STANDARD JIS G 3444-2006 JAPANESE INDUSTRIAL STANDARD SPECIFIES

Carbon steel tubes for general structural purposes

STANDARD CHEMICAL   COMPOSITION MECHANICAL   PROPERTIES


Max%
Si

Max%
Mn

Max%
P

Max%
S

Max%
Yield  
Strength 
MPa
Tensile
Strength 
MPa
Elongation
min
No.12 test No.5 test
STK 290 - - - 0.050 0.050 - 290 30 25
STK 400 0.25 - - 0.040 0.040 235 400 23 18
STK 490 0.18 0.55 1.50 0.040 0.040 315 490 23 18
STK 500 0.24 0.35 0.30-1.30 0.040 0.040 355 500 15 19
STK 540 0.23 0.55 1.50 0.040 0.040 390 540 20 16

 

Outside diameter Wall
thickness
(t)

mm.
Unit
mass


kg/m
Informotive reference
Crosssection
area
cm²
Geometrical
momemt of innertia
cm4
Modulus
of section
cm³
Radius of
gyration of area
cm
in mm.
lx ly Zx Zy ix iy
1/2" 21.7 2.0 0.972 1.238 0.607 0.607 0.560 0.560 0.700 0.700
3/4" 27.2 2.0 1.24 1.583 1.26 1.26 0.930 0.930 0.890 0.890
    2.3 1.41 1.799 1.41 1.41 1.03 1.03 0.880 0.880
1" 34.0 2.3 1.80 2.291 2.89 2.89 1.70 1.70 1.12 1.12
1 1/4" 42.7 2.3 2.29 2.919 5.97 5.97 2.80 2.80 1.43 1.43
    2.5 2.48 3.157 6.4 6.4 3.00 3.00 1.42 1.42
1 1/2" 48.6 2.3 2.63 3.345 8.99 8.99 3.70 3.70 1.64 1.64
    2.5 2.84 3.621 9.65 9.65 3.97 3.97 1.63 1.63
    2.8 3.16 4.029 10.6 10.6 4.36 4.36 1.62 1.62
    3.2 3.58 4.564 11.8 11.8 4.86 4.86 1.61 1.61
2" 60.5 2.3 3.30 4.205 17.8 17.8 5.90 5.90 2.06 2.06
    3.2 4.52 5.76 23.7 23.7 7.84 7.84 2.03 2.03
    4.0 5.57 7.100 28.5 28.5 9.41 9.41 2.00 2.00
2 1/2" 76.3 2.8 5.08 6.465 43.7 43.7 11.5 11.5 2.60 2.60
    3.2 5.77 7.349 49.2 49.2 12.9 12.9 2.59 2.59
    4.0 7.13 9.085 59.5 59.5 15.6 15.6 2.58 2.58
3" 89.1 2.8 5.96 7.591 70.7 70.7 15.9 15.9 3.05 3.05
    3.2 6.78 8.636 79.8 79.8 17.9 17.9 3.04 3.04
3 1/2" 101.6 3.2 7.76 9.892 120 120 23.6 23.6 3.48 3.48
    4.0 9.63 12.26 146 146 28.8 28.8 3.45 3.45
    5.0 11.9 15.17 177 177 34.9 34.9 3.42 3.42
4" 114.3 3.2 8.77 11.17 172 172 30.2 30.2 3.93 3.93
    3.5 9.58 12.18 187 187 32.7 32.7 3.92 3.92
    4.5 12.2 15.52 234 234 41.0 41.0 3.89 3.89
5" 139.8 3.6 12.1 15.40 357 357 51.1 51.1 4.82 4.82
    4.0 13.4 17.07 394 394 56.3 56.3 4.80 4.80
    4.5 15.02 19.13 438 438 62.7 62.7 4.79 4.79
    6.0 19.80 25.22 566 566 80.9 80.9 4.74 4.74
6" 165.2 4.5 17.8 22.72 734 734 88.9 88.9 5.68 5.68
    5.0 19.8 25.16 808 808 97.8 97.8 5.67 5.67
    6.0 23.6 30.01 952 952 115 115 5.63 5.63
    7.1 27.7 35.26 1100 1100 134 134 5.60 5.60
8" 216.3 4.5 23.5 29.94 1680 1680 155 155 7.49 7.49
    5.8 30.1 38.36 2130 2130 197 197 7.45 7.45
    6.0 31.1 39.64 2190 2190 203 203 7.44 7.44
    7.0 36.1 46.03 2520 2520 233 233 7.40 7.40
    8.0 41.1 52.35 2840 2840 263 263 7.37 7.37
    8.2 42.1 53.61 2910 2910 269 269 7.36 7.36
10" 267.4 6.0 38.7 49.27 4210 4210 315 315 9.24 9.24
    6.6 42.4 54.08 4600 4600 344 344 9.22 9.22
    7.0 45.0 57.26 2860 2860 363 363 9.21 9.21
    8.0 51.2 65.19 5490 5490 411 411 9.18 9.18
    9.0 57.3 73.06 6110 6110 457 457 9.14 9.14
    9.3 59.2 75.41 6290 6290 470 470 9.13 9.13
12" 318.5 6.0 46.2 58.91 7190 7190 452 452 11.1 11.1
    6.9 53.0 67.55 8200 8200 515 515 11.0 11.0
    8.0 61.3 78.04 9410 9410 591 591 11.0 11.0
    9.0 68.7 87.51 10500 10500 659 659 10.9 10.9
    10.3 78.3 99.73 11900 11900 744 744 10.9 10.9
14" 355.6 6.4 55.1 70.21 10700 10700 602 602 12.3 12.3
    7.9 67.7 86.29 13000 13000 734 734 12.3 12.3
    9.0 76.9 98.00 14700 14700 828 828 12.3 12.3
    9.5 81.1 103.3 15500 15500 871 871 12.2 12.2
    12.0 102 129.5 19100 19100 1080 1080 12.2 12.2
    12.7 107 136.8 20100 20100 1130 1130 12.1 12.1
16" 406.4 7.9 77.6 98.90 19600 19600 967 967 14.1 14.1
    9.0 88.2 112.4 22200 22200 1090 1090 14.1 14.1
    9.5 93.0 118.5 23300 23300 1150 1150 14.0 14.0
    12.0 11.7 148.7 28900 28900 1420 1420 14.0 14.0
    12.7 123 157.1 30500 30500 1500 1500 13.9 13.9
    16.0 154 196.2 37400 37400 1840 1840 13.8 13.8
18" 457.2 9.0 99.5 126.7 31800 31800 1400 1400 15.8 15.8
    9.5 105 133.6 33500 33500 1470 1470 15.8 15.8
    12.0 132 167.8 41600 41600 1820 1820 15.7 15.7
    12.7 139 177.3 43800 43800 1920 1920 15.7 15.7
    16.0 174 221.8 54000 54000 2360 2360 15.6 15.6