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Steel Section Index

Rectangular Bar Sections



Table of Dimensions + Properties


The table includes various useful properties of steel square bar.    The properties are based on the following

Density of mild steel = 7830 kg/m3
Second moment of Area( Ixx = Iyy ) for a square section =B.H3 /12 (Used for bending equations )

Note: The Second Moment of Area values listed are for B = 1mm. For other values of B simply multiply the values listed by B(mm).

Note: The mass properties provided can easily be converted to another material by mulipling the mass/mm by the ratio of the density of the chosen material to that of steel.

m copper = msteel . [ Densitycopper / Density steel ]

Example 50mm wide by 100 Deep (B= 50mm, H = 100mm)
CSA = 5000mm2 H.B
Weight/mm = 0,0391 kg/mm ( 0,000783*50 )
2nd M of Area (Ixx = Iyy )= 4.16 x 106 mm4 (83333.333*50



Depth Mass/mm Second Moment
of Area
of section		   Depth Mass/mm Second Moment
of Area
of section
Bending Calcs. Bending Calcs.
H m Ixx = Iyy B m Ixx = Iyy
mm kg/mm mm4 x 106 mm kg/mm mm4 x 106
5 0.000039 10.42 153 0.00120 298464.75
6 0.000047 18.00 154 0.00121 304355.33
7 0.000055 28.58 155 0.00121 310322.92
8 0.000063 42.67 156 0.00122 316368.00
9 0.000070 60.75 157 0.00123 322491.08
10 0.000078 83.33 158 0.00124 328692.67
11 0.000086 110.92 159 0.00124 334973.25
12 0.000094 144.00 160 0.00125 341333.33
13 0.000102 183.08 161 0.00126 347773.42
14 0.000110 228.67 162 0.00127 354294.00
15 0.000117 281.25 163 0.00128 360895.58
16 0.000125 341.33 164 0.00128 367578.67
17 0.000133 409.42 165 0.00129 374343.75
18 0.000141 486.00 166 0.00130 381191.33
19 0.000149 571.58 167 0.00131 388121.92
20 0.000157 666.67 168 0.00132 395136.00
21 0.000164 771.75 169 0.00132 402234.08
22 0.000172 887.33 170 0.00133 409416.67
23 0.000180 1013.92 171 0.00134 416684.25
24 0.000188 1152.00 172 0.00135 424037.33
25 0.000196 1302.08 173 0.00135 431476.42
26 0.000204 1464.67 174 0.00136 439002.00
27 0.000211 1640.25 175 0.00137 446614.58
28 0.000219 1829.33 176 0.00138 454314.67
29 0.000227 2032.42 177 0.00139 462102.75
30 0.000235 2250.00 178 0.00139 469979.33
31 0.000243 2482.58 179 0.00140 477944.92
32 0.000251 2730.67 180 0.00141 486000.00
33 0.000258 2994.75 181 0.00142 494145.08
34 0.000266 3275.33 182 0.00143 502380.67
35 0.000274 3572.92 183 0.00143 510707.25
36 0.000282 3888.00 184 0.00144 519125.33
37 0.000290 4221.08 185 0.00145 527635.42
38 0.000298 4572.67 186 0.00146 536238.00
39 0.000305 4943.25 187 0.00146 544933.58
40 0.000313 5333.33 188 0.00147 553722.67
41 0.000321 5743.42 189 0.00148 562605.75
42 0.000329 6174.00 190 0.00149 571583.33
43 0.000337 6625.58 191 0.00150 580655.92
44 0.000345 7098.67 192 0.00150 589824.00
45 0.000352 7593.75 193 0.00151 599088.08
46 0.000360 8111.33 194 0.00152 608448.67
47 0.000368 8651.92 195 0.00153 617906.25
48 0.000376 9216.00 196 0.00153 627461.33
49 0.000384 9804.08 197 0.00154 637114.42
50 0.000392 10416.67 198 0.00155 646866.00
Depth Mass/mm Second Moment
of Area
of section		 Depth Mass/mm Second Moment
of Area
of section
Bending Calcs. Bending Calcs.
H m Ixx = Iyy B m Ixx = Iyy
mm kg/mm mm4 x 106 mm kg/mm mm4 x 106
51 0.000399 11054.25 199 0.00156 656716.58
52 0.000407 11717.33 200 0.00157 666666.67
53 0.000415 12406.42 201 0.00157 676716.75
54 0.000423 13122.00 202 0.00158 686867.33
55 0.000431 13864.58 203 0.00159 697118.92
56 0.000438 14634.67 204 0.00160 707472.00
57 0.000446 15432.75 205 0.00161 717927.08
58 0.000454 16259.33 206 0.00161 728484.67
59 0.000462 17114.92 207 0.00162 739145.25
60 0.000470 18000.00 208 0.00163 749909.33
61 0.000478 18915.08 209 0.00164 760777.42
62 0.000485 19860.67 210 0.00164 771750.00
63 0.000493 20837.25 211 0.00165 782827.58
64 0.000501 21845.33 212 0.00166 794010.67
65 0.000509 22885.42 213 0.00167 805299.75
66 0.000517 23958.00 214 0.00168 816695.33
67 0.000525 25063.58 215 0.00168 828197.92
68 0.000532 26202.67 216 0.00169 839808.00
69 0.000540 27375.75 217 0.00170 851526.08
