ASTM F468/F468M Non Ferrous Bolts, Hex Cap Screws, Studs

ASTM F468 / F468M - Standard Specification for Non Ferrous Bolts, Hex Cap Screws and Stud Bolts for General Application.

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 Alloy Categories

Alloy Condition
All Alloys in Copper As formed or stress relieved at manufacturer's option
Nickel Alloys:  
Monel 400 and Monel 405 As formed or stress relieved at manufacturer's option
Monel K500 Solution annealed and aged
Inconel 625 Annealed
Aluminum Alloys:  
2024-T4 Solution treated and naturally aged
6061-T6 Solution treated and artificially aged
6262-T73 Solution treated and stablilized
Titanium As Formed

ASTM F468 Chemical Requirements

Composition, %
Copper and Copper Base Alloys
UNS Designation Alloy General Name Aluminum Copper, min Iron, max Manganese, max Nickel, max Phosphorus Silicon Zinc, maxA Lead, max Tin Arsenic, max
C11000 110 ETP Copper -- 99.9 -- -- -- -- -- -- -- -- --
C26000 260 Brass -- 68.5 - 71.5 0.05 -- -- -- -- balance 0.07 -- --
C27000 270 Brass -- 63.0 - 68.5 0.07 -- -- -- -- balance 0.10 -- --
C46200 462 Naval Brass -- 62.0 - 65.0 0.10 -- -- -- -- balance 0.20 0.50 - 1.00 --
C46400 464 Naval Brass -- 59.0 - 62.0 0.10 -- -- -- -- balance 0.20 0.50 - 1.00 --
C51000 510 Phosphor Bronze -- balanceA 0.10 -- -- 0.03 - 0.35 -- 0.30 0.05 4.20 - 5.80 --
C61300 613 Aluminum Bronze 6.0 - 7.5 B 2.0 - 3.0 0.10 0.15C 0.015 0.10 0.05 0.01 0.20 - 0.50 --
C61400 614 Aluminum Bronze 6.0 - 8.0 88.0D 1.5 - 3.5 1.00 -- -- -- -- -- -- --
C63000 630 Aluminum Bronze 9.0 - 11.0 78.0D 2.0 - 4.0 1.50 4.0 - 5.5 -- 0.25 max -- -- 0.20 max --
C64200 642 Aluminum Silicon Bronze 6.3 - 7.6 88.65D 0.30 0.10 0.25 -- 1.50 - 2.20E 0.50 0.05 0.20 max 0.15
C65100 651 Silicon Bronze -- 96.0D 0.80 0.70 -- -- 0.8 - 2.0 1.50 0.05 -- --
C65500 655 Silicon Bronze -- 94.8D 0.80 1.50 0.60 -- 2.8 - 3.8 1.50 0.05 -- --
C66100 661 Silicon Bronze 0.25 max 94.0D 0.25 1.50 -- -- 2.8 - 3.5 1.50 0.20 - 0.80 -- --
C67500 675 Manganese Bronze -- 57.0 - 60.0 0.8 - 2.0 0.05 - 0.50 -- -- -- balance 0.20 0.50 - 1.50 --
C71000 710 Cupro Nickel -- 74.0D 0.60 1.00 19.0 - 23.0C -- 1.00 0.05 -- --
C71500 715 Cupro Nickel -- 65.0D 0.40 - 0.70 1.00 29.0 - 33.0C -- -- 1.00 0.05 -- --

A Elements shown as balance shall be arithmetically computed by deducting the sum of the other named elements from 100.
B Copper plus specified elements = 99.8 min; copper plus silver = 88.5-91.5.
C Cobalt is to be counted as nickel
D Minimum content of copper plus all other elements with specified limits shall be 99.5%.
E An alloy containing as high as 2.5% silicon is acceptable provided the sum of all the lements other than copper, silicon and iron does not exceed 0.30 %.

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
N10001 335 Ni-Mo -- 0.05 1.00 max -- 4.00 - 6.00 1.00 balance 0.025 1.00 -- 2.50 26.0 - 30.0 0.030 0.20 - 0.40 --
N10276 276 Ni-Mo-Cr -- 0.02 14.5 - 16.5 -- 4.00 - 7.00 1.00 balance 0.040 0.08 -- 2.50 15.0 - 17.0 0.030 0.35 max 3.0 - 4.5
N04400 400 Ni-Cu Class A -- 0.30 -- balance 2.50 2.00 63.0 - 70.0 -- 0.50 -- B -- 0.024 -- --
N04405 405 Ni-Cu Class B -- 0.30 -- balance 2.50 2.00 63.0 - 70.0 -- 0.50 -- B -- 0.025 - 0.060 -- --
N05500 500 Ni-Cu-Al 2.30 - 3.15 0.25 -- balance 2.00 1.50 63.0 - 70.0 0.015 0.50 0.35 - 0.85 B -- 0.010 -- --
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 -- --
N06625 625C Ni-Cr-No-Cb 0.40 max 0.010 max 20.0 - 23.0 -- 5.00 0.50 58.0 min 0.040 0.50 0.40 max 1.00 8.0 - 10.0 0.015 -- 3.2 - 4.2
N06686 686 Ni-Cr-Mo-W -- 0.010 max 19.0 - 23.0 -- 5.00 0.50 balance -- 0.08 0.02 - 0.25 -- 15.0 - 17.0 0.02 -- 3.0 - 4.4

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).

