ASTM B676: Standard Specification for UNS N08367 Welded Tube
ASTM B676 Specification & Scope
The ASTM B676 specification covers premium UNS N08367 welded tube configurations optimized for rigorous industrial applications. Meanwhile, the matching ASME SB676 specification regulates the strict outside diameter and nominal wall requirements for pressure vessel and boiler engineering compliance.
Outside Diameter (OD) Range: 1/8 to 5 inches (3.2 mm to 127 mm)
Wall Thickness Range: 0.015 to 0.320 inches (0.38 mm to 8.13 mm)
Whether your project requires custom lengths or standard structural dimensions, our manufacturing lines deliver precise tolerances matching strict international standards.
ASME SB 676 UNS N08367 Welded Tubes Tests
ASTM B676 al6xn tubes shall be subjected to the following tests: hydrostatic test, pneumatic test, eddy current test, ultrasonic test, undergo stretching, flattening, flanging, reverse bending, and non-destructive testing requirements.
AL-6XN Stainless Steel Material Chemical Composition
The al6xn material should consist of carbon, manganese, silicon, phosphorus, sulfur, chromium, nickel, molybdenum, nitrogen, iron and copper.
| Grade | UNS | C≤ | Mn | P≤ | S≤ | Si≤ | Cr | Mo | Ni | Cu |
| AL-6XN | N08367 | 0.03 | 2 | 0.04 | 0.03 | 1 | 20.0-22.0 | 6.0-7.0 | 23.5-25.5 | 0.75 |
ASTM B676 UNS N08367 Mechanical Properties
| Type | Condition(Temper) | Tensile Strength, min, ksi(MPa) | Yield Strength, (0.2% Offset), min, ksi(MPa) | Elongation in 2 in. or 50mm(or 4D), min, % |
| N08367 | Solution treated | 95(655) | 45(310) | 30 |
Rigorous Quality Assurance & Testing Standards
As a verified UNS N08367 welded tube supplier, HT PIPE ensures that every industrial tube undergoes comprehensive testing protocols before shipping. Our products are fully tested to satisfy both ASTM B676 and ASME SB676 compliance criteria:
- Hydrostatic & Pneumatic Testing: Validates pressure integrity for fluid and gas transport.
- Non-Destructive Testing (NDT): Includes complete Eddy Current and Ultrasonic testing to identify internal flaws.
- Mechanical Deformation Profiles: Extensively tested via stretching, flattening, flanging, and reverse bending evaluations.
- Documentation: All shipments are accompanied by certified EN 10204 3.1 Mill Test Certificates (MTC).
Primary Industrial Applications
Due to its robust resistance to pitting in seawater and acidic chemicals, our AL-6XN super austenitic stainless steel tubing is widely deployed across critical sectors:
- Marine engineering and seawater desalination systems
- Flue gas desulfurization (FGD) scrubbers in power generation
- Chemical processing reactors and heat exchangers
- Offshore oil and gas production platforms
Why Choose HT PIPE for Your UNS N08367 Requirements?
HT PIPE brings decades of technical expertise to international trade operations, coordinating seamless order fulfillment, documentation, and worldwide export logistics. We offer flexible product customizations, highly competitive bulk pricing, and secure industrial packaging for international transit.
Looking for a reliable ASTM B676 UNS N08367 welded tube manufacturer? Contact our technical sales team today at market@htpipe.com or send an inquiry below to receive a fast, comprehensive quote within 24 hours!
