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

Brand Name:SPEZILLA
Certification:ISO
Model Number:Round Tube
Minimum Order Quantity:Negotiation
Delivery Time:20 days
Place of Origin:CHINA
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Location: Shanghai Shanghai China
Address: H.Q.803, No.18 Baosheng Road, Songjiang, Shanghai, China
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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

SpecificationsASTM A/ASME SA213/A249/A269/A312/A358 CL. I to V ASTM A789/A790
DimensionsASTM, ASME and API
ERW 321 Pipes & Tubes1/2" NB - 24" NB
EFW 321 Pipes & Tubes6" NB - 100" NB
321 Pipes & Tubes1/2" NB - 24" NB
Tubing Size1/8″NB TO 30″NB IN
Specialized inLarge Diameter Size
ScheduleSCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS
FormRound, Square, Rectangular, Hydraulic Etc
TypeSeamless / ERW / Welded / Fabricated / LSAW Pipes
LengthSingle Random, Double Random & Cut Length.
EndPlain End, Beveled End, Treaded

Chemical Composition ranges for stainless steel 321 grade

GradeCMnSiPSCrMoNiNOther
321min.-20.750.0450.0317-90.1Ti=5(C+N)
max0.0819120.7

Mechanical properties of stainless steel 321 grade


GradeTensile Strength (MPa) minYield Strength 0.2% Proof (MPa) minElongation (% in 50mm) minHardness
Rockwell B (HR B) maxBrinell (HB) max
3215152054095217

Grade Specifications for stainless steel 321 grade

GradeUNS NoOld BritishEuronormSwedish SSJapanese JIS
BSEnNoName
321S32100321S3158B, 58C1.4541X6CrNiTi18-102337SUS 321


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

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

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