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CARBON ALLOY
Although
carbon alloy is produced to commercial specification for the automotive and oil
tool industries, we are primarily involved with the supply of these materials
to aircraft or military specification. These grades of steels have had Chromium,
Nickel and/or Molybdenum added to facilitate heat treatment. Carbon alloy is
produced in the form of round, square, flat and hex bar, as well as in tubing,
sheet and plate. The material is available in the following physical and
surface conditions, although a particular size will not be available in all
conditions from stock.
The
following is a summary of the symbols used in military (MIL) specifications to
designate various conditions of materials.
| Physical
Condition |
Surface
Condition |
| A
- As Forged |
1
- As Forged or Rolled |
| B
- As Rolled |
2
- Pickled or Blast Cleaned |
| C
- Annealed |
3
- Rough Turned |
| D
- Normalized |
4
- Cold Finished |
| E
- Normalized & Tempered |
5
- Turned, Ground & Polished |
| F
- Quenched & Tempered |
|
The
following is a listing of the most common grades of aircraft quality carbon
alloy and some of the specifications to which they are standardly produced for
stock.
| ALLOY |
SPECIFICATIONS |
| E-4130 |
MIL-S-6758,
AMS-6370, AMS-2301 |
| E-4130
H.T.R.C. 26/32 |
MIL-S-6758,
AMS-2301, EMS-626A |
| E-4140 |
MIL-S-5626,
AMS-6382, AMS-2301 |
| E-4330
Mod N&T |
MIL-S-8699,
AMS-6427, AMS-2301, BMS-7-27 |
| E-4330
Mod. Vac. Melt. N&T |
MIL-S-8699,
AMS-6411, AMS-6427BMS-7-27,
AMS-2300, BMS-7-122, EMS-96242, GM-1010, CE-0906, FMS-1012 |
| E-4340
N&T |
MIL-S-5000,
AMS-6415, AMS-2301 |
| E-4340
Vac. Melt. N&T |
MIL-S-8844
CL 1, MIL-S-5000, AMS-6415, AMS-2300, AMS-6414, EMS-641, DMS-1555, BMS 7-28,
BPS 299-947-055 |
| E-4340
Mod. Vac. Melt N&T "300M" |
MIL-S-8844-CL
3, MIL-S-83135, AMS-6417, AMS-6419, AMS-2300, EMS-96244, CE-0896, GM-1012,
BMS 7-26 CL-1, STM-05-501, DMS-1935, LC05-1190 |
| E-4620 |
MIL-S-7493,
AMS-6294, AMS-2301 |
| E-6150 |
MIL-S-8503,
AMS-6448, AMS-2301 |
| E-8740 |
MIL-S-6049,
AMS-6322, AMS-2301 |
| E-9310
N&T |
MIL-S-7393C,
AMS-6260, AMS-2301, Alres, HT 5042 |
| E-9310
N&T Vac. Melt. |
MIL-S-7393C,
AMS-6265, AMS-6260, AMS-2300, BMS 7-249, Alres, HT-5042, BPS 299-947-032,
MIL-S-83030 Comp. 3, AMS 6267 |
| E-52100 |
MIL-S-7420,
AMS-6440, AMS-2301 |
| E-52100
Vac. Melt. |
MIL-S-7420,
AMS-6444, AMS-6440, AMS-2300 |
| D6AC
Vac. Melt. |
MIL-S-8949,
AMS-6431, Gen. Dyn. FMS-1011-C, LCM-05-2190, AMS-2300, STM-05-500, GM-1013 |
| H-11
Vac. Melt. |
AMS-6487,
EMS 642, AMS 2300, AMS 6488 |
| Hy-Tuf |
MIL-S-7106,
AMS-6418, AMS-2301, DMS-1841, GR B |
| Hy-Tuf
Vac. Melt. |
AMS
6418, MIL-5-7108, DMS 1841 GR A, AMS 2300 |
| Nitriding
BHN 241-285 |
MIL-S-6709A,
AMS-6470 Exc. Hardness, AMS-6472, AMS-2301 |
| Nitriding
Vac. Melt. |
MIL-S-6709A,
AMS-6471-B 135 Modified, AMS-2300 |
| 9-4-30
Vac. Melt. |
AMS
6526, BMS-7-182B, STO-160-LB-0012, MMS-2102 Exc. Fracture Test |
AIRCRAFT QUALITY
CARBON ALLOY
Aircraft quality bars are produced in twelve foot random
lengths. Listed below are the standard stock sizes.
|
ROUND BAR |
Size
in
Inches |
Est. Wt. Lbs. |
Size in
Inches |
Est. Wt. Lbs. |
Size in
Inches |
Est. Wt. Lbs. |
Size in
Inches |
Est. Wt. Lbs. |
per
foot |
12-ft.
Bar |
per
foot |
12-ft.
Bar |
per
foot |
12-ft.
Bar |
per
foot |
12-ft.
