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一、执行标准、(GB/T2882-2005)
二、化学成分
|
牌号 |
元素 |
化学成分（质量分数）/% |
产品 形状 |
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|
Ni＋Co |
Cu |
Si |
Mn |
C |
M& |
S |
P |
Fe |
pb |
Bi |
As |
Sb |
Zn |
Cd |
Sn |
杂质总和 |
|
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|
N6 |
最小值最大值 |
99.5 — |
— 0.10 |
— 0.10 |
— 0.05 |
— 0.10 |
— 0.10 |
— 0.005 |
— 0.002 |
— 0.10 |
— 0.002 |
— 0.002 |
— 0.002 |
— 0.002 |
— 0.007 |
— 0.002 |
— 0.002 |
— 0.5 |
板、带、箔、管、棒、线 |
|
三、力学性能
|
牌号 |
壁厚/mm |
状态 |
抗拉强度Rm/MPa, 不小于 |
伸长率/%， 不小于 |
|
|
A |
A50 |
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|
N6 |
＜0.9 |
M |
390 |
— |
35 |
|
Y |
540 |
— |
— |
||
|
≥0.9 |
M |
370 |
35 |
— |
|
|
Y2 |
450 |
— |
12 |
||
|
Y |
520 |
6 |
— |
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四、允许偏差
|
外径 |
允许偏差 |
|
|
普通级 |
高精级 |
|
|
0.35~0.90 |
±0.007 |
±0.005 |
|
＞0.90~2.00 |
±0.010 |
±0.007 |
|
＞2.00~3.00 |
±0.012 |
±0.010 |
|
＞3.00~4.00 |
±0.018 |
±0.015 |
|
＞4.00~5.00 |
±0.022 |
±0.020 |
|
＞5.00~6.00 |
±0.030 |
±0.025 |
|
＞6.00~9.00 |
±0.040 |
±0.030 |
|
＞9.00~12 |
±0.045 |
±0.040 |
|
＞12~15 |
±0.080 |
±0.050 |
|
＞15~18 |
±0.100 |
±0.060 |
|
＞18~20 |
±0.120 |
±0.080 |
|
＞20~30 |
±0.150 |
±0.110 |
|
＞30~40 |
±0.170 |
±0.150 |
|
＞40~50 |
±0.250 |
±0.200 |
|
＞50~60 |
±0.350 |
±0.250 |
|
＞60~90 |
±0.450 |
±0.300 |
|
壁厚允许偏差 |
||
|
壁厚 |
允许偏差 |
|
|
普通级 |
高精级 |
|
|
0.05~0.06 |
±0.010 |
0.006± |
|
＞0.06~0.09 |
±0.010 |
±0.007 |
|
＞0.09~0.12 |
±0.015 |
±0.010 |
|
＞0.12~0.15 |
±0.020 |
±0.015 |
|
＞0.15~0.20 |
±0.025 |
±0.020 |
|
＞0.20~0.25 |
±0.030 |
±0.025 |
|
＞0.25~0.30 |
±0.035 |
±0.030 |
|
＞0.30~0.40 |
±0.040 |
±0.035 |
|
＞0.40~0.50 |
±0.045 |
±0.040 |
|
＞0.50~0.60 |
±0.055 |
±0.050 |
|
＞0.60~0.70 |
±0.070 |
±0.060 |
|
＞0.70~0.90 |
±0.080 |
±0.070 |
|
＞0.90~3.00 |
±公称壁厚的10% |
±公称壁厚的10% |
|
＞3.00~5.00 |
±公称壁厚的12.5% |
|
|
注：需方要求单向偏差时， 其值为表中数值的2倍。 |
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