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ISO/TR 15608 Material Group 44

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)

NameNumberStandardProductAlloyRemarks
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 HNASME 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 alloyASME 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 alloyEN 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
Castingcast alloy B2EN 13445-10: PMA
ASME BPVC
GNiMo30
N12MV
2.4882
N30012

Casting
Casting
cast alloy BEN 13445-10: PMA
CW6MN30107ASTM A-494CastingASME BPVC
Table: Typical materials