Sachiya Steel International is a well-known firm in manufacturing and trading ASTM B622 Seamless Pipe, which are almost never used above 300 Degree C. Although it has good high temperature oxidation resistance, our ASTM B622 Nickel-Cobalt Pipes suffers from embrittlement if held for even short times at temperatures more than 300 Degree C.
If embrittled, these ASME SB 622 Nickel-Cobalt Tubes can only be rectified by a full solution annealing treatment. Our ASTM B622 Nickel-Cobalt Seamless Pipes finds applications due to both excellent corrosion resistance and high strength. Solution treatment (annealing) – heat of these ASME SB 622 Nickel-Cobalt Seamless Tubes is up to 1020 Degree C – 1100 Degree C and cool rapidly.
Our ASTM B622 Nickel-Cobalt Alloy Pipes cannot be hardened by thermal treatment, but does work harden. Welding methods together with gas – arc welding, metal – arc welding, gas – metal – arc welding and submerged – arc welding are recommended on these ASME SB 622 Nickel-Cobalt Alloy Tubes.
Hot working on our ASTM B622 Nickel-Cobalt Alloy Seamless Pipes needs to be carried out by choosing proper temperatures. Typical temperatures of these ASME SB 622 Nickel-Cobalt Alloy Seamless Tubes for hot working are between the ranges of 648 Degree C – 1176 Degree C (1200 Degree F – 2150 Degree F). The alpha precipitate phase of these ASTM B622 Tubes as well presents risk of embrittlement in the range of 660 Degree F and 1020 Degree F (350 Degree C / 550 Degree C).
ASTM B622 Seamless Pipes and Tubes Specifications |
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| Size | : | 6.00 mm OD up to 914.4 mm OD |
| Thickness | : | 0.3mm – 50 mm, SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS |
| Length | : | Within 13500mm |
| Type | : | Seamless Pipes, Seamless Tubes |
| Grades | : | UNS N10276, UNS N06022, UNS N10665 , C22, C276 , B2, B3, X, C4, C2000 |
ASTM B622 Seamless Pipes & Tubes Application Industries
- Off-Shore Oil Drilling Companies
- Power Generation
- Petrochemicals
- Gas Processing
- Specialty Chemicals
- Pharmaceuticals
- Pharmaceutical Equipment
- Chemical Equipment
- Sea Water Equipment
- Heat Exchangers
- Condensers
- Pulp and Paper Industry
ASTM B622 Pipe and Tube Test Certificates
We at Sachiya Steel International provide Manufacturer TC (Test Certificate) in accordance to EN 10204/3.1B, Raw Materials Certificate, 100% Radiography Test Report, Third Party Inspection Report. We also provide Standard certificates like EN 10204 3.1 and additional requirement like. NACE MR 01075. FERRIT CONTENT as per norms if requested by clients.
• EN 10204/3.1B,
• Raw Materials Certificate
• 100% Radiography Test Report
• Third Party Inspection Report, etc