ASTM B670 Inconel 718 pickled alloy tubing
ASTM B670 Inconel 718 is a precipitation-hardening nickel-chromium alloy widely used due to its high strength, corrosion resistance, and excellent high and low temperature performance. "Pickling" refers to a surface treatment performed after heat treatment to remove oxide scale. This material is suitable for applications requiring superior mechanical properties under extreme conditions, such as aerospace, gas turbines, and cryogenic technology.
What are the three main characteristics of Inconel 718?
Inconel 718 is a precipitation-hardening nickel-based alloy designed to exhibit extremely high yield strength, tensile strength, and creep rupture strength at temperatures up to 1300℃F.
Spec Chart of Inconel 718 Pipe
| ASTM B670 / ASME SB670 | |
| Inconel 718 Seamless Pipe Size | 4 to 219mm W. T.: 0.5 to 20mm |
| Inconel alloy 718 Welded Pipe Size | 5.0 - 1219.2 mm |
| Nickel Alloy 718 EFW Pipe size | 5.0 - 1219.2 mm |
| 10 Swg., 12 Swg., 14 Swg., 16 Swg., 18 Swg., 20 Swg. | |
| Inconel 718 din 2.4668 Pipe Schedule | SCH5, SCH10, SCH10S, SCH20, SCH30, SCH40, SCH40S, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS |
| Inconel 718 Pipe Length | |
| Polished, AP (Annealed & Pickled), BA (Bright & Annealed), MF, NO.1, NO.4, 2B, BA, HL, 8K, Mirror finish, etc | |
| Inconel 718 Pipe are available in form of Round, Square, Hollow, Rectangular, Hydraulic, Coiled, Straight Pipes, "U" Shape, Pan Cake Coils etc. | |
| Type of 718 Inconel Pipe | Seamless / ERW/ EFW / Welded / Fabricated / CDW / DOM / CEW Inconel 718 Pipe |
| Inconel 718 Pipe End |
Mechanical Properties Chart of Inconel 718 Pipe
| Yield Strength (0.2%Offset) | |||||
| 718 | 8.14 g/cm3 | 1400 ℃ (2550 ℃F) | Psi – 80,000 , MPa – 550 | Psi – 32,000 , MPa – 220 | 30 % |
ASTM B670 UNS N07718 Pipe Chemical Composition Table
| C | S | ||||||||
| 718 | min. | – | – | – | – | 17.0 | 0.2 | 50.0 | |
| max. | 0.08 | 0.35 | 0.35 | 0.01 | 21.0 | 0.8 | 55.0 | ||
Alloy 718 Tube Physical Properties
|
|
|
|
|
0.296 lb/in3 (8.192 g/cm3) |
0.297 lb/in3 (8.22 g/cm3) |
|
|
8.19 |
8.22 |
|
|
2500-2600℃F |
1370-1430℃ |
Surface Treatment: "Acid pickling" refers to a chemical surface treatment method that typically uses an acid bath to remove surface oxide scale.
Improved Surface Quality: This process yields a clean, oxide-scale-free surface, which is crucial for many high-performance applications with extremely high surface integrity requirements.
✅ Large stock of Inconel series alloy tubes/bars/plates/fittings available for fast shipping.
✅ Factory direct sales, highly competitive prices, excellent value for money.
✅ Comprehensive quality assurance: Material Testing Certificate (MTC), chemical composition certificate, and mechanical property certificate.
✅ Value-added services: slitting, cutting, polishing, surface treatment.
✅ Worldwide shipping, secure and reliable packaging, and provision of export-required documents.
Gnee Steel is a supplier of Inconel 600 and Inconel 725, offering a wide range of products including: seamless pipe (sizes: 4-219 mm; thickness: 0.5-20 mm); welded pipe (sizes: 5.0-1219.2 mm; thickness: 0.5-20 mm); plates (thickness 0.1 to 100 mm; width 10-2500 mm); strips; alloy round bars (diameter 3-800 mm); flat bars (thickness 2-100 mm; width 10-500 mm); hexagonal bars (size 2-100 mm); wire rods; and extruded profiles. We collaborate with steel mills to provide customers with 600/725 alloys, whose products meet or exceed numerous leading industry standards, including ASTM, ASME, SAE, AMS, ISO, DIN, EN, and BS standards.
Gnee Steel stocks and sells Inconel 600 and Inconel 725, pipes, tubes, plates, strips, round bars, flat bars, forged billets, hexagonal steel, wire rods, and extruded profiles. Please feel free to contact us at ss@gneesteel.com for a quote.
