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