Chromium-free SWRH82B high-carbon steel wire rod and production method
一种生产方法、高碳钢的技术,应用在钢铁生产制造领域,能够解决影响产品质量稳定性及生产效率、不容易生成马氏体、拉拔脆断等问题,达到促进化学成分均匀化、马氏体级别低、断丝率低的效果
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Embodiment 1
[0045]A kind of chromium-free SWRH82B high-carbon steel wire rod, the composition of SWRH82B high-carbon steel wire rod includes: C: 0.805wt%, Si: 0.247wt%, Mn: 0.772wt%, P: 0.012wt%, S: 0.008wt% %, Cr: 0.059wt%, Al: ≤0.0022wt%.
[0046] A production method of SWRH82B high-carbon steel wire rod without adding chromium, comprising the following steps:
[0047] (1) A 150-ton top-bottom double-blowing converter is used to smelt raw materials. In the 150-ton top-bottom double-blowing converter, high-strength supplementary blowing method is used to control oxygen, and control elements C: (0.10-0.40) wt%, P: ≤0.010wt%, the temperature at the end of the converter is controlled at (1580-1680) °C, high-carbon ferromanganese is added during smelting, the amount of high-carbon ferromanganese added is 8.0kg / t, no high-carbon ferrochrome is added; after the converter is alloyed, The content of each element is controlled as follows: C: (0.72-0.77) wt%, Si: (0.15-0.21) wt%, Mn: (0.63-0.73) ...
Embodiment 2
[0059] A chrome-free SWRH82B high-carbon steel wire rod, the composition of the SWRH82B high-carbon steel wire rod includes: C: 0.814wt%, Si: 0.231wt%, Mn: 0.746wt%, P: 0.011wt%, S: 0.007wt% %, Cr: 0.034wt%, Al: ≤0.0028wt%.
[0060] The production method of the chromium-free SWRH82B high-carbon steel wire rod is the same as in Example 1.
Embodiment 3
[0062] A chrome-free SWRH82B high-carbon steel wire rod, the composition of the SWRH82B high-carbon steel wire rod includes: C: 0.821wt%, Si: 0.239wt%, Mn: 0.754wt%, P: 0.012wt%, S: 0.008wt% %, Cr: 0.039wt%, Al: ≤0.0020wt%.
[0063] The production method of the chromium-free SWRH82B high-carbon steel wire rod is the same as in Example 1.
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