钢型材
L 250x250x28
以下列出了来源目录中的尺寸和技术特性。
型材名称写法: L 250x250x28 · L250x250x28
- 目录
- L Equal (GOST 8509-93 Annex A)
- 标准
- GOST 8509-93 Annex A (ISO 657-1:1989)
- 来源出版物
- GOST 8509-93 Annex A (ISO 657-1:1989)
尺寸、重量和技术特性
| 特性 | 数值 | 单位 |
|---|---|---|
| g | 104 | kg/m |
| A | 13300 | mm² |
| h = b | 250 | mm |
| t | 28 | mm |
| r | 18 | mm |
| C_x = C_y [GOST] | 72.40 | mm |
| C_u [GOST] | 177.0 | mm |
| C_v [GOST] | 102.0 | mm |
| I_x = I_y [GOST] | 77.00 | 10⁶ mm⁴ |
| r_x = r_y [GOST] | 76.20 | mm |
| Z_x = Z_y [GOST] | 433 | 10³ mm³ |
| I_u [GOST] | 122.00 | 10⁶ mm⁴ |
| r_u [GOST] | 96.10 | mm |
| I_v [GOST] | 31.70 | 10⁶ mm⁴ |
| r_v [GOST] | 48.90 | mm |
| Z_v [GOST] | 309 | 10³ mm³ |
来源说明与更正
gost:angleIu: The printed Iu values are approximately ten times lower than both A*ru^2 and Ix+Iy-Iv from the same rows. The comparison manufacturer's catalog lists 12200 and 14700 cm4 with matching dimensions, area, mass, Ix and Iv. Adopt the explicitly authorized catalog values, not recalculated values from rounded inputs.
来源原值: 1220
核实值: 12200
来源出版物Annex A prints Iu=1220 and 1470 cm4 for 250x250x28 and 250x250x35. Original cells retained; effective Iu corrected to 12200 and 14700 cm4 by explicit user instruction, supported by the comparison source in valueCorrections. This is not an official GOST corrigendum.
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