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

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