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弹簧扁钢尺寸(GB/T 1222—1984) mm |
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平面弹簧扁钢截面 |
单面双槽弹簧扁钢截面 R≈1/2H;r=2~3mm;图中列出的R、r、b、b1、α 只在孔型上控制,不作为验收条件 |
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宽 度 B |
厚 度 H |
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5 |
6 |
(6.5) |
7 |
8 |
9 |
(9.5) |
10 |
11 |
12 |
(13) |
14 |
16 |
18 |
20 |
25 |
30 |
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平 面 扁 钢 |
45 |
× |
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× |
× |
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× |
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50 |
× |
× |
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× |
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× |
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55 |
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× |
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× |
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× |
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60 |
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× |
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× |
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× |
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(63) |
× |
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× |
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× |
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× |
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× |
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65 |
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× |
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× |
× |
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× |
× |
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70 |
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× |
× |
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× |
× |
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× |
× |
× |
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75 |
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× |
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× |
× |
× |
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× |
× |
× |
× |
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(76) |
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× |
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× |
× |
× |
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80 |
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× |
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× |
× |
× |
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90 |
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× |
× |
× |
× |
× |
× |
× |
× |
× |
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100 |
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× |
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× |
× |
× |
× |
× |
× |
× |
× |
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120 |
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× |
× |
× |
× |
× |
× |
× |
× |
× |
× |
× |
× |
× |
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140 |
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× |
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× |
× |
× |
× |
× |
× |
× |
× |
× |
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160 |
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× |
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× |
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× |
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× |
× |
× |
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单面双槽扁钢 |
75 |
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× |
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× |
× |
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厚 度 偏 差 |
宽度≤50 |
±0.15 |
±0.18 |
±0.20 |
— |
— |
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宽度>50~100 |
±0.18 |
±0.20 |
±0.25 |
+0.25 -0.30 |
— |
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宽度>100 |
±0.30 |
±0.35 |
±0.35 |
±0.40 |
±0.4 |
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注:1.带“×”表示属于本标准的品种。 2.带括号的尺寸不推荐使用。 3.长度为2~6m。 4.平面扁钢宽度偏差及单面双槽扁钢的尺寸偏差见原标准。 5.热轧弹簧扁钢的钢号和化学成分、力学性能应符合原标准的规定。(见表弹簧钢的化学成分和力学性能)。 |
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