ASTM B338 Gr. 2 / UNS R50400 / 3.7034 Titanium Tubes for Condenser and Heat Exchanger
Sep 09, 2025 ASTM-B338-Titanium.pdf
Products Description
Grade and Standard Equivalents
Domestic Grade: TA2 (Standard: GB/T 3620.1-2016)
International Grade: Corresponds to ASTM Grade 2 (UNS R50400), classified as commercially pure titanium
Chemical Composition and Characteristics
Main Composition:
Titanium (Ti) content ≥ 99.5%, total impurities ≤ 0.5%
Key impurity limits: Iron (Fe) ≤ 0.20%, Oxygen (O) ≤ 0.18%, Carbon (C) ≤ 0.08%
Material Characteristics:
High purity design provides excellent cold workability and corrosion resistance
Moderate oxygen content enhances strength (tensile strength can exceed 800 MPa)
Core Performance Indicators
Mechanical Properties:
Tensile strength: ≥ 480 MPa, Yield strength: ≥ 345 MPa (annealed condition)
Elongation: ≥ 18%, Reduction of area: ≥ 30%
Hardness: HV 150–200, Elastic modulus: 105–110 GPa
Environmental Resistance:
Corrosion resistance: Resists seawater, chloride ions, salt spray, and weak acids (suitable for chemical and marine environments)
Biocompatibility: Complies with ASTM F67 standard, suitable for implant applications
Physical Properties:
Density: 4.51 g/cm³ (significant lightweight advantage)
Low-temperature toughness: Applicable down to -253°C, suitable for extreme environments such as liquid hydrogen storage tanks
Typical Application Fields
Aerospace: Fuel pipelines, non-load-bearing structural components (leveraging lightweight and cryogenic properties)
Marine Engineering: Seawater desalination equipment, deep-sea detector housings (resistant to chloride ion corrosion)
Biomedical: Orthopedic implants (bone screws, dental implants)
Chemical and Energy Industries: Heat exchangers, acid-resistant pumps and valves (for sulfuric acid and hydrochloric acid media)
Processing and Treatment Guidelines
Cold Forming: Supports deep drawing and cold bending processes; requires step annealing (600–700°C) to reduce cracking risk
Welding Process: Requires argon gas protection (TIG/MIG); post-weld annealing to relieve stress
Surface Treatment: High-polishing techniques can achieve mirror finishes, meeting medical implant requirements
Quality Control and Certification
Dual certification: ISO 5832-2 (medical) and ASTM B348 (industrial)
Third-party testing must verify impurity content (e.g., hydrogen ≤ 0.015%) and consistency of mechanical properties
Titanium product forms available from GNEE
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Material
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Pure titanium and Titanium alloy
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Titanium Grade
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Grade 1-Unalloyed titanium
Grade 2-Unalloyed titanium
Grade 3-Unalloyed titanium
Grade 7-Unalloyed titanium plus 0.12 to 0.25 %palladium
Grade 9-Titanium alloy (3 % aluminum, 2.5 % vanadium)
Grade 12-Titanium alloy (0.3 % molybdenum, 0.8 % nickel),
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Standard
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ASTM B338/ASME SB338, ASTM B337/ASME SB337, ASTM B861/ASME SB861, ASTM B862/ASME SB862,AMS4911,AMS4928
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Shape
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Round Square Rectangle
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Type
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Seamless/Welded
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Seamless titanium tube: Titanium sponge-Compacting electrodes-melting-Forge-Bar billets-Extruding-Rolled-Straightening-Seamless tube
Welded titanium tube: Titanium sponge-Compacting electrodes-melting-Forge-Plate billets-Hot rolled-Cold rolled-Titanium scrap-Welded-Welded tube |
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Surface
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Polishing, picking, acid washed, black oxide
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Application
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1) General service industries (petroleum, food, chemical, paper, fertilizer, fabric, aviation and nuclear
2) Fluid, gas and oil transport
3) Pressure and heat transmission
4) Construction and ornament
5) Boiler heat exchangers
6) Motorbycle and bike
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Material Milling Certificate
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According to. EN 10204.3.1
Including Chemical composition and Mechanical property |
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Grade |
Gr1, Gr2, Gr3,Gr4,Gr5, Gr7, Gr6,Gr9, Gr11, Gr12 ,Gr16, Gr17,Gr25 |
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Size |
All sizes can be customized |
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Application |
Metallurgy, electronics, machinery, medical treatment, chemical industry, petroleum, medical treatment, aerospace |
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Feature |
High corrosion resistance, low density, good thermal stability |
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Technology |
Hot Forged, Hot Rolled, Cold Rolled, Annealing, Pickling |
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Surface |
Bright, Polished, Pickling, Acid cleaning, Sandblasting |
