ASTM F468/F468M UNS N06059 Alloy 59 Bolts, Screws, Stud Bolts

This specification covers requirements for commercial wrought non ferrous bolts, hex cap screws and stud bolts from diameter 1/4 inch to 1-1/2 inch inclusive manufactured from variety of Copper alloys, Monel alloy 400, 405, K500, Inconel 625, Aluminum alloys and Titanium as well, intended for general service applications. BoltPort manufactures most of the alloy bolting cover under ASTM F468 and F468M with coarse and fine threads. All the bolt and screw products are duly tested and supplied with EN 10204 Type 3.1 certification.

ASTM F468 UNS N06059 Chemical Requirements

Composition, %
Nickel and Nickel Base Alloys
UNS Designation Alloy General Name Aluminum Carbon, max Chromium CopperA Iron, max Manganese, max NickelA Phosphorus, max Silicon, max Titanium Cobalt, max Molybdenum Sulfur, max Vanadium Tungsten
N06059 59 Ni-Cu-Mo 0.10 - 0.40 0.010 max 22.0 - 24.0 0.50 max 1.50 0.50 balance 0.015 0.10 -- 0.30 15.0 - 16.5 0.010 -- --

A Elements shown as balance shall be arithmetically computed by deducting the sum of the other named elements from 100.
B Cobalt is to be counted as nickel.
C Alloy 625 material shall be refined using the electrostag remelting process (ESR), or the vacuum arc remelting process (VAR).

ASTM F468 UNS N06059 Mechanical Properties

Alloy Mechanical Property Marking Nominal Thread Diameter, inch HardnessA Full Size Tests B Machined Specimen Tests
Tensile Strength, min, ksi Yield Strength, min, ksiC Tensile Strength, min, ksi Yield Strength, min, ksiC Elongation in 4D, min %D
Nickel Alloys
Ni 59 Grade 1 F468FN all 21 - 45 HRC 120 165 85 120 85 20
Ni 59 Grade 2 F468GN all 23 - 47 HRC 135 - 185 125 135 125 20
Ni 59 Grade 3 F468HN all 25 - 49 HRC 160 - 200 150 160 150 20
Ni 59 Grade 4 F468JN all 80 HRC - 25 HRC 100 - 145 45 100 45 25

A where both tension and hardness tests are performed, the tension tests shall take precedence for acceptance purposes. For alumium and titanium alloys, hardness tests are for information only.
B The yield tensile strength values for full size products shall be computed by dividing the yield and maximum tensile load by the stress area for the product diameter and thread pitch as given in table on tensile stress areads.
C Yield strength is the stress at which an offset of 0.2% gauge length occurs.
D Elongation is determined using a gauge length of 4 diameters of test specimen in accordance with Test Methods E8.
E "HF" denoted a hot formed product
F Aluminum alloy temper designations are in accordance with ANSI H35.1.
G Full size test mechanical properties apply to fasteners with a maximum diameter of 76 mm. Mechanical properties of larger sections shall be negotiated between the material manufacturer and the fastener producer.
H Ti 5 Class A requires wedge test tensile testing in accordance with section 6.6 & Ti 5.5 Class B requires wedge tensile testing in accordance with section 6.5.1 of ASTM F468.

Test Methods

Alloy Test Method
Nickel E38, E76, E354