USEFUL TABLES OF WEIGHTS OF IRON AND COMPARISONS OF GAUGES.

Weight of a Superficial Foot of Plate and Sheet Iron.

+------------------------------------------------------+

| PLATE IRON. |

+----------------------------+-------------------------+

| | Weight |

| Thickness. | per |

| | square foot. |

+----------------------------+-------------------------+

| INCHES. | POUNDS. |

+----------------------------+-------------------------+

| 1/16 in. | 2-1/2 |

| 1/8 „ | 5 |

| 3/16 „ | 7-1/2 |

| 1/4 „ | 10 |

| 5/16 „ | 12-1/2 |

| 3/8 „ | 15 |

| 7/16 „ | 17-1/2 |

| 1/2 „ | 20 |

| 9/16 „ | 22-1/2 |

| 5/8 „ | 25 |

| 11/16 „ | 27-1/2 |

| 3/4 „ | 30 |

| 13/16 „ | 32-1/2 |

| 7/8 „ | 35 |

| 15/16 „ | 37-1/2 |

| 1 „ | 40 |

+----------------------------+-------------------------+

| SHEET IRON. |

+----------------------------+-------------------------+

| UNITED STATES STANDARD GAUGE. |

| Adopted by Congress, to take effect July 1st, 1893. |

+---------+----------+--------------+------------------+

| NUMBER | 1000’S | WEIGHT | NEAREST |

| OF | OF | PER | FRACTION OF |

| GAUGE. | an Inch. | square foot. | an inch. |

| | | OUNCES | |

+---------+----------+--------------+------------------+

| No. 1 | .281 | 180 oz. | 9/32 in. |

| „ 2 | .265 | 170 „ | 17/64 „ |

| „ 3 | .250 | 160 „ | 1/4 „ |

| „ 4 | .234 | 150 „ | 15/64 „ |

| „ 5 | .218 | 140 „ | 7/32 „ |

| „ 6 | .203 | 130 „ | 13/64 „ |

| „ 7 | .187 | 120 „ | 3/16 „ |

| „ 8 | .171 | 110 „ | 11/64 „ |

| „ 9 | .156 | 100 „ | 5/32 „ |

| „ 10 | .140 | 90 „ | 9/64 „ |

| „ 11 | .125 | 80 „ | 1/8 „ |

| „ 12 | .109 | 70 „ | 7/64 „ |

| „ 13 | .093 | 60 „ | 3/32 „ |

| „ 14 | .078 | 50 „ | 5/64 „ |

| „ 15 | .070 | 45 „ | 9/128 „ |

| „ 16 | .062 | 40 „ | 1/16 „ |

| „ 17 | .056 | 36 „ | 9/160 „ |

| „ 18 | .050 | 32 „ | 1/20 „ |

| „ 19 | .043 | 28 „ | 7/160 „ |

| „ 20 | .037 | 24 „ | 3/80 „ |

| „ 21 | .034 | 22 „ | 11/320 „ |

| „ 22 | .031 | 20 „ | 1/32 „ |

| „ 23 | .028 | 18 „ | 9/320 „ |

| „ 24 | .025 | 16 „ | 1/40 „ |

| „ 25 | .021 | 14 „ | 7/320 „ |

| „ 26 | .018 | 12 „ | 3/160 „ |

| „ 27 | .017 | 11 „ | 11/640 „ |

| „ 28 | .015 | 10 „ | 1/64 „ |

| „ 29 | .014 | 9 „ | 9/640 „ |

| „ 30 | .012 | 8 „ | 1/80 „ |

+---------+----------+--------------+------------------+

Weight of One Foot of Round Iron.

