Original Position Statistic Distribution Analysis of Continuous Casting Round Billet of 18CrNiMo7-6 Low and Middle Alloy Steel

Hui WANG; Cheng JIN; Lei ZHAO; Lei YU; Fei LIN; Xiao-fei SUN; Yun-hai JIA

doi:10.3964/j.issn.1000-0593(2020)12-3906-06

Journals >Spectroscopy and Spectral Analysis >Volume 40 >Issue 12 >Page 3906 > Article

Spectroscopy and Spectral Analysis
Vol. 40, Issue 12, 3906 (2020)

Original Position Statistic Distribution Analysis of Continuous Casting Round Billet of 18CrNiMo7-6 Low and Middle Alloy Steel

Hui WANG^1、1, Cheng JIN^1、1, Lei ZHAO^1、1, Lei YU^1、1, Fei LIN^1、1, Xiao-fei SUN^1、1, and Yun-hai JIA^1、1

Author Affiliations

¹[in Chinese]

¹1. Central Iron and Steel Research Institute, Beijing 100081, China

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DOI: 10.3964/j.issn.1000-0593(2020)12-3906-06 Cite this Article

Hui WANG, Cheng JIN, Lei ZHAO, Lei YU, Fei LIN, Xiao-fei SUN, Yun-hai JIA. Original Position Statistic Distribution Analysis of Continuous Casting Round Billet of 18CrNiMo7-6 Low and Middle Alloy Steel[J]. Spectroscopy and Spectral Analysis, 2020, 40(12): 3906 Copy Citation Text

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Fig. 1. Schematic diagram of the sample position

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Fig. 2. Overall distribution of each element

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样号	1	2	3	4	5	6	7	8	9	10
C	0.187	0.183	0.192	0.190	0.184	0.193	0.191	0.186	0.183	0.183
Si	0.251	0.248	0.254	0.253	0.251	0.255	0.254	0.250	0.250	0.250
Mn	0.635	0.628	0.640	0.640	0.635	0.642	0.642	0.634	0.632	0.631
P	0.008 2	0.008 0	0.008 5	0.008 7	0.008 2	0.008 8	0.008 7	0.008 3	0.008 2	0.007 9
S	0.001 7	0.001 7	0.001 9	0.001 9	0.001 7	0.001 9	0.001 9	0.001 7	0.001 8	0.001 7
Cr	1.675	1.672	1.677	1.681	1.675	1.682	1.681	1.673	1.672	1.670
Ni	1.636	1.626	1.645	1.643	1.630	1.645	1.646	1.630	1.625	1.622
Mo	0.324	0.321	0.327	0.328	0.325	0.328	0.328	0.324	0.323	0.322
Nb	0.025	0.024	0.026	0.026	0.025	0.026	0.026	0.026	0.025	0.025

Table 1. Average content of each sample by OPA (%)

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样号	1	2	3	4	5	6	7	8	9	10
C	94.88	96.55	91.17	93.43	97.32	86.13	88.96	96.95	98.90	99.12
Si	95.34	99.29	90.86	91.65	98.52	89.14	90.24	98.10	98.91	99.52
Mn	98.82	99.61	97.93	98.60	99.98	90.84	95.66	99.53	99.99	99.99
P	82.98	83.50	80.58	81.56	85.24	73.43	78.46	83.92	86.73	89.22
S	85.25	86.59	80.94	84.59	87.01	74.19	82.28	85.86	93.12	91.82
Cr	96.02	96.48	94.93	95.48	99.15	91.49	93.96	98.99	99.78	99.65
Ni	96.14	96.83	94.30	95.05	98.42	88.05	92.58	98.40	98.65	99.26
Mo	96.48	97.11	94.40	96.02	98.48	89.66	95.23	97.92	99.71	99.04
Nb	84.65	85.59	82.13	83.95	87.92	77.46	80.25	86.34	90.56	93.76

Table 2. Statistic conformity (%) results of each sample

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样号	1	2	3	4	5	6	7	8	9	10
C	0.078 4	0.076 2	0.083 7	0.081 4	0.065 6	0.109 7	0.089 6	0.073 5	0.054 1	0.052 5
Si	0.041 0	0.028 1	0.052 3	0.045 6	0.033 2	0.060 1	0.054 6	0.034 7	0.031 4	0.027 6
Mn	0.029 4	0.024 3	0.039 0	0.035 1	0.023 8	0.056 7	0.044 1	0.025 2	0.020 1	0.020 7
P	0.526 7	0.516 9	0.547 8	0.532 3	0.503 6	0.651 6	0.563 5	0.509 4	0.500 2	0.466 2
S	0.603 7	0.548 2	0.712 6	0.638 4	0.523 8	0.785 2	0.684 7	0.575 3	0.354 7	0.479 4
Cr	0.050 3	0.047 0	0.056 3	0.052 1	0.036 3	0.061 2	0.059 8	0.041 2	0.033 2	0.035 4
Ni	0.048 3	0.041 7	0.055 8	0.053 2	0.037 1	0.060 9	0.058 5	0.039 6	0.035 0	0.033 6
Mo	0.054 8	0.050 6	0.065 3	0.058 8	0.047 2	0.078 3	0.061 9	0.050 1	0.039 3	0.043 3
Nb	0.180 3	0.167 6	0.264 8	0.190 7	0.146 3	0.407 1	0.284 7	0.153 6	0.136 9	0.109 0

Table 3. Statistic segregation results of each sample

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样号	1	2	3	4	5	6	7	8	9	10
C	1.08	0.92	2.99	1.51	0.76	5.41	3.37	0.84	0.65	0.59
Si	0.96	0.63	1.30	1.21	0.79	2.83	2.32	0.90	0.69	0.54
Mn	0.87	0.66	1.13	0.92	0.62	3.25	2.27	0.71	0.52	0.58
P	7.68	6.94	8.85	8.24	5.87	24.04	10.67	6.86	4.14	4.05
S	10.06	8.27	15.13	11.84	6.62	23.74	13.55	9.42	4.84	5.12
Cr	0.75	0.67	0.92	0.86	0.49	1.83	1.08	0.58	0.29	0.35
Ni	0.88	0.79	1.12	0.96	0.68	2.46	1.52	0.75	0.52	0.41
Mo	1.26	0.82	2.83	1.58	0.68	4.38	1.96	0.76	0.49	0.58
Nb	5.67	4.22	9.43	7.74	3.14	23.06	10.91	3.42	2.89	2.57

Table 4. Results of relative standard deviation (%) of each sample

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