Project Description

ASME SB338 Gr.12 U-bent tubes for Heat Exchangers

Titanium U-bent Tubes

Standard: ASTM B338 / ASME SB338

Material: Gr.1, Gr.2, Gr.12

Type: Seamless and Welded

Description Name: ASME SB338 Titanium Gr.2 Tubes, ASME SB338 Gr.2 Titanium tubes, ASTM B338 Titanium Gr.2 seamless tubes, Titanium Alloy Grade 2 seamless pipes, Titanium Alloy Gr.2 tubes, Gr.2 Titanium alloy tubing, Titanium U-bent tubes.

Diameter range: 12.7-25.4mm

Thickness range: 0.889-277mm

Shape: Round

Length: Single random length/ Double random length or as customer’s actual request

Max length 16000mm

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Titanium U-bent tubes ASME SB338 Chemical Composition:



Click to download the details of Titanium U-bent Tubes B338 Gr.12.

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Titanium U-bent tubes ASME SB338 Tensile Requirements

TypeTensile Testing
GR.1σb≥240Mp a138Mpa≤σ0.2≤310Mp aδ≥24%
GR.2σb≥345Mp a275Mp a≤σ0.2≤450Mp aδ≥20%
GR.3σb≥450Mp a380Mp a≤σ0.2≤550Mp aδ≥18%
GR.7σb≥345Mp a275Mp a≤σ0.2≤450Mp aδ≥20%
GR.9Aσb≥620Mp a483Mp a≤σ0.2δ≥15%
GR.9Bσb≥860Mp a725Mp a≤σ0.2δ≥10%
GR.12σb≥483Mp a345Mp a≤σ0.2δ≥18%
GR.16σb≥345Mp a275Mp a≤σ0.2≤450Mp aδ≥20%


Flattening Test

Tubing shall withstand, without cracking, flattening under a load applied gradually at room temperature until the distance between the load platens is not more than H in. H is calculated as SB338 standard.

Flaring Test

For tube 3 1/2 in. (88mm) in outside diameter and smaller, and 0.134 in. (3.4mm) in wall thickness and thinner, a section of tube approximately 4 in. (102mm) in length shall withstand being flared with a tool having a 60° included angle until the tube at the mouth of the flare has been expanded in accordance with table4 the flared end shall show no cracking or rupture visible to the unaided eye. Flaring tests on larger diameter tube or tubing outside the range of standard shall be as agreed upon between the manufacturer and the purchaser.

Hydrostatic or Nondestructive Testing

Welded tubing shall be tested using both a nondestructive electromagnetic test and an ultrasonic test as described in standard. Seamless and welded/cold worked tubing shall be tested using an ultrasonic test as described in standard.

Welded or seamless tubing shall be tested with a hydrostatic or pneumatic test as described in standard. Other requirements details can check standard.

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Each length of tube 1/2 in. (13mm) in outside diameter and larger, manufactured in accordance with this specification, shall be legibly marked, either by stenciling, stamping, or rolling, with the manufacture’s private identifying mark, the ASTM designation, the tube class, the grade, and heat number. On smaller than 1/2 in. outside diameter tubing that is bundled, the same information may be legibly stamped on a metal tag securely attached to each bundle.

Titanium U-Bent tubes

Titanium U bend tubes GR12

Titanium U bend tubes GR12

Titanium U-bent tubes Packaging

Packed in ply wooden box wrapped in plastic, and suitably protected for sea-worthily delivery or as requested.

Titanium Tubes ASME SB338 GR.2 Packaging by Wooden Box

Titanium Tubes ASME SB338 GR.2 Packaging by Wooden Box

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