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Quality Precision OD 1/8" - 12" Stainless Steel Round Tube Schedule 40 Seamless Welded factory
Quality Precision OD 1/8" - 12" Stainless Steel Round Tube Schedule 40 Seamless Welded factory

Precision OD 1/8" - 12" Stainless Steel Round Tube Schedule 40 Seamless Welded

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

12" Stainless Steel Round Tube
Product Summary
Schedule 40 Stainless Steel Pipe is a standard wall thickness pipe widely used in industrial, commercial, and residential applications. It offers a balanced combination of strength, corrosion resistance, and cost-effectiveness. Manufactured from high-quality austenitic stainless steel grades such as ...

Product Details

Highlight:

12" Stainless Steel Round Tube

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Precision Stainless Steel Round Tube

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1/8" SS Round Tube
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

Schedule 40 Stainless Steel Pipe is a standard wall thickness pipe widely used in industrial, commercial, and residential applications. It offers a balanced combination of strength, corrosion resistance, and cost-effectiveness. Manufactured from high-quality austenitic stainless steel grades such as 304 and 316, this pipe is suitable for fluid transport, structural support, and process piping systems. Schedule 40 wall thickness provides higher pressure ratings than Schedule 10 while remaining lighter and more affordable than Schedule 80. Available in seamless or welded construction.

Product Specifications
ParameterDetails
StandardsASTM A312, A269; ASME SA312; EN 10217-7
Available Grades304, 304L, 316, 316L
Nominal Pipe Size (NPS)1/8″ – 24″ (6 mm – 610 mm)
Wall ThicknessSchedule 40 (per ASME B36.19)
Length6m standard; custom lengths available
Manufacturing ProcessSeamless (cold drawn / hot rolled) or Welded (TIG / ERW)
Heat TreatmentAnnealed after manufacturing
Surface FinishPickled, passivated, or mill finish
End FinishPlain ends, beveled ends, or threaded
Schedule 40 Wall Thickness (ASME B36.19)
NPS (inch)OD (mm)Wall Thickness (mm)Weight (kg/m)
1/8″10.31.730.37
1/4″13.72.240.63
1/2″21.32.771.27
3/4″26.72.871.69
1″33.43.382.51
1-1/2″48.33.684.05
2″60.33.915.44
3″88.95.4911.29
4″114.36.0216.07
6″168.37.1128.26
8″219.18.1842.55
10″273.19.2760.31
12″323.99.5373.93
Chemical Composition (Typical Values, %)
GradeC ≤Si ≤Mn ≤P ≤S ≤CrNiMo
3040.080.752.000.0450.03018.0-20.08.0-10.5–
304L0.030.752.000.0450.03018.0-20.08.0-12.0–
3160.080.752.000.0450.03016.0-18.010.0-14.02.0-3.0
316L0.030.752.000.0450.03016.0-18.010.0-14.02.0-3.0
Mechanical Properties (at Room Temperature)
GradeTensile Strength (MPa) minYield Strength (MPa) minElongation (%) minHardness (HB) max
30451520535201
304L48517035201
31651520535217
316L48517035217

Tested in accordance with ASTM E8 / E8M.

Pressure Rating (304 / 316 at 100°F / 38°C)
NPS (inch)Schedule 40 Working Pressure (psi)Schedule 40 Working Pressure (MPa)
1/2″3,00020.7
1″2,60017.9
2″1,80012.4
3″1,60011.0
4″1,4009.7
6″1,1007.6
8″9506.6
10″8706.0
12″7605.2

Per ASME B31.3. Pressure decreases at elevated temperatures. Contact us for temperature derating.

Key Features
  • Standard Wall Thickness – Widely available and interchangeable
  • Good Pressure Rating – Suitable for most process and utility applications
  • Excellent Corrosion Resistance – 304 for general service; 316 for marine/chemical
  • Cost-Effective – Balance between strength and material cost
  • Weldable – Excellent weldability with standard methods
  • Threadable – Sufficient wall thickness for threading (NPS 2″ and below)
  • Available in Seamless or Welded – Options for different pressure requirements
Schedule Comparison (2″ NPS – 304 Stainless Steel)
ScheduleWall (mm)Weight (kg/m)Working Pressure (psi)Relative Cost
10S2.773.911,200Low
40S3.915.441,800Medium
80S5.547.482,400High
Applications
  • Process Piping – Chemical, petrochemical, and pharmaceutical lines
  • Water Treatment – Potable water, reverse osmosis, and wastewater
  • Food & Beverage – Dairy, brewery, and edible oil transfer
  • HVAC – Chilled water, condenser water, and steam lines
  • Oil & Gas – Utility and low-pressure process lines
  • Fire Protection – Sprinkler system piping
  • Structural – Handrails, supports, and frameworks
  • Plumbing – Hot and cold water distribution
Contact Us

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

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