金屬分析儀的鋼鐵化學(xué)成分允許差參考表一
元素 |
含量范圍(%) |
允許差(%) |
元素 |
含量范圍(%) |
允許差(%) |
碳 |
>0.0050~0.0100 |
0.0015 |
硅 |
>0.250~0.5000 |
0.023 |
>0.0100~0.0250 |
0.0025 |
>0.500~1.000 |
0.035 |
||
>0.0250~0.0500 |
0.0050 |
>1.00~2.50 |
0.05 |
||
>0.0500~0.100 |
0.010 |
>2.50~4.00 |
0.06 |
||
>0.100~0.250 |
0.015 |
>4.00 |
0.07 |
||
>0.250~0.500 |
0.020 |
錳 |
≤0.0250 |
0.0025 |
|
>0.500~1.000 |
0.0250 |
>0.0250~0.050 |
0.005 |
||
>1.000~2.000 |
0.035 |
>0.050~0.100 |
0.010 |
||
>2.000~3.000 |
0.045 |
>0.100~0.200 |
0.015 |
||
>3.000~4.00 |
0.050 |
>0.200~0.500 |
0.20 |
||
>4.00 |
0.072 |
>0.500~1.000 |
0.025 |
||
硫 |
>0.001~0.0025 |
0.0003 |
>1.00~2.00 |
0.030 |
|
>0.0025~0.0050 |
0.0005 |
>2.00~5.00 |
0.050 |
||
>0.0050~0.010 |
0.001 |
>5.00~10.00 |
0.10 |
||
>0.010~0.020 |
0.002 |
>10.00~20.00 |
0.14 |
||
>0.020~0.0500 |
0.004 |
鉻 |
>0.025~0.050 |
0.006 |
|
>0.050~0.100 |
0.006 |
>0.050~0.100 |
0.008 |
||
>0.100~0.200 |
0.010 |
>0.10~0.25 |
0.015 |
||
>0.20 |
0.015 |
>0.25~0.50 |
0.020 |
||
磷 |
≤0.0025 |
0.0003 |
>0.50~1.00 |
0.030 |
|
>0.0025~0.0050 |
0.0005 |
>1.00~5.00 |
0.05 |
||
>0.0050~0.0100 |
0.0010 |
>5.00~10.00 |
0.10 |
||
>0.0100~0.0300 |
0.0025 |
>10.00~14.00 |
0.12 |
||
>0.0300~0.100 |
0.004 |
>14.00~18.00 |
0.15 |
||
>0.100~0.200 |
0.008 |
>18.00~30.00 |
0.17 |
||
>0.200~0.400 |
0.010 |
|
|
||
>0.400~1.00 |
0.20 |
|
|
||
>1.00 |
0.30 |
|
|
金屬分析儀的鋼鐵化學(xué)成分允許參考表二
元素 |
含量范圍(%) |
允許差(%) |
元素 |
含量范圍(%) |
允許差(%) |
鎳 |
≤0.025 |
0.0025 |
鉬 |
≤0.0250 |
0.0015 |
>0.025~0.050 |
0.004 |
>0.025~0.050 |
0.005 |
||
>0.050~0.100 |
0.007 |
>0.050~0.100 |
0.010 |
||
>0.100~0.250 |
0.010 |
>0.100~0.500 |
0.020 |
||
>0.250~0.500 |
0.020 |
>0.500~1.000 |
0.025 |
||
>0.50~1.000 |
0.025 |
>1.00~2.00 |
0.04 |
||
>1.00~2.00 |
0.03 |
>2.00~4.00 |
0.05 |
||
>2.00~4.00 |
0.04 |
>4.00~6.00 |
0.08 |
||
>4.00~8.00 |
0.08 |
>6.00~9.00 |
0.12 |
||
>8.00~15.00 |
0.10 |
>9.00~12.00 |
0.15 |
||
>15.00~30.00 |
0.15 |
鋁 |
>0.010~0.030 |
0.003 |
|
>30.00~40.00 |
0.20 |
>0.030~0.050 |
0.05 |
||
銅 |
≤0.025 |
0.002 |
>0.050~0.100 |
0.010 |
|
>0.025~0.250 |
0.003 |
>0.10~0. 50 |
0.02 |
||
>0.050~0.100 |
0.005 |
>0.50~1.00 |
0.03 |
||
>0.100~0.250 |
0.015 |
>1.00~2.00 |
0.04 |
||
>0.250~0.500 |
0.020 |
>2.00~5.00 |
0.06 |
||
>0.500~1.00 |
0.03 |
>5.00~10.00 |
0.10 |
||
>1.00~3.00 |
0.05 |
鈦 |
≤0.025 |
0.0025 |
|
>3.00~6.00 |
0.06 |
>0.025~0.050 |
0.005 |
||
>6.00~10.00 |
0.07 |