+----------------+---------------------+

| SIZE. | Weight pr. Foot. |

+----------------+---------------------+

| | LBS. |

+----------------+---------------------+

| 1/8 in. | .041 |

| 3/16 „ | .092 |

| 1/4 „ | .164 |

| 5/16 „ | .256 |

| 3/8 „ | .368 |

| 7/16 „ | .501 |

| 1/2 „ | .654 |

| 9/16 „ | .828 |

| 5/8 „ | 1.02 |

| 11/16 „ | 1.24 |

| 3/4 „ | 1.47 |

| 13/16 „ | 1.73 |

| 7/8 „ | 2.00 |

| 15/16 „ | 2.30 |

| 1 „ | 2.62 |

| 1-1/16 „ | 2.95 |

| 1-1/8 „ | 3.31 |

| 1-3/16 „ | 3.69 |

| 1-1/4 „ | 4.09 |

| 1-5/16 „ | 4.51 |

| 1-3/8 „ | 4.95 |

| 1-7/16 „ | 5.41 |

| 1-1/2 „ | 5.89 |

| 1-9/16 „ | 6.39 |

| 1-5/8 „ | 6.91 |

| 1-11/16 „ | 7.45 |

| 1-3/4 „ | 8.02 |

| 1-13/16 „ | 8.60 |

| 1-7/8 „ | 9.20 |

| 1-15/16 „ | 9.83 |

| 2 „ | 10.47 |

| 2-1/8 „ | 11.82 |

| 2-1/4 „ | 13.25 |

| 2-3/8 „ | 14.77 |

| 2-1/2 „ | 16.36 |

| 2-3/8 „ | 18.04 |

| 2-3/4 „ | 19.80 |

| 2-7/8 „ | 21.64 |

| 3 „ | 23.56 |

| 3-1/8 „ | 25.57 |

| 3-1/4 „ | 27.65 |

| 3-3/8 „ | 29.82 |

| 3-1/2 „ | 32.07 |

| 3-5/8 „ | 34.40 |

| 3-3/4 „ | 36.82 |

| 3-7/8 „ | 39.31 |

| 4 „ | 41.89 |

| 4-1/8 „ | 44.55 |

| 4-1/4 „ | 47.29 |

| 4-3/8 „ | 50.11 |

| 4-1/2 „ | 53.01 |

| 4-5/8 „ | 56.00 |

| 4-3/4 „ | 59.07 |

| 4-7/8 „ | 62.22 |

| 5 „ | 65.45 |

| 5-1/8 „ | 68.76 |

| 5-1/4 „ | 72.16 |

| 5-3/8 „ | 75.64 |

| 5-1/2 „ | 79.19 |

| 5-5/8 „ | 82.83 |

| 5-3/4 „ | 86.56 |

| 5-7/8 „ | 90.36 |

| 6 „ | 94.25 |

+----------------+---------------------+

Weight of One Foot of Square Iron.

+----------------+---------------------+

| SIZE. | Weight pr. Foot. |

+----------------+---------------------+

| | LBS. |

+----------------+---------------------+

| 1/8 in. | .052 |

| 3/16 „ | .117 |

| 1/4 „ | .208 |

| 5/16 „ | .326 |

| 3/8 „ | .469 |

| 7/16 „ | .638 |

| 1/2 „ | .833 |

| 9/16 „ | 1.06 |

| 5/8 „ | 1.30 |

| 11/16 „ | 1.58 |

| 3/4 „ | 1.87 |

| 13/16 „ | 2.20 |

| 7/8 „ | 2.55 |

| 15/16 „ | 2.93 |

| 1 „ | 3.33 |

| 1-1/16 „ | 3.76 |

| 1-1/8 „ | 4.22 |

| 1-3/16 „ | 4.70 |

| 1-1/4 „ | 5.21 |

| 1-5/16 „ | 5.74 |

| 1-3/8 „ | 6.30 |

| 1-7/16 „ | 6.89 |

| 1-1/2 „ | 7.50 |

| 1-9/16 „ | 8.14 |

| 1-5/8 „ | 8.80 |

| 1-11/16 „ | 9.49 |

| 1-3/4 „ | 10.21 |

| 1-13/16 „ | 10.95 |

| 1-7/8 „ | 11.72 |

| 1-15/16 „ | 12.51 |

| 2 „ | 13.33 |

| 2-1/8 „ | 15.05 |

| 2-1/4 „ | 16.88 |

| 2-3/8 „ | 18.80 |

| 2-1/2 „ | 20.83 |

| 2-3/8 „ | 22.97 |

| 2-3/4 „ | 25.21 |

| 2-7/8 „ | 27.55 |

| 3 „ | 30.00 |

| 3-1/8 „ | 32.55 |

| 3-1/4 „ | 35.21 |

| 3-3/8 „ | 37.97 |

| 3-1/2 „ | 40.83 |

| 3-5/8 „ | 43.80 |

| 3-3/4 „ | 46.88 |

| 3-7/8 „ | 50.05 |

| 4 „ | 53.33 |

| 4-1/8 „ | 56.72 |

| 4-1/4 „ | 60.21 |

| 4-3/8 „ | 63.80 |

| 4-1/2 „ | 67.50 |

| 4-5/8 „ | 71.30 |

| 4-3/4 „ | 75.21 |

| 4-7/8 „ | 79.22 |

| 5 „ | 83.33 |

| 5-1/8 „ | 87.55 |

| 5-1/4 „ | 91.88 |

| 5-3/8 „ | 96.30 |

| 5-1/2 „ | 100.80 |

| 5-5/8 „ | 105.50 |

| 5-3/4 „ | 110.20 |

| 5-7/8 „ | 115.10 |

| 6 „ | 120.00 |

Weight per Running Foot of Cast Steel.

