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60si2mn鋼管力學性能

更新時間:2020-03-26 11:23點擊次數:

60si2mn鋼管力學性能

鋼種

力學性能

冷拔(軋)管

金切管

20#

抗拉強度σbN/mm2

伸長率δ5%

≥510

≥390

≥5

≥20

45#

≥647

≥590

≥4

≥4

 

 

加工形式

缸徑

長度

直線度

尺寸精度

內孔粗糙度

冷軋

30-100

≤12M

0.3-1.0

H8-H10

0.4-1.6

冷拔

30-250

≤12M

H8-H10

0.8-1.6

珩磨

40-500

≤12M

1000

H8-H9

0.4-0.8

滾壓

40-400

≤7M

H8

0.4

尺寸公差

尺寸公差(壁厚偏差±5%)

內徑尺寸

H8

H9

H10

30

+0.033

0

+0.052

0

+0.084

0

>30-50

+0.039

0

+0.062

0

+0.100

0

>50-80

+0.046

0

+0.074

0

+0.120

0

>80-120

+0.054

0

+0.087

0

+0.140

0

>120-180

+0.063

0

+0.100

0

+0.160

0

>180-250

+0.072

0

+0.115

0

+0.185

0

>250-315

+0.081

0

+0.130

0

+0.210

0

>315-400

+0.089

0

+0.140

0

+0.230

0


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