Spezilla Tube Co., Ltd. 

Excellence in Stainless Steel Tubing

Home ProductsStainless Steel Heat Exchanger Tube

Annealed TP304N ASME SA213 Cold Drawn U Bend Tubing

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!

—— Jaime Arias - Argentina

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

—— Massimiliano Rossi - Italy

I'm Online Chat Now

Annealed TP304N ASME SA213 Cold Drawn U Bend Tubing

Annealed TP304N ASME SA213 Cold Drawn U Bend Tubing
Annealed TP304N ASME SA213 Cold Drawn U Bend Tubing

Large Image :  Annealed TP304N ASME SA213 Cold Drawn U Bend Tubing

Product Details:
Place of Origin: CHINA
Brand Name: SPEZILLA
Certification: ISO9001:2008
Model Number: ASME SA213 ASTM A213
Payment & Shipping Terms:
Minimum Order Quantity: Negotiation
Price: Negotiation
Packaging Details: WOODEN BOXED
Delivery Time: WITHIN 30 DAYS
Payment Terms: T/T, L/C
Supply Ability: 100 TONS / MONTH
Detailed Product Description
Tube Spec: ASME SA213 Material: TP317L
Shape: U Bend Tube Product Name: Stainless Steel Tube
Tube Type: SEAMLESS COLD DRAWN Size: 1/2'' - 1''
W.T.: 0.035'' - 0.120'' Finish: Annealed&Pickled
Package: Wooden Case Application: Heat Exchanger
High Light:

TP304N U Bend Tubing


SA213 U Bend Tubing


sa213 TP304N stainless u bends

TP304N U Bend Tubing,ASME SA213 Cold Drawn Stainless Steel U Bend Tubes​



Stainless steel grade 304 is the most commonly used stainless steel. Stainless steel grade 304N has better corrosion resistance than grade 302, and is mostly non-magnetic in nature; however when cold worked it acquires a slightly magnetic quality.

Standards ASTM A 213, ASME SA 213, ASTM A 249, ASME SA 249, ASTM A 688, ASME SA 688, ASTM A 789, ASME SA 789, ASTM B 163, ASME SB 163, ASTM B 167, ASME SB 167, ASTM B 668, ASME SB 668
Materials 304/L/H, 316/L/TI, 317/L, 321/H, 347/H, 310S, S31500, S31803,S32205, S32750, S32760, S32001, S32304, N06600, N06625,N08800, N08810, N08811, N08825, N08904, N04400,TI GR.1/GR.2


Outside Diameter BWG
22 20 18 16 14 12 10
Wall Thickcess mm
0.71 0.89 1.24 1.65 2.11 2.77 3.40
mm Inches Weight Kg/m
12.70 1/2 0.214 0.263 0.356 0.457 - - -
15.88 5/8 0.271 0.334 0.455 0.588 - - -
19.05 3/4 0.327 0.405 0.553 0.729 0.895 - -
25.40 1 0.440 0.546 0.750 0.981 1.234 1.574 -
31.75 11/4 0.554 0.688 0.947 1.244 1.574 2.014 -
38.10 11/2 0.667 0.832 1.144 1.514 1.904 2.454 -
44.50 13/4 - - 1.342 1.774 2.244 2.894 3.50
50.80 2 - - 1.549 2.034 2.574 3.334 4.03


304N Stainless Steel Pipe Chemical Composition

Element Content (%)
Chromium, Cr 18-20
Nickel, Ni 8-11
Manganese, Mn 2
Silicon, Si 1
Nitrogen, N 0.1-0.16
Carbon, C 0.08
Phosphorous, P 0.045
Sulfur, S 0.030
Iron, fe Balance


304N Stainless Steel Pipe Applications

Grade 304N stainless steel is widely used in the following applications:

  • Valves
  • Oil well filter screens
  • Cooling coils
  • Pressure vessels
  • evaporators
  • Beer barrels
  • Chemical equipment
  • Dairy equipment,
  • Flexible metal hose
  • Nuclear vessels
  • Textile dyeing equipment
  • Food processing equipment
  • Hypodermic needles


Pressure Tubing

ASTM A249 / ASME SA249 (Welded Austenitic Steel Boiler Superheater and Heat Exchanger Tubes)

ASTM A269 / ASME SA269 (Seamless & Welded Austenitic Stainless Steel General Service Tubes)

ASTM A270 / ASME SA270 (Seamless & Welded Austenitic Stainless Steel Sanitary Tubing)

ASTM A213 / ASME SA213 (Seamless Ferritic and Austentic Alloy-Steel Boiler, Super heater and Heat-
Exchanger tubes)

ASTM A179 / ASME SA179 (Seamless Carbon & Carbon Alloy Heat-Exchanger tubes)


Feedwater Heater Tubing

ASTM A688 / ASME SA688 (Welded Stainless Steel Feedwater Heater Tubes, U-Bending Available)


Size Range:


OD 12.7-38MM


Bending radii from 1.5 X OD up to 1250MM. Minimum bending radii for OD′s over 28MM after agreement.


Leg length min. 1,000MM


Leg length max. 12,000MM 


Heat treatment for radii up to 1,000MM


Technical standards:


Other specifications or special requirements available upon request. Copies of common standard specifications are available on request.




After heat treatment all U-tubes are hydrotested.


Minimum holding time at the required pressure is 5 sec.


All tubes are dried and carefully cleaned after testing.


Measuring, cutting, deburring, cleaning:


U-bends are measured exactly in accordance with relevant standards, or to customer’s specification.


All tubes are cut to the specified leg lengths, ends are deburred and the tubes are internally cleaned with air.


Before packing, both ends are capped with plastic caps.




In strong, open or closed, wooden boxes depending on destination - max. 8,000 kg.


Ends of tubes protected by plastic caps.


Vertical separators for each radius.


Chloride free plastic separators between each row, every 2 meters.


Each bundle is covered with plastic.


Customers can provide a packing drawing.


Packing lists, covered with plastic, are placed on each wooden box for easy identification of order details – including exact list of radii and lengths inside.



Annealed TP304N ASME SA213 Cold Drawn U Bend Tubing 0

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

Contact Person: Will Ma

Tel: +86 13918539222

Send your inquiry directly to us (0 / 3000)