ASME SB338 UNS R50400 Seamless Titanium Tubes for Condensers and Heat Exchangers
YUHONG GROUP specializes in manufacturing high-performance titanium products for critical industrial applications. With over 30 years of expertise in non-ferrous metal processing, our ASME SB338 UNS R50400 (Gr.2) Seamless Titanium Tubes deliver exceptional corrosion resistance and reliability in demanding heat transfer systems.
Chemical Composition of ASME SB338 UNS R50400 (Grade 2/2H) Titanium
| Element | Requirement (wt%) | Notes |
| Carbon (C) | ≤0.08 | Controlled for interstitial purity |
| Oxygen (O) | 0.25 (range) | Primary strength enhancer |
| Nitrogen (N) | ≤0.03 | Prevents embrittlement |
| Hydrogen (H) | ≤0.015 | Avoids hydride formation |
| Iron (Fe) | ≤0.30 | Main impurity element |
| Other Elements (each) | ≤0.10 | Includes Cr, Mo, Ni, etc. |
| Other Elements (total) | ≤0.40 | Sum of all residual elements |
Mechanical Properties of ASME SB338 UNS R50400 (Grade 2/2H) Titanium
| Property | Grade 2 Requirement | Grade 2H Requirement | Notes |
| Tensile Strength, min | 50 ksi (345 MPa) | 58 ksi (400 MPa) | Grade 2H offers higher strength |
| Yield Strength, min | 40 ksi (275 MPa) | 40 ksi (275 MPa) | Same yield strength for both |
| Yield Strength, max | 65 ksi (450 MPa) | 65 ksi (450 MPa) | Upper limit for both grades |
| Elongation, min | 20% | 20% | Measured in 2-inch gauge length |
Equivalent Materials for ASME SB338 UNS R50400 (Grade 2/2H) Titanium
| Standard System | Equivalent Grade | Standard Number | Key Differences |
| ISO | Grade 2 | ISO 5832-2 | Slightly tighter impurity controls |
| DIN | 3.7035 | DIN 17860 | Similar chemistry, different numbering |
| JIS | Class 2 | JIS H 4600 | Matching mechanical properties |
| ASTM | Gr.2 | ASTM B338 | Exact same standard |
| EN | NA | EN 10204-3.1 | Certification standard only |
| GB | TA2 | GB/T 3625 | Chinese national standard equivalent |
| AMS | 4902 | AMS 4902 | Aerospace material specification |
ASME SB338 UNS R50400 (Grade 2/2H) Titanium delivers exceptional value through three core advantages
(1) Excellent corrosion resistance in chloride environments, including seawater and bleach, surpasses stainless steels by eliminating pitting and crevice corrosion.
(2) Strong strength-to-weight ratio with a tensile strength of 345-400 MPa at only 4.5 g/cm³, enabling lightweight heat exchanger designs that cut structural support costs.
(3) Biocompatible and non-toxic, meeting ASTM F67 medical standards, suitable for both pharmaceutical and marine applications. With over 30 years of titanium manufacturing expertise, YUHONG ensures full traceability from sponge to finished tube, including EN 10204 3.1 certification and custom sizes.
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