JIS G 3466 Carbon Steel Tubes Manufacturer and Supplier – Brisk Steel
| Standard | JIS G 3466 |
| Material | Carbon steel Square and Rectangular tubes |
| Process | ERW and Seamless into square tubes. |
| Shape | Square or Rectangular |
| Grade | STKR 400, STKR 490 |
| Surface | Galvanized, Painted |
| Appliance | General structural and civil engineering architecture and other sturctures |
What is the JIS G 3466 ?
JIS G3466 this standard specifically covers carbon steel tubes for general structural purposes that are typically formed by a cold-forming process and subsequently electric resistance welded (ERW). These sections are supplied in the as-rolled condition without heat treatment unless otherwise specified.
Notes: The JIS G3466 standard is a Japanese Industrial Standard that specifies the requirements for carbon steel square and rectangular tubes intended for general structural purposes.
Designation
- ST: Steel Tube
- K: Kaku (Japanese for "square/angle")
- R: the designation for structural purposes
- Number: Indicates the minimum tensile strength (N/mm²) of the material.
Chemical Composition
| Chemical composition % | |||||
| Symbol of grade | C | Si | Mn | P | S |
| STKR400 | 0.25 max. | 一 | 一 | 0.040 max. | 0.040 max. |
| STKR490 | 0.18max. | 0.55 max. | 1.65 max. | 0.035max. | 0.035 max. |
| Alloy elements not included in this table and elements indicated with"一"may be added as necessary. | |||||
Mechanical Properties
| Mechanical Properties | ||||
| Symbol of grade | Tensile strength N/mm² |
Yield point or proof stress a) N/mm² |
Elongation % |
|
| Tensile test piece | Test direction | |||
| Test piece No.5 | Tube axis direction | |||
| STKR400 | 400 min. | 245 min. | 23 min. | |
| STKR490 | 490 min. | 325 min. | 23 min. | |
|
1.When the tube under 8 mm in thickness is subjected to tensile test, the minimum value of elongation shall be calculated by subtracting 1.5 % from the value of elongation given in Table 3-2 for each decrease of 1 mm and rounding off the result to a whole number according to JIS Z 8401.
2. When a tensile test piece is to be taken from the welded steel square tube, one shall be taken from a seamless portion. |
||||
Dimensions, Mass and Dimensional Tolerances
Tolerance On Dimension and Weight
The dimensions and mass of square tubes shall be as given in Attached Table. However, the standard radius of curvature at corner shall be 1.5 of wall thickness on the center line of the wall thickness.
Dimensional Tolerances
The tolerances on side length, unevenness of flat plate portion for each side, angularity made between adjacent flat plate portions, dimension at corner, length, unstraightness and wall thickness for square tubes shall be as given in Table . In this case, the measurement of dimensions of sectional profile and angle at corner shall be made at any point except both ends of the square tube.
| Speclfied item and dimension | Dimensional tolerances | ||
| Length of side | ≤100 mm | ±1.5mm | |
| >100 mm | ±1.5% | ||
| Unevenness of flat plate portion of each side |
Side length ≤100 mm | 0.5 mm max | |
| Side length >100 mm | Within 0.5%of side length | ||
| Anguiarity made by adfacent flat plate portions | ±1.5% | ||
| Dimension at corner:s | 3mm max | ||
| Length | +not specifird 0 | ||
| Unstraightness | Within 0.3%of side length | ||
| Wall thickness | Square steel tube manufactured by welding | <3mm | ±0.3mm |
| ≥3mm | ±10% | ||
| Seamless square steel tube | <4mm | ±0.6mm | |
| ≥4mm | ±15% | ||
Notes:
1. The "flat plate portion" is defined as the hatched portion shown in the figure below.
2. The tolerances on the dimensions at corner may be altered by agreement between the purchaser and the manufacturer.
3. The tolerances on unstraightness shall be applied to the upper to lower bend and the right to left bend with a long pitch.
