TOBO STEEL GROUP CHINA
| Packaging Details | Plywood case with waterproof paper, steel strip and sea worthy export packing |
| Service Temperature | minus 196 C |
| Payment Terms | T/T,L/C at sight,D/P at sight |
| Application | LNG Receiving Terminal and Cryogenic Pipeline |
| Schedule | SCH40S |
| Standard | ASME B16.9, ASTM A403 |
| Material Grade | 254SMO, UNS S31254, Inconel 625 optional |
| End Connection | Beveled End |
| Wall Thickness | 7.11 mm SCH40S |
| Impact Test | Charpy V Notch at -196 C |
| Delivery Time | 7-10 days for stock sizes, 20-25 days for production |
| product name | Cryogenic LNG Nickel Alloy Concentric Reducer |
| Supply Ability | 800 Tons per Month |
| Size | 6 Inch x 4 Inch |
| Certification | ISO 9001:2015, PED 2014/68/EU, EN 10204 3.1 |
| Model Number | NAR-RD-254SMO-6X4 |
| Place of Origin | Cangzhou, Hebei, China |
| Brand Name | HENGYU |
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Product Specification
| Packaging Details | Plywood case with waterproof paper, steel strip and sea worthy export packing | Service Temperature | minus 196 C |
| Payment Terms | T/T,L/C at sight,D/P at sight | Application | LNG Receiving Terminal and Cryogenic Pipeline |
| Schedule | SCH40S | Standard | ASME B16.9, ASTM A403 |
| Material Grade | 254SMO, UNS S31254, Inconel 625 optional | End Connection | Beveled End |
| Wall Thickness | 7.11 mm SCH40S | Impact Test | Charpy V Notch at -196 C |
| Delivery Time | 7-10 days for stock sizes, 20-25 days for production | product name | Cryogenic LNG Nickel Alloy Concentric Reducer |
| Supply Ability | 800 Tons per Month | Size | 6 Inch x 4 Inch |
| Certification | ISO 9001:2015, PED 2014/68/EU, EN 10204 3.1 | Model Number | NAR-RD-254SMO-6X4 |
| Place of Origin | Cangzhou, Hebei, China | Brand Name | HENGYU |
| High Light | Cryogenic LNG Reducer ，254SMO Nickel Alloy Reducer ，6x4 Concentric Pipe Reducer | ||
LNG piping runs at minus 162 °C, and the fittings must remain tough at that temperature rather than turning brittle. This concentric reducer is produced in 254SMO (UNS S31254), a high-molybdenum austenitic stainless steel with a PREN above 43, and it is impact tested at minus 196 °C to cover the full cryogenic range, including loading line boil-off conditions.
Cryogenic service also punishes anything with a sharp geometry change, so the size head is formed with a generous transition radius and the bore is ground smooth after pickling to remove the laps that would act as stress raisers. Where the specification calls for a nickel-base alloy instead, the same concentric reducer is produced in Inconel 625 in 6 x 4 inch for the highest chloride and fatigue duty.
| Material | 254SMO, UNS S31254, 6% Mo austenitic |
|---|---|
| Alternative | Inconel 625, UNS N06625 on request |
| PREN | 43 or above |
| Size | 6 Inch x 4 Inch, DN150 x DN100 |
| Schedule | SCH40S, SCH10S available |
| Service Temperature | minus 196 °C to 400 °C |
| Impact Test | Charpy V-notch at −196 °C, 40 J minimum |
| Standard | ASME B16.9, ASTM A403 |
| Ends | Beveled end, bore ground and pickled |
304L becomes marginal where LNG is combined with coastal chlorides and thermal cycling. 254SMO with 6 percent molybdenum keeps both cryogenic toughness and pitting resistance, so the concentric reducer covers the whole duty.
Yes. The 6 x 4 inch concentric reducer can be produced in Inconel 625 when the project specifies a nickel-base alloy, with longer lead time and higher cost.
A minimum average of 40 J on three specimens, with no single value below 28 J, tested from the same heat as the delivered fitting.
After forming and pickling, the inside surface of the concentric reducer is ground to remove laps and heat tint, then re-passivated so the roughness and the passive film are both controlled.
Yes. Witnessing of the impact test and the dimensional inspection by a nominated inspection body can be arranged when the LNG concentric reducer order is placed.
Send the design temperature, medium and chloride level, and we will confirm whether 254SMO, Inconel 625 or a super duplex grade is the right choice for your cryogenic concentric reducer.
Company Details
Business Type:
Manufacturer,Agent,Importer,Exporter,Trading Company,Seller
Year Established:
1998
Total Annual:
100000-100000000
Employee Number:
200~300
Ecer Certification：
Verified Supplier
TOBO GROUP sales head offce in Shanghai. We are one of the Professional manufacturers Exporter Pipeline products in China .Our company was established in 1998, the plant covers 550, 000 square meters and a construction area ... TOBO GROUP sales head offce in Shanghai. We are one of the Professional manufacturers Exporter Pipeline products in China .Our company was established in 1998, the plant covers 550, 000 square meters and a construction area ...
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