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Channel steel is a long strip of steel with a groove-shaped cross-section. It belongs to carbon structural steel for construction and machinery. It is a section steel with a complex cross-section. Cold-formed equal-edge channel steel, cold-formed unequal-edge channel steel, cold-formed inner-curled channel steel, cold-formed outer-curled channel steel. . Channel steel is mainly used in building structure, curtain wall engineering, mechanical equipment and vehicle manufacturing, etc. Channel steel is often used in conjunction with I-beam.
Channel steel is required to have good welding, riveting performance and comprehensive mechanical properties in use. The raw material billet for producing channel steel is carbon structural steel or low alloy steel billet with carbon content not exceeding 0.25%. The finished channel steel is delivered in the state of hot forming, normalizing or hot rolling. Its specifications are expressed in millimeters of waist height (h) * leg width (b) * waist thickness (d), such as 100*48*5.3, which means that the waist height is 100 mm, the leg width is 48 mm, and the waist thickness is 5.3 mm. steel.
Height h ±1.5 ±2.0 ±2.0 ±3.0 ±3.0
Leg width b ±1.5 ±2.0 ±2.5 ±3.0 ±3.5
Waist thickness d ±0.4 ±0.5 ±0.6 ±0.7 ±0.8
The bending deflection should not exceed 0.15d
Usually length 5 ~ 12m 5 ~ 19m 6 ~ 19m
SPECIFICATIONS FOR CHANNEL STEEL | ||
Product | channel steel | |
Standard | ASTM,BS,GB,JIS,etc | |
Grade | SS400, ST37-2, A36, S235JRG1, Q235, Q345 etc | |
Product Keywords | c channel for building | |
Manufacturing technique | Hot rolled(elementary) Can be processed again repeatedly | |
Strength of extension | A36/420MPa S355JR/485MPa | |
Technique | Hot Rolled or cold rolled | |
Delivery Time | 10~20days | |
Shipping | 1)Shipping by containers | |
| Standard cross-section dimensions（mm） | Cross-sectional area (cm2） | Unit mass (kg/m) | ||||
|---|---|---|---|---|---|---|
| H×B | t1 | t2 | r1 | r2 | ||
| 150×75 150×75 | 6.5 9.0 | 10.0 12.5 | 10.0 15.0 | 5.0 7.5 | 23.71 30.59 | 18.60 24.00 |
| *180×75 | 7.0 | 10.5 | 11.0 | 5.5 | 27.20 | 21.40 |
| 200×80 200×90 | 7.5 8.0 | 11.0 13.5 | 12.0 14.0 | 6.0 7.0 | 31.33 38.65 | 24.60 30.30 |
| 250×90 250×90 | 9.0 11.0 | 13.0 14.5 | 14.0 17.0 | 7.0 8.5 | 44.07 51.17 | 34.60 40.20 |
| 300×90 300×90 300×90 | 9.0 10.0 12.0 | 13.0 15.5 16.0 | 14.0 19.0 19.0 | 7.0 9.5 9.5 | 48.57 55.74 61.90 | 38.10 43.80 48.60 |
| 380×100 380×100 | 10.5 13.0 | 16.0 20.0 | 18.0 24.0 | 9.0 12.0 | 69.39 85.71 | 54.50 67.30 |
| Reference | |||||
|---|---|---|---|---|---|
| Second moment of area（cm4） | Radius of gyration of area（cm） | Section modulus（cm3） | |||
| lx | ly | ix | iy | zx | zy |
| 861 1,050 | 117 147 | 6.03 5.86 | 2.22 2.19 | 115 140 | 22.4 28.3 |
| 1,380 | 131 | 7.12 | 2.19 | 153 | 24.3 |
| 1,950 2,490 | 168 277 | 7.88 8.02 | 2.32 2.68 | 195 249 | 29.1 44.2 |
| 4,180 4,680 | 294 329 | 9.74 9.56 | 2.58 2.54 | 334 374 | 44.5 49.9 |
| 6,440 7,410 7,870 | 309 360 379 | 11.50 11.50 11.30 | 2.52 2.54 2.48 | 429 494 525 | 45.7 54.1 56.4 |
| 14,500 17,600 | 535 655 | 14.50 14.30 | 2.78 2.76 | 763 926 | 70.5 87.8 |
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