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Packing |
Export Standard Woodcase |
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Delivery time |
10-25days according to the quantity and process of the product |
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Quality and test |
Hardness test, Bending test, Hydrostatic etc. |
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Grade |
GR1,GR2,GR3,GR5,GR6,GR7,GR9,GR11,GR12, etc. |
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Standard |
ASTM B265,ASTM F136,ASTM F67,AMS4928 |
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Size |
0.5-5.0mm x 1000mm x 2000-3500mm (Thickness x Width x Length) |
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Application |
Metallurgy, electronics, machinery, medical treatment, chemical industry, petroleum, medical treatment, aerospace |
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Supply status |
M (Y/ R/ ST) |
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Feature |
High corrosion resistance, low density, good thermal stability |
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Technics |
Hot Forged, Hot Rolled, Cold Rolled, Annealing, Pickling |
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Surface |
Bright, Polished, Pickling, Acid cleaning, Sandblasting |
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Packing |
Export Standard Woodcase |
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Payment terms |
T/T, L/C, D/A, D/P, Escrow, Western Union, PayPal |
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Certificate |
ISO 9001:2008; The third test report; TÜV Rheinland; |
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Delivery time |
7-15days according to the quantity and process of the product |
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Quality and test |
Hardness test, Bending test, Hydrostatic etc. |
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Material |
Pure titanium and Titanium alloy |
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Titanium Grade |
GR1/GR2/GR3/Gr4/GR5/GR7/GR9/GR12/Gr5Eli/Gr23
ERTi-1/ERTi-2/ERTi-3/ERTi-4/ERTi-5Eli/ERTi-7/ERTi-9/ERTi-11/ERTi-12 Ti15333/Nitinol Alloy |
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Standard |
AWS A5.16/ASTM B863/ASME SB863, ASTMF67, ASTM F136, ISO-5832-2(3) etc |
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Shape |
Titanium Coil Wire/Titanium Spool Wire/Titanium Straight Wire |
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Wire Gauge |
Dia(0.06--6) *L |
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Process |
Bar billets-hot rolling-drawing-annealing-strength-pickling |
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Surface |
Polishing, picking, acid washed, black oxide |
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Main Technique |
Hot Forged; Hot Rolled; Cold drawn; Straighten etc |
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Material Milling Certificate |
According to. EN 10204.3.1 |
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Application |
Welding, Industry, Medical, Aerospace, Electronic etc |
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Material Available |
Aluminum, Stainless Steel, Carbon Steel, Brass, Bronze, Copper, Titanium and etc |
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Surface Treatment Available |
Anodized, Nickel Plated, Zinc Plated, Chrome Plated, Passivation, Electrophoresis, Electropolishing, Painting, Powder Coated, etc |
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Certificate &Standard |
ISO9001 certified factory with good quality control and all of our products are 100% inspected before delivery. |
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Equipments |
Over 28 CNC Milling Machines (3,4, 5 Axis) & 22 CNC Turning machines can support your large order demand. |
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Design |
OEM & ODM are welcome, and also we have a R&D team and can help your design and develop your products |
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Application |
Different kinds of cars, machinery, home appliance, electronic products, electric appliance, stationery, computers, power |
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MOQ |
No quantity limitation |
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Samples |
Welcome you to request samples to test and check the quality. |
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Delivery & Shipping |
We can deliver to over 50 countries all over the world, shipping by DHL, FedEx, UPS, etc around 3 to 5 days |
GNEE is a specialized manufacturer and exporter of high-quality titanium products, including pipes, sheets, bars, wires, and fabricated parts.
We utilize advanced CNC machining, rolling, and welding equipment to ensure precision manufacturing. All products undergo strict chemical, mechanical, and non-destructive testing to guarantee compliance with international standards.
Our export-safe packaging includes wooden crates and waterproof wrapping to ensure secure delivery. If you have any needs, please feel free to contact us immediately：info@gneemetal.com
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