Bar |
| 1/4 |
.1671 |
2.005 |
1-1/2 |
6.014 |
72.17 |
3-3/8 |
30.45 |
365.3 |
6-3/4 |
121.8 |
1461 |
| 5/16 |
.2610 |
3.132 |
1-5/8 |
7.058 |
84.70 |
3-1/2 |
32.74 |
392.9 |
7 |
131.0 |
1572 |
| 3/8 |
.3759 |
4.510 |
1-3/4 |
8.186 |
98.23 |
3-5/8 |
35.12 |
421.5 |
7-1/2 |
150.4 |
1804 |
|
7/16 |
.5116 |
6.139 |
1-7/8 |
9.397 |
112.8 |
3-3/4 |
37.59 |
451.0 |
8 |
171.1 |
2053 |
| 1/2 |
.6682 |
8.019 |
2 |
10.69 |
128.3 |
4 |
42.77 |
513.2 |
8-1/4 |
181.9 |
2183 |
| 9/16 |
.8457 |
10.15 |
2-1/8 |
12.07 |
144.8 |
4-1/4 |
48.28 |
579.3 |
8-1/2 |
193.1 |
2317 |
|
5/8 |
1.044 |
12.53 |
2-1/4 |
13.53 |
162.4 |
4-1/2 |
54.13 |
649.5 |
9 |
216.5 |
2598 |
| 11/16 |
1.263 |
15.16 |
2-3/8 |
15.08 |
180.9 |
4-3/4 |
60.31 |
723.7 |
9-1/2 |
241.2 |
2895 |
| 3/4 |
1.504 |
18.04 |
2-1/2 |
16.71 |
200.5 |
5 |
66.82 |
801.9 |
10 |
267.3 |
3207 |
| 13/16 |
1.765 |
21.17 |
2-5/8 |
18.42 |
221.0 |
5-1/4 |
73.67 |
884.0 |
10-1/2 |
294.7 |
3536 |
| 7/8 |
2.046 |
24.56 |
2-3/4 |
20.21 |
242.6 |
5-1/2 |
80.86 |
970.2 |
11 |
323.4 |
3881 |
| 15/16 |
2.349 |
28.19 |
2-7/8 |
22.09 |
265.1 |
5-3/4 |
88.37 |
1060 |
11-1/2 |
353.5 |
4242 |
| 1 |
2.673 |
32.07 |
3 |
24.06 |
288.7 |
6 |
96.22 |
1155 |
12 |
384.9 |
4619 |
| 1-1/8 |
3.383 |
40.59 |
3-1/8 |
26.10 |
313.2 |
6-1/4 |
104.4 |
1253 |
12-1/2 |
417.6 |
5012 |
| 1-1/4 |
4.176 |
50.12 |
3-1/4 |
28.23 |
313.8 |
6-1/2 |
112.9 |
1355 |
14 |
523.9 |
6287 |
| 1-3/8 |
5.053 |
60.64 |
|
|
|
|
|
|
|
|
|
|
HEX BAR |
Size
in
Inches |
Est. Wt. Lbs. |
Size in
Inches |
Est. Wt. Lbs. |
per
foot |
12-ft.
Bar |
per
foot |
12-ft.
Bar |
|
1/4 |
.1842 |
2.210 |
15/16 |
2.590 |
31.08 |
|
5/16 |
.2878 |
3.454 |
1 |
2.947 |
35.37 |
|
3/8 |
.4145 |
4.973 |
1-1/16 |
3.327 |
39.93 |
| 7/16 |
.5641 |
6.769 |
1-1/8 |
3.730 |
44.76 |
|
1/2 |
.7368 |
8.842 |
1-3/16 |
4.156 |
49.87 |
|
9/16 |
.9325 |
11.19 |
1-1/4 |
4.605 |
55.26 |
| 5/8 |
1.151 |
13.82 |
1-5/16 |
5.077 |
60.93 |
|
11/16 |
1.393 |
16.72 |
1-3/8 |
5.572 |
66.87 |
|
3/4 |
1.658 |
19.89 |
1-7/16 |
6.090 |
73.08 |
|
13/16 |
1.946 |
23.35 |
1-1/2 |
6.631 |
79.56 |
|
7/8 |
2.257 |
27.08 |
1-5/8 |
7.783 |
93.39 |
|
|
|
SQUARE BAR |
Size
in
Inches |
Est. Wt. Lbs. |
Size in
Inches |
Est. Wt. Lbs. |
per
foot |
12-ft.
Bar |
per
foot |
12-ft.
Bar |
| 3/8 |
.4790 |
5.74 |
2 |
13.61 |
163.4 |
| 1/2 |
.8508 |
10.21 |
2-1/4 |
17.23 |
206.7 |
| 5/8 |
1.329 |
15.95 |
2-1/2 |
21.27 |
255.2 |
| 3/4 |
1.914 |
22.97 |
3 |
30.63 |
367.5 |
| 1 |
3.403 |
40.84 |
3-1/2 |
41.69 |
500.3 |
| 1-1/4 |
5.318 |
63.81 |
4 |
54.45 |
653.4 |
| 1-1/2 |
7.657 |
91.89 |
5 |
85.08 |
1021 |
| 1-3/4 |
10.42 |
125.1 |
6 |
122.5 |
1470 |
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