70 0.000548 28583.33 218 0.00171 863352.67
71 0.000556 29825.92 219 0.00171 875288.25
72 0.000564 31104.00 220 0.00172 887333.33
73 0.000572 32418.08 221 0.00173 899488.42
74 0.000579 33768.67 222 0.00174 911754.00
75 0.000587 35156.25 223 0.00175 924130.58
76 0.000595 36581.33 224 0.00175 936618.67
77 0.000603 38044.42 225 0.00176 949218.75
78 0.000611 39546.00 226 0.00177 961931.33
79 0.000619 41086.58 227 0.00178 974756.92
80 0.000626 42666.67 228 0.00179 987696.00
81 0.000634 44286.75 229 0.00179 1000749.08
82 0.000642 45947.33 230 0.00180 1013916.67
83 0.000650 47648.92 231 0.00181 1027199.25
84 0.000658 49392.00 232 0.00182 1040597.33
85 0.000666 51177.08 233 0.00182 1054111.42
86 0.000673 53004.67 234 0.00183 1067742.00
87 0.000681 54875.25 235 0.00184 1081489.58
88 0.000689 56789.33 236 0.00185 1095354.67
89 0.000697 58747.42 237 0.00186 1109337.75
90 0.000705 60750.00 238 0.00186 1123439.33
91 0.000713 62797.58 239 0.00187 1137659.92
92 0.000720 64890.67 240 0.00188 1152000.00
93 0.000728 67029.75 241 0.00189 1166460.08
94 0.000736 69215.33 242 0.00189 1181040.67
95 0.000744 71447.92 243 0.00190 1195742.25
96 0.000752 73728.00 244 0.00191 1210565.33
97 0.000760 76056.08 245 0.00192 1225510.42
98 0.000767 78432.67 246 0.00193 1240578.00
99 0.000775 80858.25 247 0.00193 1255768.58
100 0.000783 83333.33 248 0.00194 1271082.67
Depth Mass/mm Second Moment
of Area
of section		 Depth Mass/mm Second Moment
of Area
of section
Bending Calcs. Bending Calcs.
H m Ixx = Iyy B m Ixx = Iyy
101 0.000791 85858.42 249 0.00195 1286520.75
102 0.000799 88434.00 250 0.00196 1302083.33
103 0.000806 91060.58 251 0.00197 1317770.92
104 0.000814 93738.67 252 0.00197 1333584.00
105 0.000822 96468.75 253 0.00198 1349523.08
106 0.000830 99251.33 254 0.00199 1365588.67
107 0.000838 102086.92 255 0.00200 1381781.25
108 0.000846 104976.00 256 0.00200 1398101.33
109 0.000853 107919.08 257 0.00201 1414549.42
110 0.000861 110916.67 258 0.00202 1431126.00
111 0.000869 113969.25 259 0.00203 1447831.58
112 0.000877 117077.33 260 0.00204 1464666.67
113 0.000885 120241.42 261 0.00204 1481631.75
114 0.000893 123462.00 262 0.00205 1498727.33
115 0.000900 126739.58 263 0.00206 1515953.92
116 0.000908 130074.67 264 0.00207 1533312.00
117 0.000916 133467.75 265 0.00207 1550802.08
118 0.000924 136919.33 266 0.00208 1568424.67
119 0.000932 140429.92 267 0.00209 1586180.25
120 0.000940 144000.00 268 0.00210 1604069.33
121 0.000947 147630.08 269 0.00211 1622092.42
122 0.000955 151320.67 270 0.00211 1640250.00
123 0.000963 155072.25 271 0.00212 1658542.58
124 0.000971 158885.33 272 0.00213 1676970.67
125 0.000979 162760.42 273 0.00214 1695534.75
126 0.000987 166698.00 274 0.00215 1714235.33
127 0.000994 170698.58 275 0.00215 1733072.92
128 0.001002 174762.67 276 0.00216 1752048.00
129 0.001010 178890.75 277 0.00217 1771161.08
130 0.001018 183083.33 278 0.00218 1790412.67
131 0.001026 187340.92 279 0.00218 1809803.25
132 0.001034 191664.00 280 0.00219 1829333.33
133 0.001041 196053.08 281 0.00220 1849003.42
134 0.001049 200508.67 282 0.00221 1868814.00
135 0.001057 205031.25 283 0.00222 1888765.58
136 0.001065 209621.33 284 0.00222 1908858.67
137 0.001073 214279.42 285 0.00223 1929093.75
138 0.001081 219006.00 286 0.00224 1949471.33
139 0.001088 223801.58 287 0.00225 1969991.92
140 0.001096 228666.67 288 0.00226 1990656.00
141 0.001104 233601.75 289 0.00226 2011464.08
142 0.001112 238607.33 290 0.00227 2032416.67
143 0.001120 243683.92 291 0.00228 2053514.25
144 0.001128 248832.00 292 0.00229 2074757.33
145 0.001135 254052.08 293 0.00229 2096146.42
146 0.001143 259344.67 294 0.00230 2117682.00
147 0.001151 264710.25 295 0.00231 2139364.58
148 0.001159 270149.33 296 0.00232 2161194.67
149 0.001167 275662.42 297 0.00233 2183172.75
150 0.001175 281250.00 298 0.00233 2205299.33
151 0.001182 286912.58 299 0.00234 2227574.92
152 0.001190 292650.67 300 0.00235 2250000.00
H m Ixx = Iyy B m Ixx = Iyy
mm kg/mm mm4 x 106 mm kg/mm mm4 x 106


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Last Updated 13/07/2011