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159*8江蘇無縫鋼管價格159*8江蘇合金無縫鋼管重量
標準：
GB/T 14975-2002------中國國家標準
用途：
適用于一般結構及機械結構
尺寸公差：
|
熱軋（擠、擴）鋼管 |
冷拔（軋）鋼管 | ||||||
|
尺寸 |
允許偏差 |
尺寸 |
允許偏差 | ||||
|
普通級 |
高級 |
普通級 |
高級 | ||||
|
公稱外徑D |
68-159 |
±1.25%D |
±1.0%D |
公稱外徑D |
10-30 |
±0.30 |
±0.02 |
|
>30-50 |
±0.40 |
±0.30 | |||||
|
>159-426 |
±1.5%D |
>50 |
±0.9%D |
±0.8%D | |||
|
公稱壁厚 S |
<15 |
+15%S -12.5%S |
±12.5%S |
公稱壁厚 S |
≤3 |
±14%S |
+12.5%S -10%S |
|
≥15 |
+20%S -15%S |
>3 |
+12.5%S -10%S |
±10%S | |||
化學成份
|
牌號 |
化學成分（質量分數）(%) | |||||||||
|
C |
Si |
Mn |
P |
S |
Ni |
Cr |
Mo |
Ti |
其它 | |
|
0Cr18Ni9 |
≤0.07 |
≤1.00 |
≤2.00 |
≤0.035 |
≤0.030 |
8.00-11.00 |
17.00-19.00 |
|
|
|
|
1Cr18Ni9 |
≤0.15 |
≤1.00 |
≤2.00 |
≤0.035 |
≤0.030 |
8.00-10.00 |
17.00-19.00 |
|
|
|
|
00Cr19Ni10 |
≤0.030 |
≤1.00 |
≤2.00 |
≤0.035 |
≤0.030 |
8.00-12.00 |
18.00-20.00 |
|
|
|
|
0Cr18Ni10Ti |
≤0.08 |
≤1.00 |
≤2.00 |
≤0.035 |
≤0.030 |
9.00-12.00 |
17.00-19.00 |
|
≥5C% |
|
|
0Cr18Ni11Nb |
≤0.08 |
≤1.00 |
≤2.00 |
≤0.035 |
≤0.030 |
9.00-13.00 |
17.00-19.00 |
|
|
Nb≥10C% |
|
0Cr17Ni12Mo2 |
≤0.08 |
≤1.00 |
≤2.00 |
≤0.035 |
≤0.030 |
10.00-14.00 |
16.00-18.50 |
2.00-3.00 |
|
|
|
00Cr17Ni14Mo2 |
≤0.030 |
≤1.00 |
≤2.00 |
≤0.035 |
≤0.030 |
12.00-15.00 |
16.00-18.00 |
2.00-3.00 |
|
|
|
0Cr18Ni12Mo2Ti |
≤0.08 |
≤1.00 |
≤2.00 |
≤0.035 |
≤0.030 |
11.00-14.00 |
16.00-19.00 |
1.80-2.50 |
5C%-0.70 |
|
|
1Cr18Ni12Mo2Ti |
≤0.12 |
≤1.00 |
≤2.00 |
≤0.035 |
≤0.030 |
11.00-14.00 |
16.00-19.00 |
1.80-2.50 |
5(C%-0.02)-0.80 |
|
|
0Cr18Ni12Mo3Ti |
≤0.08 |
≤1.00 |
≤2.00 |
≤0.035 |
≤0.030 |
11.00-14.00 |
16.00-19.00 |
2.50-3.50 |
5C%-0.70 |
|
|
1Cr18Ni12Mo3Ti |
≤0.12 |
≤1.00 |
≤2.00 |
≤0.035 |
≤0.030 |
11.00-14.00 |
16.00-19.00 |
2.50-3.50 |
5(C%-0.02)-0.80 |
|
|
1Cr18Ni9Ti |
≤0.12 |
≤1.00 |
≤2.00 |
≤0.035 |
≤0.030 |
8.00-11.00 |
17.00-19.00 |
|
5(C%-0.02)-0.80 |
|
|
0Cr19Ni13Mo3 |
≤0.08 |
≤1.00 |
≤2.00 |
≤0.035 |
≤0.030 |
, 11.00-15.00 |
18.00-20.00 |
3.00-4.00 |
|
|
|
00Cr19Ni13Mo3 |
≤0.030 |
≤1.00 |
≤2.00 |
≤0.035 |
≤0.030 |
11.00-15.00 |
18.00-20.00 |
3.00-4.00 |
|
|
| ||