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  • TOBO STEEL GROUP CHINA
    Brazil---Aimee
    In the latest vendor rating, TOBO won the excellent rating, it is good, will continue to cooperate.
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    Thailand ---Dave Mulroy
    ASTM A213 T9 Alloy steel pipe ,Stable quality , good price, excellent serive, TOBO GROUP is our trustworthy partner .
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    USA ---Alfaro
    ASTM A182 F55 Super Duplex Flange ,Good quality , we like that ! And delivery time in time also ,very professional.
Contact Person : Joy Wang
Phone Number : 0086-21-31261985
WhatsApp : +8613524668060

Factory Direct Supply Stainless Steel Welded Pipe 304/316L ASTM A312 Schedule 40 for Sale

  • Factory Direct Supply Stainless Steel Welded Pipe 304/316L ASTM A312 Schedule 40 for Sale
  • Factory Direct Supply Stainless Steel Welded Pipe 304/316L ASTM A312 Schedule 40 for Sale
  • Factory Direct Supply Stainless Steel Welded Pipe 304/316L ASTM A312 Schedule 40 for Sale
  • Factory Direct Supply Stainless Steel Welded Pipe 304/316L ASTM A312 Schedule 40 for Sale
  • Factory Direct Supply Stainless Steel Welded Pipe 304/316L ASTM A312 Schedule 40 for Sale
Place of Origin Shanghai,China
Brand Name TOBO
Certification ISO/TUV/SGS
Model Number Stainless Steel Welded Pipe
Minimum Order Quantity 1PC
Price Negotiable
Packaging Details Standard Shipping Package
Delivery Time 15-30 Workdays
Payment Terms T/T, Western Union
Supply Ability 10 Ton/Month
Product Details
Product Name Factory Direct Supply Stainless Steel Welded Pipe 304/316L ASTM A312 Schedule 40 For Sale Standards ASTM, DIN, JIS, GB
Finish Polished , Mill Finished Country Of Origin MADE IN CHAINA
Types Stainless Steel Welded Pipe Package Standard Export Package
Standard ASTM, ISO End Plain End, Beveled End
Strength High Od Size 10-100mm
Process ERW , EFW Etc Pipe Steel Tube
Surface 400# Corrosion Resistance Yes
Mechanicalproperties Tensile Strength 520-750 MPa, Yield Strength 205-450 MPa Polish Bright, Mirror
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Product Description

Factory Direct Supply Stainless Steel Welded Pipe 304/316L ASTM A312 Schedule 40 for Sale

 

1. Product Description 

 

Stainless steel welded pipe is a longitudinally or spirally welded tubular product manufactured from cold-rolled or hot-rolled stainless steel strip/coil. The forming process is carried out on continuous roll-forming mills, followed by seam welding using Tungsten Inert Gas (TIG), High-Frequency Induction (HFI), or Submerged Arc Welding (SAW). Post-weld treatment includes solution annealing (for austenitic grades) and pickling/passivation to restore corrosion resistance.

Material grades are designated according to ASTM, EN, JIS, or GB standards. Commonly supplied grades include:

Austenitic: 304, 304L, 316, 316L, 310S, 321

Ferritic: 409L, 430

Martensitic: 410, 420

Duplex: 2205, 2507

Super-austenitic: 904L, 254SMO

2. Product Applications 

  • Coil slitting and edge preparation

  • Forming (cold rolling) into open tube

  • Continuous welding (TIG/ERW/SAW) with inert gas shielding

  • Weld bead trimming or scarfing

  • Solution annealing (in-line or batch furnace)

  • Sizing and straightening

  • Pickling or mechanical descaling

  • Cutting to length

  • End finishing and inspection

3. Product Advantages 

Parameter Range / Tolerance
Outer Diameter (OD) – round 6 mm to 1200 mm (longitudinal); 300 mm to 4800 mm (spiral)
Square / Rectangular sizes 10×10 mm to 600×400 mm
Wall Thickness 0.3 mm to 25 mm (longitudinal); up to 50 mm (spiral)
Length Standard 6 m; custom 1 m to 20 m; coils available
OD Tolerance ±0.5% or ±0.3 mm (whichever is greater)
Wall Thickness Tolerance ±10% of nominal
Straightness ≤1.5 mm per meter, maximum 3 mm over total length
Ovality (round pipes) ≤1% of OD
Squareness of ends ≤1.5° for plain ends

Factory Direct Supply Stainless Steel Welded Pipe 304/316L ASTM A312 Schedule 40 for Sale

4.Key Technical Parameters

Grade Yield Strength (Rp0.2, MPa) Tensile Strength (Rm, MPa) Elongation (A5, %) Hardness (HB max)
304 205 520 40 201
304L 170 485 40 201
316 205 520 40 217
316L 170 485 40 217
310S 205 520 40 217
409L 205 380 20 192
430 205 420 18 183
2205 450 620 25 293
2507 550 730 20 310

 

FAQ

1. Are you trading company or manufacturer ? We are manufacturer ,You can see the certification.

2.How long is your delivery time? Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.

3. Do you provide samples ? is it free or extra ? Yes, we could offer the sample for free charge but need pay the cost of freight.

4. What is your terms of payment ? Payment<=1000USD, 100% in advance. Payment>=1000USD, 50% T/T in advance ,balance before shippment.

Tags:

Welded Stainless Steel Tubing

SS Welded Tube

Large Stainless Steel Pipe