Composition, %
Aluminum Base AlloysA
UNS Designation Alloy General Name AluminumB Chromium Copper Iron, max Manganese, max Silicon, max Titanium, max Zinc, max Magnesium Other Elements, max
Each Total
A92024 2024 Aluminum 2024 balance 0.10 max 3.80 - 4.90 0.50 0.30 - 0.90 0.50 0.15C 0.25 1.20 - 1.80 0.05 0.15
A96061 6061 Aluminum 6061 balance 0.04 - 0.35 0.15- 0.40 0.70 0.15 0.40 - 0.80 0.15 0.25 0.80 - 1.20 0.05 0.15
A97075 7075 Aluminum 7075 balance 0.18 - 0.35 1.20 - 2.00 0.50 0.30 0.40 0.20D 5.10 - 6.10 2.10 - 2.90 0.05 0.15

A Analysis shall regularly be made only for the elements specified in this table. If, however, the presend of other elements is suspected or indicated in amounts greater than the specified limits, further analysis shall be made to determine that these elements are not rpesent in excess of the specified limits.
B Elemens shown as balance shall be arithmetically computed by deducting the sum of the other named elements from 100.
C Titanium + Zirconium 0.20 %, max
D Titanium + Zirconium 0.25 %, max

Composition, %
Titanium and Titanium Base AlloysA
UNS Designation Alloy General Name Aluminum Carbon Iron Titanium Hydrogen Nitrogen Oxygen Palladium Vanadium Chromium Molybdenum Zirconium Tin Silicon ResidualsB
Each Total
R50250 1 Titanium Grade 1 -- 0.10 0.20 balance 0.0125 0.05 0.18 -- -- -- -- -- -- -- -- 0.10 0.40
R50400 2 Titanium Grade 2 -- 0.10 0.30 balance 0.0125 0.05 0.25 -- -- -- -- -- -- -- -- 0.10 0.40
R50700 4 Titanium Grade 4 -- 0.10 0.50 balance 0.0125 0.07 0.40 -- -- -- -- -- -- -- -- 0.10 0.40
R56400 5C Titanium grade 5C 5.50 - 6.75 0.10 0.40 balance 0.0125 0.05 0.20 3.50 - 4.50 0.10 0.40
R54601 23 Titanium Ti-5Al-4V ELI 5.50 - 6.50 0.08 0.25 balance 0.0125 0.05 0.13 -- 3.50 - 4.50 -- -- -- -- -- -- 0.10 0.40
R52400 7 Titanium Grade 7 -- 0.10 0.30 balance 0.0125 0.05 0.25 0.12 - 0.25 -- -- -- -- -- -- -- 0.10 0.40
R58640 19 Titanium Ti-28-6-44 3.00 - 4.00 0.05 0.30 balance 0.0200 0.03 0.12 0.10D 7.50 - 8.50 5.50 - 6.50 3.50 - 4.50 3.50 - 4.50 -- -- 0.10D 0.15 0.40
R55111 32 Titanium Ti-5-1-1-1 4.50 - 5.50 0.08 0.25 balance 0.0125 0.03 0.11 -- 0.60 - 1.40 -- 0.60 - 1.20 0.60 - 1.40 0.60 - 1.40 0.60 - 1.40 -- 0.10 0.40

A All reported values are maximums, unless a range is specified.
B A residual is an element present in a metal or an alloy in small quantities inherent to the manufacturing process but not added intentionally. Residual elements need not be reported unless a report is specially required by the purchaser.
C Identical chemical requirements apply to both Class A and B as defined in Table 2 and 6.5 of ASTM F468.
D Ruthenium and palladium, or both, may be added to Grade 19 for enhanced corrosion resistance as negotiated between purchaser and vendor. Chemical analysis is not required unless specifically required by the purchaser.

