedule 10S
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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Stainless Steel Welded Pipe Schedule 10S

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Stainless Steel Welded Pipe Schedule 40S

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Large Diameter Stainless Steel Pipe Sch 10S
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
ParameterDetails
StandardsASTM A312, A358, A409; EN 10217-7; ASME B36.19
Available Grades304, 304L, 316, 316L, 317L, 321, 347, 310S, Duplex 2205
Outer Diameter14″ – 48″ (323.9 mm – 1219 mm); larger upon request
Wall Thickness3.0 mm – 12.7 mm (Schedule 5S, 10S, 40S; or custom)
Length3m, 6m, or custom lengths up to 12m
Welding ProcessTIG (GTAW), Plasma, SAW (Submerged Arc Welding)
Weld SeamSingle longitudinal seam (straight seam)
Heat TreatmentAnnealed after welding (standard)
Surface FinishPickled, passivated, or mill finish
End FinishPlain ends, beveled ends (for field welding)
Chemical Composition (Typical Values, %)
GradeC ≤Si ≤Mn ≤P ≤S ≤CrNiMo
304L0.030.752.000.0450.03018.0-20.08.0-12.0–
316L0.030.752.000.0450.03016.0-18.010.0-14.02.0-3.0
317L0.030.752.000.0450.03018.0-20.011.0-15.03.0-4.0
Duplex 22050.031.002.000.0300.02022.0-23.04.5-6.53.0-3.5

Composition per ASTM A312 / A358.

Mechanical Properties (at Room Temperature)
GradeTensile Strength (MPa) minYield Strength (MPa) minElongation (%) minHardness (HB) max
304L48517035201
316L48517035217
317L51520535217
Duplex 220562045025290

Tested in accordance with ASTM E8 / E8M.

Large Diameter vs. Standard Diameter
PropertyLarge Diameter (14″-48″)Standard Diameter (1/8″-12″)
ManufacturingPlate-formed, weldedCoil-formed, welded or seamless
Wall thickness3.0 mm – 12.7 mm0.5 mm – 12.7 mm
Typical length6m6m
Welding processTIG / Plasma / SAWTIG / Laser / ERW
Primary applicationsBulk fluid, structural, utilitiesProcess piping, instrumentation
Dimensional Tolerances (ASTM A312 / A358)
ParameterTolerance
Outer diameter±0.8% (max ±6.4 mm)
Wall thickness±10%
Length (fixed)+0 / -3 mm
Straightness0.2% of total length
OvalityWithin OD tolerance
Schedule Wall Thickness – Large Diameter (ASME B36.19)
NPS (inch)OD (mm)Schedule 5S (mm)Schedule 10S (mm)Schedule 40S (mm)
14″355.63.964.789.53
16″406.44.194.789.53
18″457.24.194.789.53
20″508.04.785.549.53
24″609.65.546.359.53
30″762.06.357.929.53
36″914.46.357.929.53
42″1066.86.357.929.53
48″1219.26.357.929.53
Welding Processes for Large Diameter Pipe
ProcessDescriptionTypical Use
TIG (GTAW)Root pass for high-quality weldsSanitary, high-purity
PlasmaDeep penetration, smooth beadGeneral industrial
SAW (Submerged Arc)High deposition rateHeavy wall, structural
Combination (TIG + SAW)TIG root + SAW fill/capHigh-quality + efficient
Weld Quality Assurance
Inspection MethodStandard Practice
Hydrostatic Test100% 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 Inspection100% of weld seam
Large Diameter Welded vs. Seamless
PropertyLarge Diameter WeldedSeamless (if available)
Max diameter48″+24″ (610 mm)
CostLower (not available seamless)N/A – seamless not available
AvailabilityStocked or short lead timeNot available above 24″
Weld seamPresent – NDT verifiedNone
Wall consistencyGoodN/A
Contact Us

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

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