Nickel-containing alloys including several grades of Hastelloys could be manufactured in a seamless manner under specification ASTM B622. the preference for using ASTM B622 Seamless Pipe and Tube is because their pressure bearing capacity is almost 20% higher than welded ones. The absence of a longitudinal weld seam on the surface of the ASTM B622 UNS N10276 Seamless Tube eliminates their vulnerability towards intergranular corrosion. In instances where the pressure exceeds the tolerances, most often the ASTM B622 UNS N10276 Nickel Alloy Seamless Pipe will outperform its welded counterpart.
However, it is not only the construction that makes seamless pipes better but also their chemistry. For instance, if a pipe is to be welded, the content of carbon is usually minimized. But in the case of the ASTM B622 Hastelloy Seamless Pipe Tube, the content of carbon is usual, or in comparison to a welded product higher. An increase in the content of carbon in the astm b622 c276 Seamless pipe ensures better heat-resisting properties, and the mechanical properties are also better.
Most hastelloys tend to exhibit a higher form of resistance to various types of corrosion. In particular, the astm b622 uns n10665 tube makes a good fit in the chemical processing industry, because they are less likely to undergo a rapid oxidation process. And because the chemistry of astm b622 uns n06022 pipe contains elements such as molybdenum and chromium in its alloys, many buyers regard the metal as the toughest one. Another area, where the Ni SB 622 N06022 Pipe displays a consistent resistance is chemically inert areas. Like most ASTM specified products, the ASTM B622 Tubing is required to undergo tests such as tension test, hydrostatic test, in addition to some forms of nondestructive electric tests.
Standard | ASTM, ASME, JIS, AISI, AMS, EN, SAE, DIN, NF, TOCT, DS, DTD, GB |
---|---|
Size | 4 to 219mm W. T.: 0.5 to 20mm |
Swg & Bwg | 10 Swg., 12 Swg., 14 Swg., 16 Swg., 18 Swg., 20 Swg. |
Schedule | SCH5, SCH10, SCH10S, SCH20, SCH30, SCH40, SCH40S, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS |
Length | Single Random, Double Random, Standard & Cut length Pipe |
Finish | Polished, AP (Annealed & Pickled), BA (Bright & Annealed), MF, NO.1, NO.4, 2B, BA, HL, 8K, Mirror finish, etc |
Form | Round, Square, Hollow, Rectangular, Hydraulic, Coiled, Straight Pipes, “U” Shape, Pan Cake Coils etc. |
Type | Seamless / ERW/ EFW / Welded / Fabricated / CDW / DOM / CEW |
End | Plain End, Beveled End, Treaded Pipe, Screwed ends |
Country | Products |
---|---|
Dubai, Malaysia, Netherlands, Russia | 1/2 Inch ASTM B622 Hastelloy C276 Pipe Sch.80 |
Singapore, Malaysia, Philippines, Canada | 1 inch NB sch 80, ASME SB 622Seamless Alloy C276 Pipes |
China, Colombia, Sweden, Malaysia | 2-1/2" SCH 10S ASTM B622 Hastelloy C276 Pipes |
Singapore, Italy, Chile, Iran | B622 UNS N10276 SCH-40 Pipes |
Malaysia, South Korea, Singapore, NY 12203 (USA) | SCH 10 Pipe ASTM B622 N10276 |
Elements | Chemical Composition of Grades | ||
---|---|---|---|
Hastelloy B-2 UNS N10665) | Hastelloy C-22 (UNS N06022) | Hastelloy C-276 (UNS N10276) | |
Nickel | Remainder | Remainder | Remainder |
Chromium | 1.0 max | 20.0 to 22.0 | 14.5 to 16.5 |
Molybdenum | 26.0 to 30.0 | 12.5 to 14.5 | 15.0 to 17.0 |
Iron | 2.0 max | 2.0 to 6.0 | 4.0 to 7.0 |
Tungsten | - | 2.5 to 3.5 | 3.0 to 4.5 |
Carbon | 0.2 max | 0.015 max | 0.010 max |
Silicon, max | 0.10 | 0.08 | 0.08 |
Cobalt | 1.0 max | 0.2 max | 2.5 max |
Manganese | 1.0 max | 0.50 max | 1.0 max |
Vanadium | - | 0.35 max | 0.35 max |
Phosphorous, max | 0.04 | 0.02 | 0.04 |
Sulfur, max | 0.03 | 0.02 | 0.03 |
Grade | Tensile Strength, min, psi (MPa) | Elongation 2inches or 50.8mm or 4D min, % | Yield Strength (0.2% offset), min, ksi (MPa) |
---|---|---|---|
Hastelloy B-2 UNS N10665) | 110 (760) | 40 | 51 (350) |
Hastelloy C-22 (UNS N06022) | 100 (690) | 45 | 45 (310) |
Hastelloy C-276 (UNS N10276) | 100 (690) | 40 | 41 (283) |
NB Sizes | Sch 5 | Sch 10 | Sch 40 | Sch 80 | Sch 160 |
---|---|---|---|---|---|
ASTM B622 Hastelloy Seamless Pipe 1/8″ | ✔ | ✔ | ✔ | ✔ | |
ASTM B622 Hastelloy Seamless Pipe 1/4″ | ✔ | ✔ | ✔ | ✔ | |
ASTM B622 Hastelloy Seamless Pipe 3/8″ | ✔ | ✔ | ✔ | ✔ | |
ASTM B622 Hastelloy Seamless Pipe 1/2″ | ✔ | ✔ | ✔ | ✔ | ✔ |
ASTM B622 Hastelloy Seamless Pipe 3/4″ | ✔ | ✔ | ✔ | ✔ | ✔ |
ASTM B622 Hastelloy Seamless Pipe 1″ | ✔ | ✔ | ✔ | ✔ | ✔ |
ASTM B622 Hastelloy Seamless Pipe 1 1/4″ | ✔ | ✔ | ✔ | ✔ | ✔ |
ASTM B622 Hastelloy Seamless Pipe 1 1/2″ | ✔ | ✔ | ✔ | ✔ | ✔ |
ASTM B622 Hastelloy Seamless Pipe 2″ | ✔ | ✔ | ✔ | ✔ | ✔ |
ASTM B622 Hastelloy Seamless Pipe 2 1/2″ | ✔ | ✔ | ✔ | ✔ | ✔ |
ASTM B622 Hastelloy Seamless Pipe 3″ | ✔ | ✔ | ✔ | ✔ | ✔ |
ASTM B622 Hastelloy Seamless Pipe 3″ | ✔ | ✔ | ✔ | ✔ | ✔ |