ASTM B564-2015 Nickel Alloy Forgings
Alloy Type: Ni-Cu
UNS Designation: N04400
Features
Alloy 400 has excellent resistance to corrosion by many reducing media such as sulfuric and hydrochloric acids. It is generally more resistant to corrosion by oxidizing media than higher copper alloys Alloy 400 resists pitting and stress corrosion cracking in most fresh and industrial waters. It has good resistance in flowing seawater, but under stagnant conditions, pitting and crevice corrosion is induced. Alloy 400 is probably the most resistant to rdrofuoric acid in all concentrations up to point, of all engineering alloys Alloy 400 is notable for its toughness, it does not show embrittlement tendency at cryogenic temperatures. It is work hardenable.
Applications
Chemical process equipment, crude oil stills, gasoline and fresh water tanks, marine engineering equipment, valves, pumps and fasteners.
Ordering Information
It is the responsibility of the purchaser to specify all requirements that are necessary for material ordered under this specification. Examples of such requirements include, but are not limited to, the following:
1 Alloy type.
2 Condition.
3 Quantity (mass or number of pieces).
4 Forging, sketch or drawing.
5 Certification-State if certification or a report of test results is required.
6 Samples for Product (Check) Analysis-Whether samples for product (check) analysis should be furnished.
7 Purchaser Inspection—If the purchaser wishes to witness tests or inspection of material at the place of manufacture, the purchase order must so state indicating which tests or inspections are to be witnessed.
Chemical Requirements: Composition, %
Ni: ≥63.0
Cu: 28.0-34.0
Fe: ≤2.5
Mn: ≤2.0
C: ≤0.3
Si: ≤0.5
S: ≤0.024
Mechanical Property Requirements
Condition: annealed
Tensile Strength: ≥483MPa
Yield Strength: ≥172MPa
Elongation in 2 in. or 50 mm (or 4D), %: ≥35
