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ASME SB338 Round Welded Titanium Tubing For Condensers / Heat Exchangers

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ASME SB338 Round Welded Titanium Tubing For Condensers / Heat Exchangers

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Large Image :  ASME SB338 Round Welded Titanium Tubing For Condensers / Heat Exchangers

Product Details:
Place of Origin: CHINA
Brand Name: SPEZILLA
Certification: ISO9001:2008
Model Number: GR.7
Payment & Shipping Terms:
Minimum Order Quantity: Negotiation
Price: Negotiation
Packaging Details: WOODEN BOX
Delivery Time: 15 DAYS
Payment Terms: L/C, T/T
Supply Ability: 100 TONS PER MONTH
Detailed Product Description
Application: HEAT EXCHANGER Alloy No.: Ti GRADE 7
OD: 6.00MM - 114.30MM Tube Standard: ASME SB338
Inspection Certificate: EN10204 3.1 Manufacturing: SEAMLESS WELDED
High Light:

titanium tubing


titanium round tube

ASME SB338 Grade 7 Seamless Round Tube Titanium Pipe Welding for Condensers / Heat Exchangers




Titanium grade 7 is a corrosion resistant alpha titanium alloy with similar mechanical properties to the commercially pure grades. It has a small palladium addition to improve corrosion resistance, particularly in mineral acids and strong brines. It is used mildly reducing or fluctuating conditions. At room temperature it is an alpha alloy. It transforms to beta phase at 913°C, and the alpha phase returns on cooling 890°C.

Titanium is reactive, with a very high affinity for oxygen, which forms a skin of very stable and highly adherent oxide. The skin gives excellent corrosion resistance, despite the reactivity of the metal. The oxide layer forms spontaneously and on exposure to the atmosphere. However, when new parent metal is exposed to anhydrous conditions or in the absence of air, rapid corrosion may occur. Care should also be taken if titanium is to operate in contact with hydrogen, as hydrogen embrittlement from hydride formation can increase strength, with loss of ductility.


Grade 7 is mechanically and physically equivalent to Grade 2, except with the addition of the interstitial element palladium, making it an alloy. Grade 7 possesses excellent weldability and fabricality, and is the most corrosion resistance of all titanium alloys. In fact, it is most resistant to corrosion in reducing acids.

Grade 7 is used in chemical processes and production equipment components.


Titanium Grade 7 has physical and mechanical properties equivalent to CP3 titanium or Grade 2. It has excellent welding and fabrication properties and is extremely resistant to corrosion especially from reducing acids.


Excellent Weldability Titanium

Excellent Fabricability

Physical Properties Equivalent to CP Grade 2

Mechanical Properties Equivalent to CP Grade 2

Most Resistant to Corrosion in Reducing Acids


Chemical Analysis of Titanium Grade 7:


C 0.08 Max
N 0.03 Max
O 0.25Max
H 0.015Max
Pd 0.12 - 0.25
Ti Bal.
Fe 0.30 Max


Mechnical Property:


  0.2% Proof Stress Tensile Strength Elongation
MPa MPa %
Annealed 275-475 345 20


Titanium Grade 7 Specifications:


Extrusion ASME SB-363
Forgings ASME SB-381



Round Bar/Wire ASME SB-348
Sheet/Plate ASME SB-265




Comparative Corrosion Rates:


Corrosive Medium
Corrosion Rate
Grade 7 Grade 2
Aluminium Chloride
10 100 <0.025 <0.025
  25 100 0.025 50
Chlorine (wet)
Room <0.025 <0.025
Citric Acid
50 Boiling <0.025 0.4
Hydrochloric Acid (HCI)
5 Boiling 0.18 >10
Hydrochloric Acid (N2 Saturated)
3 190 0.025 >28
  5 190 0.1 >28
  10 190 8.8 >28
  15 190 40
Hydrochloric Acid (O2 Saturated)
3 190 0.13 >28
  5 190 0.13 >28
  10 190 9.2 >28
Sodium Chloride
Brine 93 <0.025
  10 190 <0.025
+ Acidified pH1.2
23(a) Boiling nil
Sulphuric Acid
5 Boiling 0.5 48
Sulphuric Acid (N2 Saturated)
1 100 7
  1 190 0.13
  5 100 26.5
  5 190 0.13
  10 190 1.5
Formic Acid
50 Boiling 0.075 3.6
Oxalic Acid
1 Boiling 1.13 45
Phosphoric Acid
50 70 1.8 10
  10 Boiling 3.2 11



ASME SB338 Round Welded Titanium Tubing For Condensers / Heat Exchangers 0



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Contact Person: Will Ma

Tel: +86 13918539222

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