汽車半軸套管用無(wú)縫鋼管
汽車半軸用無(wú)縫鋼管(YB/T5035)
中國(guó)標(biāo)準(zhǔn):YB/T5035
鋼級(jí):45, 20Mn, 45Mn2, 40Mn13, 40Cr, 20CrNi3A
交貨狀態(tài):熱軋
規(guī)格范圍:外徑73MM-630MM ,壁厚4MM-35MM?
公差:按照GB/T17396-2009標(biāo)準(zhǔn)
所屬分類:
汽車半軸套管用無(wú)縫鋼管
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汽車半軸套管用無(wú)縫鋼管
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汽車半軸用無(wú)縫鋼管(YB/T5035)
中國(guó)標(biāo)準(zhǔn):YB/T5035
鋼級(jí):45, 20Mn, 45Mn2, 40Mn13, 40Cr, 20CrNi3A
交貨狀態(tài):熱軋
規(guī)格范圍:外徑73MM-630MM ,壁厚4MM-35MM
公差:按照GB/T17396-2009標(biāo)準(zhǔn)
長(zhǎng)度:按照訂貨要求
證書(shū):GB/T19001-2008
● 化學(xué)成分(熔煉分析)%
牌號(hào)
|
C
|
Si
|
Mn
|
Cr
|
Mo
|
B
|
Cu≤
|
Ni
|
P
|
≤
|
|||||||||
45
|
0.42-0.50
|
0.17-0.37
|
0.50-0.80
|
---
|
---
|
---
|
0.2
|
---
|
0.03
|
20 Mn
|
0.17-0.23
|
0.17-0.37
|
0.70-1.00
|
≤0.25
|
---
|
---
|
0.25
|
≤0.30
|
0.035
|
45 Mn2
|
0.42-0.49
|
0.17-0.37
|
1..40-1.80
|
---
|
---
|
---
|
0.2
|
---
|
0.03
|
40 Mn13
|
0.37-0.44
|
0.17-0.37
|
1.10-1.40
|
---
|
---
|
0.0005-0.0035
|
0.2
|
---
|
0.03
|
40 Cr
|
0.37-0.44
|
0.17-0.37
|
0.50-0.80
|
0.80-1.10
|
---
|
---
|
0.2
|
---
|
0.03
|
20 Cr Ni3A
|
0.17-0.24
|
0.17-0.37
|
0.30-0.60
|
---
|
---
|
---
|
---
|
2.75-3.15
|
0.03
|
● 機(jī)械性能
牌號(hào)
|
抗拉強(qiáng)度Mpa
|
屈服點(diǎn)Mpa
|
伸長(zhǎng)率%
|
布氏硬度HB
|
45
|
≥590
|
≥335
|
≥14
|
-
|
20 Mn
|
≥450
|
≥255
|
≥20
|
-
|
45 Mn2
|
-
|
-
|
-
|
217-269
|
40 Mn13
|
-
|
-
|
-
|
217-269
|
40 Cr
|
-
|
-
|
-
|
217-269
|
20 Cr Ni3A
|
-
|
-
|
-
|
217-269
|
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