-------------+------+--------------+------

SIZE. | LBS. | SIZE. | LBS.

-------------+------+--------------+------

1/4 in. Sq.| .213| 1/4 in. Rd. | .167

1/2 „ „ | .855| 1/2 „ „ | .669

3/4 „ „ | 1.91 | 3/4 „ „ | 1.50

1 „ „ | 3.40 |1 „ „ | 2.67

1-1/4 „ „ | 5.32 |1-1/4 „ „ | 4.18

1-1/2 „ „ | 7.67 |1-1/2 „ „ | 6.02

2 „ „ |13.63 |2 „ „ |10.71

-------------+------+--------------+------

1 × 1/4 | .852| 1/2 in. Oct.| .745

1-1/8 × 3/8 | 1.43 | 5/8 „ „ | 1.16

1-1/4 × 1/2 | 2.13 | 3/4 „ „ | 1.67

1-1/2 × 5/8 | 3.19 | 7/8 „ „ | 2.28

1-3/4 × 3/4 | 4.46 |1 „ „ | 2.98

2 × 1/2 | 3.40 |1-1/8 „ „ | 3.77

„ × 5/8 | 4.25 |1-1/4 „ „ | 4.65

Comparison of Principal Gauges in use.

-------+-------------------+-------------------+-------------------

| UNITED STATES | STUBBS’ | BROWN & SHARP.

| STANDARD. | BIRMINGHAM. |

+--------+----------+--------+----------+--------+----------

Number.| | Pounds | | Pounds | | Pounds

| 1000’s |per square| 1000’s |per square| 1000’s |per square

| of | foot. | of | foot. | of | foot.

|an inch.| |an inch.| |an inch.|

| | IRON. | | IRON. | | IRON.

-------+--------+----------+--------+----------+--------+----------

No. 1 | .281 | 11.25 | .300 | 12.04 | .289 | 11.61

„ 2 | .265 | 10.62 | .284 | 11.40 | .257 | 10.34

„ 3 | .250 | 10. | .259 | 10.39 | .229 | 9.21

„ 4 | .234 | 9.37 | .238 | 9.55 | .204 | 8.20

„ 5 | .218 | 8.75 | .220 | 8.83 | .181 | 7.30

„ 6 | .203 | 8.12 | .203 | 8.15 | .162 | 6.50

„ 7 | .187 | 7.50 | .180 | 7.22 | .144 | 5.79

„ 8 | .171 | 6.87 | .165 | 6.62 | .128 | 5.16

„ 9 | .156 | 6.25 | .148 | 5.94 | .114 | 4.59

„ 10 | .140 | 5.62 | .134 | 6.38 | .102 | 4.09

„ 11 | .125 | 5.00 | .120 | 4.82 | .091 | 3.64

„ 12 | .109 | 4.37 | .109 | 4.37 | .080 | 3.24

„ 13 | .093 | 3.75 | .095 | 3.81 | .072 | 2.89

„ 14 | .078 | 3.12 | .083 | 3.33 | .064 | 2.57

„ 15 | .070 | 2.81 | .072 | 2.89 | .057 | 2.29

„ 16 | .062 | 2.50 | .065 | 2.61 | .050 | 2.04

„ 17 | .056 | 2.25 | .058 | 2.33 | .045 | 1.82

„ 18 | .050 | 2.00 | .049 | 1.97 | .040 | 1.62

„ 19 | .043 | 1.75 | .042 | 1.69 | .036 | 1.44

„ 20 | .037 | 1.50 | .035 | 1.40 | .032 | 1.28

„ 21 | .034 | 1.37 | .032 | 1.28 | .028 | 1.14

„ 22 | .031 | 1.25 | .028 | 1.12 | .025 | 1.02

„ 23 | .028 | 1.12 | .025 | 1.00 | .022 | .90

„ 24 | .025 | 1.00 | .022 | .88 | .020 | .80

„ 25 | .021 | .87 | .020 | .80 | .018 | .72

„ 26 | .018 | .75 | .018 | .72 | .016 | .64

„ 27 | .017 | .68 | .016 | .64 | .014 | .57

„ 28 | .015 | .62 | .014 | .56 | .012 | .50

„ 29 | .014 | .56 | .013 | .52 | .011 | .45

„ 30 | .012 | .50 | .012 | .48 | .010 | .40

Maxims and Instructions for the Boiler Room Useful to Engineers, Firemen & Mechanics; Relating to Steam Generators, Pumps, Appliances, Steam Heating, Practical Plumbing, etc. · 第 253 / 328 题