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 Alloy C-4 / Hastelloy C-4 / N06455 / 2.4610

Characteristics Hastelloy C-4

Physical properties
Density of Hastelloy c4 alloy (weight) - 8.64 g / cm3
Thermal properties N06455

Corrosion resistance
By combining chromium with a high molybdenum content, Nicrofer 6616 hMo is extremely resistant to a wide range of chemical environments; e.g. crude, reducing mineral acids (such as phosphoric, hydrochloric and sulfuric acids), chlorides and organic as well as inorganic media with chloride admixtures.
Due to its high nickel content, Nicrofer 6616 hMo is practically insensitive to chloride induced stress corrosion cracking as well as in hot chloride solutions.
Welding
Nicrofer 6616 hMo can be welded or welded to other materials using most conventional welding methods. These methods include conventional tungsten welding, arc welding or gas shielded welding. Arc welding is preferred. For gas-shielded welding, it is recommended to use a multicomponent shielding gas (Ar + He + H2 + COg).
The following welding consumable is recommended:
Uncoated electrodes
Nicrofer S 6616
Op.-2.4611
SG-NiMo16Cr16T
AWSA5.14: ERNiCrMo-7
BS2901 Part 5: NA45
Coated electrodes
Op.-No. 2.4612
EL-NiMo15Cr15Ti
AWSA5.14: ERNiCrMo-7

Surfacing
NicroferS 6616-WS C-4
Op.-2.4611
UP-NiMo16Cr16Ti
AWSA5.14: ERNiCrMo-7
Main features and advantages of the alloy:
Very good resistance in a wide range of corrosive environments under highly oxidizing conditions;
Excellent resistance to crevice corrosion, perforation corrosion and stress corrosion cracking.
Main areas of use:
flue gas desulphurisation, eg absorbing components;
recovery of pickling solution in finishing workshops;
components in the production of acetic acid and for the manufacture of chemical fertilizers and pesticides for plants.
Various products are produced from this alloy according to ASTM standards:
B366 - Forged fittings;
B574 - rods;
B575 - plates, sheets, strips;
B619 - welded pipes;
B622 - seamless pipes;
B626 - welded pipes;
B924 - Seamless welded tubes for heat exchangers and condensers with integrated fins.
Other materials

Steel L360NS - 1.8757
Steel M530-65A - 1.0824
Steel M560-50K - 1.0844
Steel NiCr15Fe8NbMoW

Steel 35 SPb 20
Steel OK 63.35 - 1.4430
ASTM A608 M / ASME SA608 M
AISI 304 and AISI 430 steel comparison

Inconel 625 / N06625 / 2.4856   Inconel 601 / N06601 / 2.4851   Inconel 718 / N07718 / 2.4668    Inconel 690 / N06690 / 2.4642

Inconel 617 / N06617 / 2.4663   Inconel X-750 / N07750 / 2.4669  Inconel 600 / N06600 / 2.4816    1.4876 / 1.4958

​​Incoloy 800HT / ​​N08811 / 1.4959     Incoloy 825 / N08825 / 2.4858   Incoloy 800H / N08810 / 1.4958     Incoloy 20 / N08020 / 2.4660

Incoloy 925 / UNS N09925            Hastelloy B-2 / N10665 / 2.4617   Hastelloy C-276 / N10276 / 2.4819   Hastelloy C-22 / N06022 / 2.4602

Hastelloy B-3 / UNS 10675 / 2.4600       Hastelloy C-4 / N06455 / 2.4610    Hastelloy X / N06002 / 2.4665        Monel 400 / UNS N04400 / 2.4360

 Monel K-500 / N05500 / 2.4375      Monel R-405 / N04405