ISO/TR 15608 Material Group 44: Nickel-molybdenum alloys (Ni-Mo) with Ni ≥ 45 % and Mo ≤ 32 %
The corrosion-resistant nickel-based alloys find extensive use in the chemical processing, pharmaceutical, oil & gas, petrochemical and pollution control industries in which highly corrosive environments are very common.
High molybdenum alloying
Molybdenum is a very important alloying element in high performance nickel-based alloys. Molybdenum also acts in conjunction with chromium to provide resistance to localized corrosion attack such as pitting and crevice corrosion. In the case of high temperature alloys, additions of molybdenum are often used to impart resistance to damage caused by high temperature creep.
These alloys fall into two basic classes:
- corrosion-resistant alloys (N10675, N10276)
- high temperature alloys (N10242)
The high temperature alloys can be further subdivided into two categories:- solid-solution strengthened
- age-hardenable (N10242)
Typical materials in group 44
| Name | Number | Standard | Product | Alloy | Remarks |
|---|---|---|---|---|---|
| NiMo30 – – – – – – | 2.4810 N10001 N10001 N10001 N10001 N10001 N10001 | – ASTM B-333 ASTM B-335 ASTM B-366 ASTM B-619 ASTM B-626 ASTM B-622 | – Plate Rod Fitting Welded pipe Welded tube Smls. pipe and tube | HASTELLOY® B alloy VDM® Alloy HB | EN 13445-10: PMA ASME BPVC ASME BPVC ASME BPVC ASME BPVC ASME BPVC ASME BPVC |
| – | N10003 N10003 N10003 | ASTM B-434 ASTM B-573 ASTM B-366 | Plate Rod Fitting | VDM® Alloy HN | ASME BPVC ASME BPVC ASME BPVC |
| – | N10242 N10242 N10242 N10242 N10242 N10242 N10242 | ASTM B-366 ASTM B-434 ASTM B-564 ASTM B-573 ASTM B-619 ASTM B-626 ASTM B-622 | Fitting Plate Forging Rod Welded pipe Welded tube Smls. pipe and tube | HAYNES® 242 alloy | ASME BPVC ASME BPVC ASME BPVC ASME BPVC ASME BPVC ASME BPVC ASME BPVC |
| NiMo22Cr15 – – – – – – – – | 2.4708 N10362 N10362 N10362 N10362 N10362 N10362 N10362 N10362 | – ASTM B-366 ASTM B-462 ASTM B-564 ASTM B-574 ASTM B-575 ASTM B-619 ASTM B-626 ASTM B-622 | – Fitting Forging Forging Rod Plate Welded pipe Welded tube Smls. pipe and tube | HYBRID-BC1® alloy | – ASME BPVC ASME BPVC ASME BPVC ASME BPVC ASME BPVC ASME BPVC ASME BPVC ASME BPVC |
| NiMo29Cr – – – – – – – | 2.4600 N10629 N10629 N10629 N10629 N10629 N10629 N10629 | EAM 0526-26:2004/07 ASTM B-333 ASTM B-335 ASTM B-366 ASTM B-462 ASTM B-564 ASTM B-619 ASTM B-622 | Flat products Plate Rod Fitting Forging Forging Welded pipe Smls. pipe and tube | Alloy B-4 Nimofer 6629 | EN 13445-10: PMA ASME BPVC ASME BPVC ASME BPVC ASME BPVC ASME BPVC ASME BPVC ASME BPVC |
| NiMo28 NiMo28 NiMo28 – – – – – – – | 2.4617 2.4617 2.4617 N10665 N10665 N10665 N10665 N10665 N10665 N10665 N10665 | EAM 0526-22:2004/07 EAM 0526-22-1:2004/07 EAM 0526-22-2:2004/07 ASTM B-333 ASTM B-335 ASTM B-366 ASTM B-462 ASTM B-564 ASTM B-619 ASTM B-622 ASTM B-626 | Flat Products Bars Forgings Plate Rod Fitting Forging Forging Welded pipe Smls. pipe and tube Pipes and Tube | HASTELLOY® B-2 alloy VDM® Alloy B-2 Nimofer 6928 | EN 13445-10: PMA EN 13445-10: PMA EN 13445-10: PMA ASME BPVC ASME BPVC ASME BPVC ASME BPVC ASME BPVC ASME BPVC ASME BPVC ASME BPVC |
| NiMo30Cr NiMo30Cr NiMo30Cr – – – – – – – | 2.4695 2.4695 2.4695 N10675 N10675 N10675 N10675 N10675 N10675 N10675 N10675 | EAM 0526-24:2004/07 EAM 0526-24-1:2004/07 EAM 0526-24-2:2004/07 ASTM B-333 ASTM B-335 ASTM B-366 ASTM B-462 ASTM B-564 ASTM B-619 ASTM B622 ASTM B626 | Flat Products Bars Forgings Plate Rod Fitting Forging Forging Welded pipe Smls. pipe and tube Pipes and Tube | HASTELLOY® B-3 alloy | EN 13445-10: PMA EN 13445-10: PMA EN 13445-10: PMA ASME BPVC ASME BPVC ASME BPVC ASME BPVC ASME BPVC ASME BPVC ASME BPVC ASME BPVC |
| GNiMo28 N7M | 2.4685 N30007 | – ASTM A-494 | Casting | cast alloy B2 | EN 13445-10: PMA ASME BPVC |
| GNiMo30 N12MV | 2.4882 N30012 | – – | Casting Casting | cast alloy B | EN 13445-10: PMA – |
| CW6M | N30107 | ASTM A-494 | Casting | – | ASME BPVC |