>0.050~0.10 |
0.010 |
||
鎢 |
>0.05~0.10 |
0.02 |
>0.10~0.50 |
0.02 |
|
>0.10~0.50 |
0.03 |
>0.50~1.00 |
0.03 |
||
>0.50~1.00 |
0.04 |
>1.00~2.00 |
0.05 |
||
>1.00~1.50 |
0.05 |
>2.00~4.00 |
0.07 |
||
>1.50~3.00 |
0.06 |
|
|
||
>3.00~5.00 |
0.07 |
|
|
||
>5.00~8.00 |
0.09 |
|
|
||
>8.00~15.00 |
0.11 |
|
|
||
>15.00 |
0.13 |
|
|
金屬分析儀的鋼鐵化學(xué)成分允許參考表三
元素 |
含量范圍(%) |
允許差(%) |
元素 |
含量范圍(%) |
允許差(%) |
釩 |
>0.01~0.050 |
0.005 |
鋯 |
≤0.0050 |
0.0005 |
>0.05~0.10 |
0.010 |
>0.0050~0.0100 |
0.0010 |
||
>0.10~0.25 |
0.015 |
>0.0100~0.0250 |
0.0025 |
||
>0.25~0.50 |
0.02 |
>0.025~0.050 |
0.005 |
||
>0.50~1.00 |
0.03 |
>0.050~0.100 |
0.010 |
||
>1.00~2.00 |
0.04 |
>0.100~0.200 |
0.015 |
||
>2.00~3.00 |
0.05 |
>0.200~0.30 |
0.02 |
||
鈷 |
≤0.010 |
0.0010 |
硼 |
>0.0005~0.0010 |
0.00030 |
>0.010~0.025 |
0.0025 |
>0.0010~0.0050 |
0.0005 |
||
>0.025~0.050 |
0.005 |
>0.0050~0.010 |
0.001 |
||
>0.050~0.10 |
0.01 |
>1.00~2.00 |
0.10 |
||
>0.10~0.50 |
0.02 |
氮 |
>0.0020~0.100 |
0.0008 |
|
>0.50~1.00 |
0.03 |
>0.0100~0.0200 |
0.0010 |
||
>1.00~3.00 |
0.04 |
>0.020~0.100 |
0.005 |
||
>3.00~5.00 |
0.06 |
>0.10~0.20 |
0.01 |
||
>5.00~10.00 |
0.08 |
>0.20~0.40 |
0.02 |
||
>10.00~15.00 |
0.12 |
鉬 |
>0.005~0.010 |
0.001 |
|
>15.00~20.00 |
0.15 |
>0.010~0.030 |
0.002 |
||
稀 土 |
≤0.010 |
0.0015 |
>0.030~0.050 |
0.004 |
|
>0.010~0.0250 |
0.0025 |
錫 |
>0.0040~0.0100 |
0.0015 |
|
>0.025~0.050 |
0.005 |
>0.0100~0.0250 |
0.0025 |
||
>0.050~0.100 |
0.010 |
>0.025~0.050 |
0.005 |
||
>0.100~0.200 |
0.015 |
>0.050~0.100 |
0.010 |
||
鈮 |
>0.0100~0.0250 |
0.0025 |
>0.100~0.20 |
0.02 |
|
>0.025~0.050 |
0.0050 |
>0.20~0.40 |
0.03 |
||
>0.050~0.100 |
0.010 |
|
|
|
|
>0.100~0.250 |
0.025 |
|
|
||
>0.250~0.500 |
0.035 |
|
|
||
>0.500~1.000 |
0.045 |
|
|
||
>1.00~3.00 |
0.05 |
|
|
||
>3.00~5.00 |
0.07 |
|
|
金屬分析儀的鋼鐵化學(xué)成分允許參考表四
元素 |
含量范圍(%) |
允許差(%) |
砷 |
>0.0005~0.0025 |
0.003 |
>0.0025~0.0050 |
0.0005 |
|
>0.0050~0.0100 |
0.0010 |
|
>0.0100~0.0250 |
0.0025 |
|
>0.0250~0.0500 |
0.0050 |
|
>0.050~0.100 |
0.010 |
|
>0.100~0.250 |
0.015 |
|
>0.250~0.500 |
0.025 |
|
>0.500~1.00 |
0.035 |
|
>1.00~3.00 |
0.05 |
|
鎂 |
>0.010 |
0.002 |
>0.025~0.050 |
0.004 |
|
>0.050~0.100 |
0.006 |
|
>0.100~0.20 |
0.01 |
注:以上允許差僅為保證與判定分析結(jié)果的準(zhǔn)確度而論,與其他部門不發(fā)生任何關(guān)系。在平行分析二份或三份以上試樣時(shí),所得之分析數(shù)據(jù)的極差值不超過所載允許差2倍者(即±允許差內(nèi)),均應(yīng)認(rèn)為有效,以求得平均值。用標(biāo)準(zhǔn)試樣檢驗(yàn)時(shí),結(jié)果偏差不得超過所載允許差。