4. The tolerances on wall thickness shall be applied to the flat plate portion.
Dimension and Mass of Carbon Steel Square Pipes for General Structural Purposes
| Dimensions of tubes (square) | ||||||
| Side length A×B mm |
Wall thickness t mm |
Unit mass kg/m |
Informative reference | |||
| Cross Sectional area) cm² |
Geometrical moment of inertia | modulus of Section | Radius of gyration of section |
|||
| cm4 | cm3 | cm | ||||
| Ix , Iy | Zx , Zy | Ix , Iy | ||||
| 40×40 | 1.6 | 1.88 | 2.392 | 5.79 | 2.90 | 1.56 |
| 40×40 | 2.3 | 2.62 | 3.332 | 7.73 | 3.86 | 1.52 |
| 50×50 | 1.6 | 2.38 | 3.032 | 11.7 | 4.68 | 1.96 |
| 50×50 | 2.3 | 3.34 | 4.252 | 15.9 | 6.34 | 1.93 |
| 50×50 | 3.2 | 4.50 | 5.727 | 20.4 | 8.16 | 1.89 |
| 60×60 | 1.6 | 2.88 | 3.672 | 20.7 | 6.89 | 2.37 |
| 60×60 | 2.3 | 4.06 | 5.172 | 28.3 | 9.44 | 2.34 |
| 60×60 | 3.2 | 5.50 | 7.007 | 36.9 | 12.3 | 2.30 |
| 75×75 | 1.6 | 3.64 | 4.632 | 41.3 | 11.0 | 2.99 |
| 75×75 | 2.3 | 5.14 | 6.552 | 57.1 | 15.2 | 2.95 |
| 75×75 | 3.2 | 7.01 | 8.927 | 75.5 | 20.1 | 2.91 |
| 75×75 | 4.5 | 9.55 | 12.17 | 98.6 | 26.3 | 2.85 |
| 80×80 | 2.3 | 5.50 | 7.012 | 69.9 | 17.5 | 3.16 |
| 80×80 | 3.2 | 7.51 | 9.567 | 92.7 | 23.2 | 3.11 |
| 80×80 | 4.5 | 10.3 | 13.07 | 122 | 30.4 | 3.05 |
| 90×90 | 2.3 | 6.23 | 7.932 | 101 | 22.4 | 3.56 |
| 90×90 | 3.2 | 8.51 | 10.85 | 135 | 29.9 | 3.52 |
| 100×100 | 2.3 | 6.95 | 8.852 | 140 | 27.9 | 3.97 |
| 100×100 | 3.2 | 9.52 | 12.13 | 187 | 37.5 | 3.93 |
| 100×100 | 4.0 | 11.7 | 14.95 | 226 | 45.3 | 3.89 |
| 100×100 | 4.5 | 13.1 | 16.67 | 249 | 49.9 | 3.87 |
| 100×100 | 6.0 | 17.0 | 21.63 | 311 | 62.3 | 3.79 |
| 100×100 | 9.0 | 24.1 | 30.67 | 408 | 81.6 | 3.65 |
| 100×100 | 12.0 | 30.2 | 38.53 | 471 | 94.3 | 3.50 |
| 125×125 | 3.2 | 12.0 | 15.33 | 376 | 60.1 | 4.95 |
| 125×125 | 4.5 | 16.6 | 21.17 | 506 | 80.9 | 4.89 |
| 125×125 | 5.0 | 18.3 | 23.36 | 553 | 88.4 | 4.86 |
| 125×125 | 6.0 | 21.7 | 27.63 | 641 | 103 | 4.82 |
| 125×125 | 9.0 | 31.1 | 39.67 | 865 | 138 | 4.67 |
| 125×125 | 12.0 | 39.7 | 50.53 | 103×10 | 165 | 4.52 |
| 150×150 | 4.5 | 20.1 | 25.67 | 896 | 120 | 5.91 |
| 150×150 | 5.0 | 22.3 | 28.36 | 982 | 131 | 5.89 |
| 150×150 | 6.0 | 26.4 | 33.63 | 115×10 | 153 | 5.84 |
| 150×150 | 9.0 | 38.2 | 48.67 | 158×10 | 210 | 5.69 |
| 175×175 | 4.5 | 23.7 | 30.17 | 145×10 | 166 | 6.93 |
