ASTM B516 Welded Inconel 600/601/690/693 Alloy Tube

  1. Welded Nickel-Chromium-Iron-Alloy Tube
  2. Grade: UNS N06699, UNS N06600, UNS N06601, UNS N06603, UNS N06025, UNS N06045, UNS N06690, and UNS N06693
  3. Outside Diameter (OD): 1/8″-5″ (3.18-127mm)
  4. Wall Thickness (WT): 0.38-12.7mm
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ASTM B516 Welded Nickel Alloy Tubes

Golden Sunbird Metals supplies ASTM B516 welded Inconel 600/601/690/693 alloy tube for high-temperature and corrosion-resistant service in demanding industrial environments. This welded nickel-chromium-iron alloy tube range includes UNS N06600, UNS N06601, UNS N06603, UNS N06025, UNS N06690, and UNS N06693, with an outside diameter of 1/8″ to 5″ (3.18–127 mm) and wall thickness from 0.38 to 12.7 mm. Manufactured by automatic welding and supplied in annealed condition, these tubes are widely used in boilers, heat exchangers, condensers, petrochemical systems, offshore oil and gas, seawater equipment, and other applications that require strong resistance to oxidation, general corrosion, and chloride stress corrosion cracking. With strict inspection options and consistent quality control, Golden Sunbird Metals delivers ASTM B516 welded alloy tube solutions designed for reliable performance, long service life, and global industrial project requirements.

Grade: UNS N06699, UNS N06600 (Inconel 600 Welded Tube), UNS N06601, UNS N06603, UNS N06025, UNS N06045, UNS N06690, and UNS N06693

Chemical Composition (wt. %) of ASTM B516 Welded Inconel 600/601/690/693 Alloy Tube

Element N06600 N06601 N06603 N06025 N06455 N06690 N06693 N06999
Nickel^A 72.0 min 58.0-63.0 Bal Bal 45.0 min 58.0 min Bal Bal
Chromium 14.0 min 21.0-25.0 24.0–26.0 24.0–26.0 26.0–29.0 27.0-31.0 27.0-31.0 26.0-30.0
Iron 17.0 max Bal^A 8.0–11.0 8.0–11.0 21.0–25.0 7.0-11.0 2.5-6.0 2.5 max
Manganese 1.0 max 1.0 max 0.15 max 0.15 max 1.0 max 0.5 max 1.0 max 0.50 max
Carbon 0.15 max 0.10 max 0.40 max 0.25 max 0.12 max 0.35 max 0.15 max 0.005-0.10
Copper 0.5 max 1.0 max 0.50 max 0.10 max 0.3 max 0.5 max 0.5 max 0.50 max
Silicon 0.5 max 0.5 max 0.50 max 0.50 max 2.5–3.0 0.5 max 0.5 max 0.50 max
Sulfur 0.015 max 0.015 max 0.010 max 0.010 max 0.010 max 0.015 max 0.01 max 0.01 max
Aluminum … 1.0-1.7 2.4-3.0 1.8-2.4 … … 2.5-4.0 1.9-3.0
Titanium … … 0.01–0.25 0.1–0.2 … … 1.0 max 0.60 max
Niobium … … … 0.01–0.10 … … 0.5-2.5 0.50 max
Phosphorus … … 0.020 max 0.02 max 0.02 max … … 0.02 max
Zirconium … … 0.01–0.40 0.01–0.10 … … … 0.10 max
Yttrium … … 0.01–0.15 0.05–0.12 … … … …
Cerium … … … … 0.03–0.09 … … …
Nitrogen … … … … … … … 0.05 max

Mechanical Properties of ASTM B516 Welded Inconel 600/601/690/693 Alloy Tube

Alloy Tensile Strength min, psi (MPa) Yield Strength 0.2% Offset, min, psi (MPa) Elongation in 2 in. or 50 mm, min, %
N06600 80000 (550) 35000 (240) 30
N06601 80000 (550) 30000 (205) 30
N06603 94000 (650) 43000 (300) 25
N06025 98000 (680) 39000 (270) 30

Features

  • ASTM B516 welded nickel-chromium-iron alloy tube for boiler, heat exchanger, condenser, and general corrosive or high-temperature service.
  • Available in UNS N06600, N06601, N06603, N06025, N06045, N06690, N06693, and N06699 under the ASTM B516 scope.
  • INCONEL 600 is a standard engineering alloy for corrosion and heat resistance, with good high-temperature strength and oxidation resistance.
  • INCONEL 601 is designed for strong oxidation resistance and high-temperature corrosion resistance, with broad use in thermal processing and chemical processing.
  • INCONEL 690 offers excellent resistance to many corrosive aqueous media and high-temperature atmospheres, and is highly resistant to stress-corrosion cracking in nuclear steam-generator environments.
  • INCONEL 693 provides outstanding resistance to metal dusting and other high-temperature corrosion mechanisms, especially in aggressive syngas and petrochemical environments.
  • Automatic welding, oxide removed, annealed delivery condition, with inspection options such as chemical analysis, tensile test, flattening test, hydrostatic test, and NDE.

Technical Specifications

Specification Value
Standard ASTM B516 Welded Nickel-Chromium-Aluminum Alloy (UNS N06699) and Nickel-Chromium-Iron Alloy (UNS N06600 (Inconel 600), UNS N06601 (Inconel 601), UNS N06603, UNS N06025, UNS N06045, UNS N06690, and UNS N06693) Tubes
Grade UNS N06600 (Inconel 600, Alloy 600), N06601 (Inconel 601, Alloy 601), N06603, N06025 (Alloy 602CA), N06045, UNS N06690 (Inconel 690, EN 2.4642), UNS N06693 (Inconel 693), and UNS N06699 (EN 2.4842, NiCr30Al, Alloy 699XA)
Manufacturing Process Automatic welding
Seam Type Welded
Tube Size Outside Diameter (OD): 1/8″-5″ (3.18-127mm), Wall Thickness (WT): 0.38-12.7mm
Length 6000-13500mm
Delivery Condition Annealed
Inspection Certificate EN 10204 Type 3.1 (Mill Test Certificate), EN 10204 Type 3.2 (Witness Testing or 3rd Party Inspection)
 Test Chemical analysis, Tensile test, Flattening test, Expansion test, Hydrostatic test, Nondestructive testing (NDE Test), Intergranular corrosion test, Metallographic examination

Applications

  • Boiler tubes, heat exchangers, and condensers in corrosive or elevated-temperature service.
    Chemical processing systems, including process heaters, reactors, evaporators, and transfer piping.
  • Heat-treating and thermal-processing equipment such as radiant tubes, retorts, muffles, baskets, trays, fixtures, and burner components.
  • Nuclear service, especially high-purity water and nuclear steam-generator environments where stress-corrosion cracking resistance matters.
  • Sour-water stripping, ammonia reformers, pollution-control systems, and nitric-acid-related equipment.
  • Syngas production, reformer tubes, thermowells, thermocouple sheathing, waste-to-energy, biomass incineration, and other metal-dusting or sulfidation-prone environments.

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