When heat treatment of the SA106 grade C seamless pipe with two ends opening, heat preservation should be adopted by means of both ends plugging, the insulation material is refractories.
During SA106 grade C seamless pipe heat treatment, the ascending and descending temperature and temperature velocity should be strictly controlled ≤ 125 ℃ / h.
When heat treatment of a closed SA106 grade C seamless pipe more than 6 meters is carried out, the internal two ends of the SA106 grade C seamless pipe shall be sealed and the heat preservation material shall be water-soluble paper, and the distance between the sealing material and the treatment area shall be controlled according to the diameter of the SA106 grade C seamless pipe and the treatment temperature to avoid burning failure.