| 175×175 | 5.0 | 26.2 | 33.36 | 159×10 | 182 | 6.91 |
| 175×175 | 6.0 | 31.1 | 39.63 | 186×10 | 213 | 6.86 |
| 200×200 | 4.5 | 27.2 | 34.67 | 219×10 | 219 | 7.95 |
| 200×200 | 6.0 | 35.8 | 45.63 | 283×10 | 283 | 7.88 |
| 200×200 | 8.0 | 46.9 | 59.79 | 362×10 | 362 | 7.78 |
| 200×200 | 9.0 | 52.3 | 66.67 | 399×10 | 399 | 7.73 |
| 200×200 | 12.0 | 67.9 | 86.53 | 498×10 | 498 | 7.59 |
| 250×250 | 5.0 | 38.0 | 48.36 | 481×10 | 384 | 9.97 |
| 250×250 | 6.0 | 45.2 | 57.63 | 567×10 | 454 | 9.92 |
| 250×250 | 8.0 | 59.5 | 75.79 | 732×10 | 585 | 9.82 |
| 250×250 | 9.0 | 66.5 | 84.67 | 809×10 | 647 | 9.78 |
| 250×250 | 12.0 | 86.8 | 110.50 | 103×102 | 820 | 9.63 |
| 300×300 | 4.5 | 41.3 | 52.67 | 763×10 | 508 | 12.00 |
| 300×300 | 6.0 | 54.7 | 69.63 | 996×10 | 664 | 12.00 |
| 300×300 | 9.0 | 80.6 | 102.70 | 143×102 | 956 | 11.80 |
| 300×300 | 12.0 | 106.0 | 134.50 | 183×102 | 122×10 | 11.70 |
| 350×350 | 9.0 | 94.7 | 120.70 | 232×102 | 132×10 | 13.90 |
| 350×350 | 12.0 | 124.0 | 158.50 | 298×102 | 170×10 | 13.70 |
|
1. Dimensions other than those listed in the above table if particularly required shall be agreed upon by the purchaser and the manufacturer.
2.The symbols in this table are as follows.
W=0.0157 t (A+B-3.287 г) where
|
||||||
Dimension and Mass of Carbon Steel Rectangular Pipes for General Structural Purposes
| Dimensions of tubes (rectangular) | |||||||||
| Side length A×B mm |
Wall thick- ness t mm |
Unit
|
Informative reference | ||||||
| Cross Sectional area) |
Geometrical moment of inertia | modulus of Section | Radius of gyra tion of cross-section a) |
||||||
| cm² | Cm4 | Cm3 | cm | ||||||
| Ix | Iy | Zx | Zy | Ix | Iy | ||||
| 50×20 | 1.6 | 1.63 | 2.072 | 6.08 | 1.42 | 2.43 | 1.42 | 1.71 | 0.829 |
| 50×20 | 2.3 | 2.25 | 2.872 | 8.00 | 1.83 | 3.20 | 1.83 | 1.67 | 0.798 |
| 50×30 | 1.6 | 1.88 | 2.392 | 7.96 | 3.60 | 3.18 | 2.40 | 1.82 | 1.23 |
| 50×30 | 2.3 | 2.62 | 3.332 | 10.6 | 4.76 | 4.25 | 3.17 | 1.79 | 1.20 |
| 60×30 | 1.6 | 2.13 | 2.712 | 12.5 | 4.25 | 4.16 | 2.83 | 2.15 | 1.25 |
| 60×30 | 2.3 | 2.98 | 3.792 | 16.8 | 5.65 | 5.61 | 3.76 | 2.11 | 1.22 |
| 60×30 | 3.2 | 3.99 | 5.087 | 21.4 | 7.08 | 7.15 | 4.72 | 2.05 | 1.18 |
| 75×20 | 1.6 | 2.25 | 2.872 | 17.6 | 2.10 | 4.69 | 2.10 | 2.47 | 0.855 |
