ASME SA213 Seamless Nickel Alloy Pipe ss heat exchanger Bright Annealing Smooth Surface

Spezilla’s dedicated U-Bend production facility incorporates an environmentally friendly bright annealing process. Our low oxidation, acid-free process complies with ASTM/ASME 688 and 803 Feedwater Heater specifications.

Dimensional tolerances U-tubes acc. to TEMA R.C.B.

Length of straight part -0/+5 mm

Flattening (also called “ovality”) at the bend shall not exceed 10% of the nominal tube outside diameter.

Wall thickness in bending part acc. to TEMA RCB 2.31 Minimum tube wall thickness in the bend part (T min)T(min) ≥ (SW × (2×R + D))/( 2× (R+D)where:

SW is smallest wall thickness D Nominal outside diameter R radius

Radius tolerance 1) for R 100 mm +/- 3 mm

2) for R ≥ 100 mm +/- 5 mm

Straightness tolerance max. 1,5 mm per 1 m

U-Tube ends: plain, vertically cut to the tube axis

Tube-bending line, installed at 2007, will allow to produce U-tubes as per such standards:

1. ASTM A688/A688M-08

2. ASTM A803/A803M

3. ASTM A556/A556M, ASME SA556

4. ASME SA-688

5. ASME SA213 ASTM A213

Initial Length

Maximum lengths of 27000mm can be supplied on request

Dimensions:

Tubes OD in mm can be bent upon agreement: 15,8 - 16,0 - 17,0 - 18,0 - 19,05 - 20,0 - 21,3 - 25,4 -26,7 - 31,8 -38,1

Bending radius:

Minimum: 1.5×OD

Maximum: 1500 mm

Advantages of Spezilla’s unique Direct-to-Bend manufacturing:

Repeatable and predictable tube quality

Improved ease of tube fit and heater assembly

Fast delivery

Increased efficiencies

Minimized in-process material handling

Lower than 5,000 psi residual

stress for SCC susceptible alloys

Spezilla’s U-Bend Tubing is used in Heat Exchanger applications in the following industries:

Power Generation

Chemical

Petrochemical

Food

ASME SA213/A213: Standard Specification for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Super heater and Stainless Steel Heat Exchanger Tubes.

ASTM A249 / A249M: Standard Specification for Welded Austenitic Steel Boiler, super heater Heat-Exchanger, and Condenser Tubes.

Other Standard: DIN 17456, DIN 17458, EN10216-5, GOST 9940-81, GOST 9941-81, JIS-G3463,

Material Grade:

Final Finishing

Solution Annealed & Pickled/Bright Annealed.

Type of Tubes:

U-bend

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.