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.

304N Stainless Steel Pipe Chemical Composition

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.

Hydrotesting:

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.

Packing:

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.

Spezilla specialise in manufacturing high quality precision stainless steel tube and other corrosion resistant alloy tubes that are designed to industry and customer specifications. Our products are manufactured to the highest quality standards and are very competitively priced. Our mission is to provide customized, flawless, reliable, and affordable corrosion resistant steel tubes to the world.

Tube Type:            Welded, Welded & Drawn. Straight Length or Coils.

Tube Materials:      Austenitic:    304, 304L, 316L, 321, 316Ti, 317L, 904L, 254 SMO;

                                                   1.4301, 1.4307, 1.4401, 1.4404, 1.4541, 1.4571, 1.4539, 1.4547;

                              Duplex:         2205, 2507;  1.4462, 1.4410;  

                              Ferritic:         409, 439, 441, 444; 1.4512, 1.4510, 1.4509, 1.4521;

                              Nickel Alloy:  800, 800H, 800HT, 825, C276; 1.4876, 1.4958, 1.4959, 2.4858, 2.4819;

                              Titanium:       Gr.1, Gr.2;

Tube Size:              O.D. 4.00 - 38.10MM, W.T. 0.30 - 3.0MM.

Tube Finish:           As Welded, Bright Annealed, Annealed & Pickled, Polished, Custom Cutting.

Tube Standards:    ASTM A249, A268, A269, A270, A688, A789, B338;

                               EN 10217-7 TC1 & TC2, EN 10296-2, EN10357 etc.

Applications:          Heat Exchangers, Food & Beverage, Heating Elements, Automative, Tube Manipulation etc.

Spezilla appreciates the opportunity to help you with your questions about our operations, our products, our services or any other aspect of our business. We understand the demands of placing orders and the need for fast quotes, so we guarantee a response in 24 hours or less.