| 75×20 | 2.3 | 3.16 | 4.022 | 23.7 | 2.73 | 6.31 | 2.73 | 2.43 | 0.824 |
| 75×45 | 1.6 | 2.88 | 3.672 | 28.4 | 12.9 | 7.56 | 5.75 | 2.78 | 1.88 |
| 75×45 | 2.3 | 4.06 | 5.172 | 38.9 | 17.6 | 10.4 | 7.82 | 2.74 | 1.84 |
| 75×45 | 3.2 | 5.50 | 7.007 | 50.8 | 22.8 | 13.5 | 10.1 | 2.69 | 1.80 |
| 80×40 | 1.6 | 2.88 | 3.672 | 30.7 | 10.5 | 7.68 | 5.26 | 2.89 | 1.69 |
| 80×40 | 2.3 | 4.06 | 5.172 | 42.1 | 14.3 | 10.5 | 7.14 | 2.85 | 1.66 |
| 80×40 | 3.2 | 5.50 | 7.007 | 54.9 | 18.4 | 13.7 | 9.21 | 2.80 | 1.62 |
| 90×45 | 2.3 | 4.60 | 5.862 | 61.0 | 20.8 | 13.6 | 9.22 | 3.23 | 1.88 |
| 90×45 | 3.2 | 6.25 | 7.967 | 80.2 | 27.0 | 17.8 | 12.0 | 3.17 | 1.84 |
| 100×20 | 1.6 | 2.88 | 3.672 | 38.1 | 2.78 | 7.61 | 2.78 | 3.22 | 0.870 |
| 100×20 | 2.3 | 4.06 | 5.172 | 51.9 | 3.64 | 10.4 | 3.64 | 3.17 | 0.839 |
| 100×40 | 1.6 | 3.38 | 4.312 | 53.5 | 12.9 | 10.7 | 6.44 | 3.52 | 1.73 |
| 100×40 | 2.3 | 4.78 | 6.092 | 73.9 | 17.5 | 14.8 | 8.77 | 3.48 | 1.70 |
| 100×40 | 4.2 | 8.32 | 10.60 | 120 | 27.6 | 24.0 | 13.8 | 3.36 | 161 |
| 100×50 | 1.6 | 3.64 | 4.632 | 61.3 | 21.1 | 12.3 | 8.43 | 3.64 | 2.13 |
| 100×50 | 2.3 | 5.14 | 6.552 | 84.8 | 29.0 | 17.0 | 11.6 | 3.60 | 2.10 |
| 100×50 | 3.2 | 7.01 | 8.927 | 112 | 38.0 | 22.5 | 15.2 | 3.55 | 2.06 |
| 100×50 | 4.5 | 9.55 | 12.17 | 147 | 48.9 | 29.3 | 19.5 | 3.47 | 2.00 |
| 125×40 | 1.6 | 4.01 | 5.112 | 94.4 | 15.8 | 15.1 | 7.91 | 4.30 | 1.76 |
| 125×40 | 2.3 | 5.69 | 7.242 | 131 | 21.6 | 20.9 | 10.8 | 4.25 | 1.73 |
| 125×75 | 2.3 | 6.95 | 8.852 | 192 | 87.5 | 30.6 | 23.3 | 4.65 | 3.14 |
| 125×75 | 3.2 | 9.52 | 12.13 | 257 | 117 | 41.1 | 31.1 | 4.60 | 3.10 |
| 125×75 | 4.0 | 11.7 | 14.95 | 311 | 141 | 49.7 | 37.5 | 4.56 | 3.07 |
| 125×75 | 4.5 | 13.1 | 16.67 | 342 | 155 | 54.8 | 41.2 | 4.53 | 3.04 |
| 125×75 | 6.0 | 17.0 | 21.63 | 428 | 192 | 68.5 | 51.1 | 4.45 | 2.98 |
| 150×75 | 3.2 | 10.8 | 13.73 | 402 | 137 | 53.6 | 36.6 | 5.41 | 3.16 |
| 150×80 | 4.5 | 15.2 | 19.37 | 563 | 211 | 75.0 | 52.9 | 5.39 | 3.30 |
| 150×80 | 5.0 | 16.8 | 21.36 | 614 | 230 | 81.9 | 57.5 | 5.36 | 3.28 |
| 150×80 | 6.0 | 19.8 | 25.23 | 710 | 264 | 94.7 | 66.1 | 5.31 | 3.24 |
| 150×100 | 3.2 | 12.0 | 15.33 | 488 | 262 | 65.1 | 52.5 | 5.64 | 4.14 |
| 150×100 | 4.5 | 16.6 | 21.17 | 658 | 352 | 87.7 | 70.4 | 5.58 | 4.08 |