ASTM F468 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
Copper
Cu 110 F 468A all 65 - 90 HRF 30 - 50 10 30 10 15
Cu 260 F 468AB all 55 - 80 HRF 60 - 90 50 55 50 35
Cu 270 F 468B all 55 - 80 HRF 60 - 90 50 55 50 35
Cu 462 F 468C all 65 - 90 HRF 50 - 80 25 50 25 20
Cu 464 F 468D all 55 - 75 HRF 50 - 80 15 50 15 25
Cu 510 F 468E all 60 - 95 HRF 60 - 90 35 55 30 15
Cu 613 F 468F 0.250 - 0.500
0.625 - 1.500
70 - 95 HRF
70 - 95 HRF
80 - 110
75 - 105
50
45
80
75
50
45
30
30
Cu 614 F 468G all 70 - 95 HRF 75 - 110 35 75 35 30
Cu 630 F 468H all 85 - 100 HRF 100 - 130 50 100 50 5
Cu 642 F 468J all 75 - 95 HRF 75 - 110 35 75 35 10
Cu 651 F 468K 0.250 - 0.750
0.875 - 1.500
75 - 95 HRF
70 - 95 HRF
70 - 100
55 - 90
55
40
70
54
53
38
8
8
Cu 655 F 468L all 60 - 80 HRF 50 - 80 20 50 15 20
Cu 661 F 468M all 75 - 95 HRF 70 - 100 35 70 35 15
Cu 675 F 468N all 60 - 90 HRF 55-85 25 55 25 20
Cu 710 F 468P all 50 - 85 HRF 45-75 15 45 15 40
Cu 715 F 468R all 60 - 95 HRF 55 - 85 20 55 20 45
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
NI 335 F 468S all 20 - 32 HRC 115 - 145 45 115 45 35
Ni 276 F 468T all 20 - 32 HRC 110 - 140 45 110 45 25
Ni 400 F 468U 0.250 - 0.750
0.875 - 1.500
75 HRC - 25 HRC
60 HRC - 25 HRC
80 - 130
70 - 130
40
30
80
70
40
30
20
20
Ni 400 HFE F 468HF all 60 - 95 HRB 70 - 120 30 70 30 20
Ni 405 F 468V all 60 HRB - 20 HRC 70 - 125 30 70 30 20
Ni 500 F 468W 0.250 - 0.875 24 - 37 HRC 130 - 180 90 130 90 20
Ni 500 F 468W 1.000 - 1.500 24 - 37 HRC 130 - 180 85 130 85 20
Ni 625 F 468AC all 85 HRB - 35 HRC 120 60 120 60 30
Ni 686 Grade 1 F 468BN all 21 - 45 HRC 120 - 165 85 120 85 20
Ni 686 Grade 2 F 467CN all 23 - 47 HRC 135 - 185 125 135 125 20
Ni 686 Grade 3 F 468DN all 25 - 49 HRC 160 - 200 150 160 150 20
Ni 686 Grade 4 F 468EN all 65 HRB - 25 HRC 100 - 145 45 100 45 25
Aluminum
Al 2024 - T4B F 468X all 70 HRB 100 - 145 45 100 45 25
Al 6061 - T6 F 468Y all 40 HRB 100 - 145 45 100 45 25
Al 6262 - T9 F 468Z all 60 HRB 100 - 145 45 100 45 25
Titanium Alloys
Ti 1 F 468AT all 140 - 160 HV 35 - 70 30 35 25 24
Ti 2 F 468BT all 160 - 180 HV 50 - 85 45 50 40 20
Ti 4 F 468CT all 200 - 220 HV 80 - 115 75 80 70 15
Ti 5 Class AH F 468DT all 30 - 39 HRC 130 - 165 125 130 120 10
Ti 5 Class BH F 468HT all 30 - 39 HRC 130 - 165 125 130 120 10
Ti 7 F 468ET all 160 - 180 HV 50 - 85 45 50 40 20
Ti 19 F 468FT all 24 - 38 HRC 115 - 150 115 120 115 15
Ti 23 F 468GT all 25 - 38 HRC 120 - 165 110 120 110 10
Ti-5-1-1-1 F 468AHT all 24 - 38 HRC 105 - 150 90 100 85 10

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.

Tensile Stress Areas and Threads per Inch

Nominal Size, inch. Coarse Threads - UNC Fine Threads - UNF 8 Thread Series - 8UN
Threads / inch Stress AreaA, in2 Threads / inch Stress AreaA, in2 Threads / inch Stress AreaA, in2
1/4 20 0.0318 28 0.0364 -- --
5/16 18 0.0524 24 0.0580 -- --
3/18 16 0.0775 24 0.0878 -- --
7/16 14 0.1063 20 0.1187
1/2 13 0.1419 20 0.1599
9/16 12 0.1820 18 0.2030
5/8 11 0.2260 18 0.2560
3/4 10 0.3340 16 0.3730
7/8 9 0.4620 14 0.5090
1 8 0.6060 12 0.6630
1 1/8 7 0.7630 12 0.8560 8 0.790
1 1/4 7 0.9690 12 1.0730 8 1.000
1 3/8 6 1.1550 12 1.3150 8 1.233
1 1/2 6 1.4050 12 1.5810 8 1.492

A Tensile stress areas are computed using the following formula: As = 0.7854 [D- (0.9743/n)]2
Where:
As = Tensile stress area, in.2,
D = Nominal size (basic major diameter), in., and,
n = number of threads per inch.

Remarks

For silicon bronze alloy 651, the thread length for bolts ordered with roll thread body diameter shall conform to the following:

Bolt Length, inch Thread Length
2.00 and less within 2 threads of the head
Over 2.00 to 6.00, incl. 2.00 inch min + 2 threads
Over 6.00 3.00 inc min + 2 threads

Test Methods

Alloy Test Method
Copper E52, E54, E62, E75, E478
Aluminum E34, E101, E227
Nickel E38, E76, E354
Titanium E120, E1409