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TP 321 stainless steel metric tubing, Round Steel Tubing ASTM A312 / A213 / A249

Very competitive price and the tubes are well polished, we are very satisfied with Spezilla from our cooperation since year 2010.

—— Nathalie Gulli - Mexico

Spezilla supports our group very well, and now we are approved supplier of goverment, they are reliable and flexible! Spezilla always answers!

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Good quality, fast delivery, Spezilla has been supplying heat exchanger tubes for our projects since 2008, we really appreciate your support!

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TP 321 stainless steel metric tubing, Round Steel Tubing ASTM A312 / A213 / A249

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Large Image :  TP 321 stainless steel metric tubing, Round Steel Tubing ASTM A312 / A213 / A249

Product Details:
Place of Origin: CHINA
Brand Name: SPEZILLA
Certification: ISO
Model Number: Round Tube
Payment & Shipping Terms:
Minimum Order Quantity: Negotiation
Price: Negotiation
Packaging Details: wooden cases/Bundle
Delivery Time: 20 days
Supply Ability: 1000Tons/Month
Detailed Product Description
Product Name: Stainless Steel Tube Standard: ASTM AISI DIN EN
Grade: TP321 Size: 6mm-1016mm
Type: Seamless/Welded Process: ERW Welding
Surface Finish: Fully Annealed MTR: EN10204 3.1
Shape: Round Package: Wooden Case
High Light:

ss round tube


food grade stainless tubing

TP 321 stainless steel metric tubing, Round Steel Tubing ASTM A312 / A213 / A249​


SS 321 Welded Pipe, Stainless Steel 321 UNS S32100 Seamless Pipes & Tubes, SS 321 ERW Pipes Supplier

Stainless Steel 321 werkstoff nr. 1.4541 Pipes & Tubes, Stainless Steel 321 Welded Tubes, Stainless Steel 321 EFW Pipes Exporter.

SPEZILLA is one of leading manufacturers of high quality Stainless Steel 321 Pipes and Tubes which find application across diverse sectors. We offer qualitative SS 321 Pipes and Tubes in different sizes and shapes that are being designed as per the national and international standard quality of raw materials. Alloy 321 is a heat resistant, titanium stabilized, austenitic alloy that's commonly used for service in the 1000°-1600°F temperature range. Also known as UNS S32100, these pipes and tubes are primarily used in applications that involve continuous and intermittent service temperatures within the carbide precipitation range of 800°-1500°F. Recognized as WNR 1.4541, these SS 321 Seamless Pipes are very much similar to Grade 304, but with a titanium addition of at least five times the carbon content. Our Stainless Steel 321 Welded Tubes can be offered in customized length sizes and shapes, and are available at market leading prices.



Tube is widely used for all
types of fabrication projects that are exposed to the elements - chemical, acidic, fresh water, and salt water environments. Some sizes are available with a 180 grit brushed polish.
  • Specifications: ASTM A554, A269, T304, non-polished finish
  • Applications: frame work, braces, supports, marine, food, etc.
  • Workability: Easy to Weld, Moderate Cutting, Forming and Machining.
  • Mechanical Properties:Brinell = 170, Tensile = 85,000 +/-,
    Yield = 34,000 +/-, Nonmagnetic
  • How is it Measured?OD(A) X Wall (B) X ID (C) X Length
  • Available Stock Sizes: 2ft, 4ft, 6ft, 8ft, 10ft, 20ft or Cut to Size


Specifications ASTM A/ASME SA213/A249/A269/A312/A358 CL. I to V ASTM A789/A790
Dimensions ASTM, ASME and API
ERW 321 Pipes & Tubes 1/2" NB - 24" NB
EFW 321 Pipes & Tubes 6" NB - 100" NB
321 Pipes & Tubes 1/2" NB - 24" NB
Tubing Size 1/8″NB TO 30″NB IN
Specialized in Large Diameter Size
Schedule SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS
Form Round, Square, Rectangular, Hydraulic Etc
Type Seamless / ERW / Welded / Fabricated / LSAW Pipes
Length Single Random, Double Random & Cut Length.
End Plain End, Beveled End, Treaded


Chemical Composition ranges for stainless steel 321 grade

Grade C Mn Si P S Cr Mo Ni N Other
321 min. - 2 0.75 0.045 0.03 17 - 9 0.1 Ti=5(C+N)
max 0.08 19 12 0.7

Mechanical properties of stainless steel 321 grade


Grade Tensile Strength (MPa) min Yield Strength 0.2% Proof (MPa) min Elongation (% in 50mm) min Hardness
Rockwell B (HR B) max Brinell (HB) max
321 515 205 40 95 217


Grade Specifications for stainless steel 321 grade

Grade UNS No Old British Euronorm Swedish SS Japanese JIS
BS En No Name
321 S32100 321S31 58B, 58C 1.4541 X6CrNiTi18-10 2337 SUS 321


TP 321 stainless steel metric tubing, Round Steel Tubing ASTM A312 / A213 / A249 0





Contact Details
Spezilla Tube Co., Ltd. (Shanghai)

Contact Person: Will Ma

Tel: +86 13918539222

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