| 150×100 | 6.0 | 21.7 | 27.63 | 835 | 444 | 111 | 88.8 | 5.50 | 4.01 |
| 150×100 | 9.0 | 31.1 | 39.67 | 113×10 | 595 | 151 | 119 | 5.33 | 3.87 |
| 200×100 | 4.5 | 20.1 | 25.67 | 133×10 | 455 | 133 | 90.9 | 7.20 | 4.21 |
| 200×100 | 6.0 | 26.4 | 33.63 | 170×10 | 577 | 170 | 115 | 7.12 | 4.14 |
| 200×100 | 9.0 | 38.2 | 48.67 | 235×10 | 782 | 235 | 156 | 6.94 | 4.01 |
| 200×150 | 4.5 | 23.7 | 30.17 | 176×10 | 113×10 | 176 | 151 | 7.64 | 6.13 |
| 200×150 | 6.0 | 31.1 | 39.63 | 227×10 | 146×10 | 227 | 194 | 7.56 | 6.06 |
| 200×150 | 9.0 | 45.3 | 57.67 | 317×10 | 202×10 | 317 | 270 | 7.41 | 5.93 |
| 250×150 | 6.0 | 35.8 | 45.63 | 389×10 | 177×10 | 311 | 236 | 9.23 | 6.23 |
| 250×150 | 9.0 | 52.3 | 66.67 | 548×10 | 247×10 | 438 | 330 | 9.06 | 6.09 |
| 250×150 | 12.0 | 67.9 | 86.53 | 685×10 | 307×10 | 548 | 409 | 8.90 | 5.95 |
| 300×200 | 6.0 | 45.2 | 57.63 | 737×10 | 396×10 | 491 | 396 | 11.3 | 8.29 |
| 300×200 | 9.0 | 66.5 | 84.67 | 105×102 | 563×10 | 702 | 563 | 11.2 | 8.16 |
| 300×200 | 12.0 | 86.8 | 110.5 | 134×102 | 711×10 | 890 | 711 | 11.0 | 8.02 |
| 350×150 | 6.0 | 45.2 | 57.63 | 891×10 | 239×10 | 509 | 319 | 12.4 | 6.44 |
| 350×150 | 9.0 | 66.5 | 84.67 | 127×102 | 337×10 | 726 | 449 | 12.3 | 6.31 |
| 350×150 | 12.0 | 86.8 | 110.5 | 161×102 | 421×10 | 921 | 562 | 12.1 | 6.17 |
| 400×200 | 6.0 | 54.7 | 69.63 | 148×102 | 509×10 | 739 | 509 | 14.6 | 8.55 |
| 400×200 | 9.0 | 80.6 | 102.7 | 213×102 | 727×10 | 107×10 | 727 | 14.4 | 8.42 |
| 400×200 | 12.0 | 106 | 134.5 | 273×102 | 923×10 | 136×10 | 923 | 14.2 | 8.28 |
|
1. Dimensions other than those listed in the above table if particularly required shall be agreed upon by the purchaser and the manufacturer.
2. The symbols in this table are as follows.
3. Calculate the values of mass from the following formula assuming 1 cm³ of steel to be 7.85 g and round off the result to three significant figures in accordance with JIS Z 8401. W=0.0157 t (A+B-3.287 г) where
|
|||||||||
Contact US
BRISK STEEL is a focus on hollow sections manufacturer and suppliers has perfect production equipment and production lines, mostly using a variety of production technologies such as ERW, LSAW, SEAMLESS, etc., to manufacture various specifications of hollow section steel.
So contact us to get the latest price of JIS G 3466 Hollow Structral Section for free.